Exhibit 4.3


 


NEITHER THIS SECURITY NOR THE SECURITIES FOR WHICH
THIS SECURITY IS EXERCISABLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE
IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND,
ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT
TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE
WITH APPLICABLE STATE SECURITIES LAWS. THIS SECURITY AND THE SECURITIES ISSUABLE UPON EXERCISE OF THIS SECURITY MAY BE PLEDGED IN
CONNECTION WITH A BONA FIDE MARGIN ACCOUNT OR OTHER LOAN SECURED BY SUCH SECURITIES.


 


PLACEMENT AGENT ADDITIONAL INVESTMENT OPTION


 


SCOPUS
BIOPHARMA, INC.


 


	AIO Shares: _______	Issue Date: November 23, 2021



 


THIS PLACEMENT AGENT ADDITIONAL
INVESTMENT OPTION (the “AIO”) certifies that, for value received, _____________ or its assigns (the “Holder”)
is entitled, upon the terms and subject to the limitations on exercise and the conditions hereinafter set forth, at any time on or after
the Authorized Share Increase Date (the “Initial Exercise Date”) and on or prior to 5:00 p.m. (New York City time)
on the five year anniversary of the Authorized Share Increase Date (the “Termination Date”) but not thereafter, to
subscribe for and purchase from Scopus Biopharma, Inc., a Delaware corporation (the “Company”), up to ______ shares
(as subject to adjustment hereunder, the “AIO Shares”) of Common Stock. The purchase price of one share of Common Stock
under this AIO shall be equal to the Exercise Price, as defined in Section 2(b). This AIO is being issued pursuant to that certain
engagement letter, dated as of November 5, 2021, by and between the Company and H.C. Wainwright & Co., LLC.


 


Section 1.              Definitions.
Capitalized terms used and not otherwise defined herein shall have the meanings set forth in that certain Securities Purchase Agreement
(the “Purchase Agreement”), dated November 21, 2021, among the Company and the purchasers signatory thereto.


 






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Section 2.              Exercise.


 


a)            Exercise
of AIO. Exercise of the purchase rights represented by this AIO may be made, in whole or in part, at any time or times on or after
the Initial Exercise Date and on or before the Termination Date by delivery to the Company of a duly executed PDF copy submitted by e-mail
(or e-mail attachment) of the Notice of Exercise in the form annexed hereto (the “Notice of Exercise”). Within the
earlier of (i) two (2) Trading Days and (ii) the number of Trading Days comprising the Standard Settlement Period (as defined
in Section 2(d)(i) herein) following the date of exercise as aforesaid, the Holder shall deliver the aggregate Exercise Price
for the shares specified in the applicable Notice of Exercise by wire transfer or cashier’s check drawn on a United States bank
unless the cashless exercise procedure specified in Section 2(c) below is specified in the applicable Notice of Exercise. No
ink-original Notice of Exercise shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any
Notice of Exercise be required. Notwithstanding anything herein to the contrary, the Holder shall not be required to physically surrender
this AIO to the Company until the Holder has purchased all of the AIO Shares available hereunder and the AIO has been exercised in full,
in which case, the Holder shall surrender this AIO to the Company for cancellation within three (3) Trading Days of the date on which
the final Notice of Exercise is delivered to the Company. Partial exercises of this AIO resulting in purchases of a portion of the total
number of AIO Shares available hereunder shall have the effect of lowering the outstanding number of AIO Shares purchasable hereunder
in an amount equal to the applicable number of AIO Shares purchased. The Holder and the Company shall maintain records showing the number
of AIO Shares purchased and the date of such purchases. The Company shall deliver any objection to any Notice of Exercise within one (1) Business
Day of receipt of such notice. The Holder and any assignee, by acceptance of this AIO, acknowledge and agree that, by reason of the
provisions of this paragraph, following the purchase of a portion of the AIO Shares hereunder, the number of AIO Shares available for
purchase hereunder at any given time may be less than the amount stated on the face hereof.


 


b)            Exercise
Price. The exercise price per share of Common Stock under this AIO shall be $4.0625, subject to adjustment hereunder (the “Exercise
Price”).


 


c)            Cashless
Exercise. If at the time of exercise hereof there is no effective registration statement registering, or the prospectus contained
therein is not available for the resale of the AIO Shares by the Holder, then this AIO may also be exercised, in whole or in part, at
such time by means of a “cashless exercise” in which the Holder shall be entitled to receive a number of AIO Shares equal
to the quotient obtained by dividing [(A-B) (X)] by (A), where:


 


(A) = as applicable:
(i) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise if such Notice of Exercise is
(1) both executed and delivered pursuant to Section 2(a) hereof on a day that is not a Trading Day or (2) both executed
and delivered pursuant to Section 2(a) hereof on a Trading Day prior to the opening of “regular trading hours” (as
defined in Rule 600(b) of Regulation NMS promulgated under the federal securities laws) on such Trading Day, (ii) at the
option of the Holder, either (y) the VWAP on the Trading Day immediately preceding the date of the applicable Notice of Exercise
or (z) the Bid Price of the Common Stock on the principal Trading Market as reported by Bloomberg L.P. (“Bloomberg”)
as of the time of the Holder’s execution of the applicable Notice of Exercise if such Notice of Exercise is executed during “regular
trading hours” on a Trading Day and is delivered within two (2) hours thereafter (including until two (2) hours after
the close of “regular trading hours” on a Trading Day) pursuant to Section 2(a) hereof or (iii) the VWAP on
the date of the applicable Notice of Exercise if the date of such Notice of Exercise is a Trading Day and such Notice of Exercise is both
executed and delivered pursuant to Section 2(a) hereof after the close of “regular trading hours” on such Trading
Day;


 






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(B) = the
Exercise Price of this AIO, as adjusted hereunder; and


 


(X) = the
number of AIO Shares that would be issuable upon exercise of this AIO in accordance with the terms of this AIO if such exercise were by
means of a cash exercise rather than a cashless exercise.


 


If
AIO Shares are issued in such a cashless exercise, the parties acknowledge and agree that in accordance with Section 3(a)(9) of
the Securities Act, the AIO Shares shall take on the characteristics of the AIOs being exercised, and the holding period of the AIO Shares
being issued may be tacked on to the holding period of this AIO. The Company agrees not to take any position contrary to this
Section 2(c).


 


“Bid Price”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed
or quoted on a Trading Market, the bid price of the Common Stock for the time in question (or the nearest preceding date) on the Trading
Market on which the Common Stock is then listed or quoted as reported by Bloomberg (based on a Trading Day from 9:30 a.m. (New York
City time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading Market, the volume weighted average price
of the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock is not
then listed or quoted for trading on OTCQB or OTCQX and if prices for the Common Stock are then reported on The Pink Open Market (or a
similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock
so reported, or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser
selected in good faith by the Purchasers of a majority in interest of the Securities then outstanding and reasonably acceptable to the
Company, the fees and expenses of which shall be paid by the Company.


 


“VWAP”
means, for any date, the price determined by the first of the following clauses that applies: (a) if the Common Stock is then listed
or quoted on a Trading Market, the daily volume weighted average price of the Common Stock for such date (or the nearest preceding date)
on the Trading Market on which the Common Stock is then listed or quoted as reported by Bloomberg (based on a Trading Day from 9:30 a.m. (New
York City time) to 4:02 p.m. (New York City time)), (b)  if OTCQB or OTCQX is not a Trading Market, the volume weighted average
price of the Common Stock for such date (or the nearest preceding date) on OTCQB or OTCQX as applicable, (c) if the Common Stock
is not then listed or quoted for trading on OTCQB or OTCQX and if prices for the Common Stock are then reported in The Pink Open Market
(or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common
Stock so reported, or (d) in all other cases, the fair market value of a share of Common Stock as determined by an independent appraiser
selected in good faith by the Purchasers of a majority in interest of the Securities then outstanding and reasonably acceptable to the
Company, the fees and expenses of which shall be paid by the Company.


 






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Notwithstanding
anything herein to the contrary, on the Termination Date, this AIO shall be automatically exercised via cashless exercise pursuant to
this Section 2(c).


 


		d)	Mechanics of Exercise.



 


i.             Delivery
of AIO Shares Upon Exercise. The Company shall cause the AIO Shares purchased hereunder to be transmitted by the Transfer Agent to
the Holder by crediting the account of the Holder’s or its designee’s balance account with The Depository Trust Company through
its Deposit or Withdrawal at Custodian system (“DWAC”) if the Company is then a participant in such system and either
(A) there is an effective registration statement permitting the issuance of the AIO Shares to or resale of the AIO Shares by the
Holder or (B) the AIO Shares are eligible for resale by the Holder without volume or manner-of-sale limitations pursuant to Rule 144
(assuming cashless exercise of the AIOs), and otherwise by physical delivery of a certificate, registered in the Company’s share
register in the name of the Holder or its designee, for the number of AIO Shares to which the Holder is entitled pursuant to such exercise
to the address specified by the Holder in the Notice of Exercise by the date that is the latest of (i) two (2) Trading Days
after the delivery to the Company of the Notice of Exercise, (ii) one (1) Trading Day after delivery of the aggregate Exercise
Price to the Company and (iii) the number of Trading Days comprising the Standard Settlement Period after the delivery to the Company
of the Notice of Exercise (such date, the “AIO Share Delivery Date”). Upon delivery of the Notice of Exercise, the
Holder shall be deemed for all corporate purposes to have become the holder of record of the AIO Shares with respect to which this AIO
has been exercised, irrespective of the date of delivery of the AIO Shares, provided that payment of the aggregate Exercise Price (other
than in the case of a cashless exercise) is received within the earlier of (i) two (2) Trading Days and (ii) the number
of Trading Days comprising the Standard Settlement Period following delivery of the Notice of Exercise. If the Company fails for any reason
to deliver to the Holder the AIO Shares subject to a Notice of Exercise by the AIO Share Delivery Date, the Company shall pay to the Holder,
either (A) in cash, as liquidated damages and not as a penalty, for each $1,000 of AIO Shares subject to such exercise (based on
the VWAP of the Common Stock on the date of the applicable Notice of Exercise), $10 per Trading Day (increasing to $20 per Trading Day
on the third Trading Day after the AIO Share Delivery Date) for each Trading Day after the second Trading Day after such AIO Share Delivery
Date until the earlier of such AIO Shares being delivered or the Holder rescinding such exercise or (B) the amount pursuant to a
Buy-In pursuant to Section 2(d)(iv) hereof. The Company agrees to maintain a transfer agent that is a participant in the FAST
program so long as this AIO remains outstanding and exercisable. As used herein, “Standard Settlement Period” means
the standard settlement period, expressed in a number of Trading Days, on the Company’s primary Trading Market with respect to the
Common Stock as in effect on the date of delivery of the Notice of Exercise.


 






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ii.            Delivery
of New AIOs Upon Exercise. If this AIO shall have been exercised in part, the Company shall, at the request of a Holder and upon surrender
of this AIO certificate, at the time of delivery of the AIO Shares, deliver to the Holder a new AIO evidencing the rights of the Holder
to purchase the unpurchased AIO Shares called for by this AIO, which new AIO shall in all other respects be identical with this AIO.


 


iii.           Rescission
Rights. If the Company fails to cause the Transfer Agent to transmit to the Holder the AIO Shares pursuant to Section 2(d)(i) by
the AIO Share Delivery Date, then the Holder will have the right to rescind such exercise.


 


iv.           Compensation
for Buy-In on Failure to Timely Deliver AIO Shares Upon Exercise. In addition to any other rights available to the Holder, if the
Company fails to cause the Transfer Agent to transmit to the Holder the AIO Shares in accordance with the provisions of Section 2(d)(i) above
pursuant to an exercise on or before the AIO Share Delivery Date, and if after such date the Holder is required by its broker to purchase
(in an open market transaction or otherwise) or the Holder’s brokerage firm otherwise purchases, shares of Common Stock to deliver
in satisfaction of a sale by the Holder of the AIO Shares which the Holder anticipated receiving upon such exercise (a “Buy-In”),
then the Company shall (A) pay in cash to the Holder the amount, if any, by which (x) the Holder’s total purchase price
(including brokerage commissions, if any) for the shares of Common Stock so purchased exceeds (y) the amount obtained by multiplying
(1) the number of AIO Shares that the Company was required to deliver to the Holder in connection with the exercise at issue times
(2) the price at which the sell order giving rise to such purchase obligation was executed, and (B) at the option of the Holder,
either reinstate the portion of the AIO and equivalent number of AIO Shares for which such exercise was not honored (in which case such
exercise shall be deemed rescinded) or deliver to the Holder the number of shares of Common Stock that would have been issued had the
Company timely complied with its exercise and delivery obligations hereunder. For example, if the Holder purchases Common Stock having
a total purchase price of $11,000 to cover a Buy-In with respect to an attempted exercise of shares of Common Stock with an aggregate
sale price giving rise to such purchase obligation of $10,000, under clause (A) of the immediately preceding sentence the Company
shall be required to pay the Holder $1,000. The Holder shall provide the Company written notice indicating the amounts payable to the
Holder in respect of the Buy-In and, upon request of the Company, evidence of the amount of such loss. Nothing herein shall limit a Holder’s
right to pursue any other remedies available to it hereunder, at law or in equity including, without limitation, a decree of specific
performance and/or injunctive relief with respect to the Company’s failure to timely deliver shares of Common Stock upon exercise
of the AIO as required pursuant to the terms hereof.


 






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v.            No
Fractional Shares or Scrip. No fractional shares or scrip representing fractional shares shall be issued upon the exercise of this
AIO. As to any fraction of a share which the Holder would otherwise be entitled to purchase upon such exercise, the Company shall, at
its election, either pay a cash adjustment in respect of such final fraction in an amount equal to such fraction multiplied by the Exercise
Price or round up to the next whole share.


 


vi.           Charges,
Taxes and Expenses. Issuance of AIO Shares shall be made without charge to the Holder for any issue or transfer tax or other incidental
expense in respect of the issuance of such AIO Shares, all of which taxes and expenses shall be paid by the Company, and such AIO Shares
shall be issued in the name of the Holder or in such name or names as may be directed by the Holder; provided, however,
that, in the event that AIO Shares are to be issued in a name other than the name of the Holder, this AIO when surrendered for exercise
shall be accompanied by the Assignment Form attached hereto duly executed by the Holder and the Company may require, as a condition
thereto, the payment of a sum sufficient to reimburse it for any transfer tax incidental thereto. The Company shall pay all Transfer Agent
fees required for same-day processing of any Notice of Exercise and all fees to the Depository Trust Company (or another established clearing
corporation performing similar functions) required for same-day electronic delivery of the AIO Shares.


 


vii.          Closing
of Books. The Company will not close its stockholder books or records in any manner which prevents the timely exercise of this AIO,
pursuant to the terms hereof.


 






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e)             Holder’s
Exercise Limitations. The Company shall not effect any exercise of this AIO, and a Holder shall not have the right to exercise any
portion of this AIO, pursuant to Section 2 or otherwise, to the extent that after giving effect to such issuance after exercise as
set forth on the applicable Notice of Exercise, the Holder (together with the Holder’s Affiliates, and any other Persons acting
as a group together with the Holder or any of the Holder’s Affiliates (such Persons, “Attribution Parties”)),
would beneficially own in excess of the Beneficial Ownership Limitation (as defined below).  For purposes of the foregoing sentence,
the number of shares of Common Stock beneficially owned by the Holder and its Affiliates and Attribution Parties shall include the number
of shares of Common Stock issuable upon exercise of this AIO with respect to which such determination is being made, but shall exclude
the number of shares of Common Stock which would be issuable upon (i) exercise of the remaining, nonexercised portion of this AIO
beneficially owned by the Holder or any of its Affiliates or Attribution Parties and (ii) exercise or conversion of the unexercised
or nonconverted portion of any other securities of the Company (including, without limitation, any other Common Stock Equivalents) subject
to a limitation on conversion or exercise analogous to the limitation contained herein beneficially owned by the Holder or any of its
Affiliates or Attribution Parties.  Except as set forth in the preceding sentence, for purposes of this Section 2(e), beneficial
ownership shall be calculated in accordance with Section 13(d) of the Exchange Act and the rules and regulations promulgated
thereunder, it being acknowledged by the Holder that the Company is not representing to the Holder that such calculation is in compliance
with Section 13(d) of the Exchange Act and the Holder is solely responsible for any schedules required to be filed in accordance
therewith. To the extent that the limitation contained in this Section 2(e) applies, the determination of whether this AIO is
exercisable (in relation to other securities owned by the Holder together with any Affiliates and Attribution Parties) and of which portion
of this AIO is exercisable shall be in the sole discretion of the Holder, and the submission of a Notice of Exercise shall be deemed to
be the Holder’s determination of whether this AIO is exercisable (in relation to other securities owned by the Holder together with
any Affiliates and Attribution Parties) and of which portion of this AIO is exercisable, in each case subject to the Beneficial Ownership
Limitation, and the Company shall have no obligation to verify or confirm the accuracy of such determination. In addition, a determination
as to any group status as contemplated above shall be determined in accordance with Section 13(d) of the Exchange Act and the
rules and regulations promulgated thereunder. For purposes of this Section 2(e), in determining the number of outstanding shares
of Common Stock, a Holder may rely on the number of outstanding shares of Common Stock as reflected in (A) the Company’s most
recent periodic or annual report filed with the Commission, as the case may be, (B) a more recent public announcement by the Company
or (C) a more recent written notice by the Company or the Transfer Agent setting forth the number of shares of Common Stock outstanding. 
Upon the written or oral request of a Holder, the Company shall within one Trading Day confirm orally and in writing to the Holder the
number of shares of Common Stock then outstanding.  In any case, the number of outstanding shares of Common Stock shall be determined
after giving effect to the conversion or exercise of securities of the Company, including this AIO, by the Holder or its Affiliates or
Attribution Parties since the date as of which such number of outstanding shares of Common Stock was reported. The “Beneficial
Ownership Limitation” shall be 4.99% of the number of shares of the Common Stock outstanding immediately after giving effect
to the issuance of shares of Common Stock issuable upon exercise of this AIO. The Holder, upon notice to the Company, may increase or
decrease the Beneficial Ownership Limitation provisions of this Section 2(e), provided that the Beneficial Ownership Limitation in
no event exceeds 9.99% of the number of shares of the Common Stock outstanding immediately after giving effect to the issuance of shares
of Common Stock upon exercise of this AIO held by the Holder and the provisions of this Section 2(e) shall continue to apply.
Any increase in the Beneficial Ownership Limitation will not be effective until the 61st day after such notice is delivered
to the Company. The provisions of this paragraph shall be construed and implemented in a manner otherwise than in strict conformity with
the terms of this Section 2(e) to correct this paragraph (or any portion hereof) which may be defective or inconsistent with
the intended Beneficial Ownership Limitation herein contained or to make changes or supplements necessary or desirable to properly give
effect to such limitation. The limitations contained in this paragraph shall apply to a successor holder of this AIO.


 






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Section 3.               Certain
Adjustments.


 


a)             Stock
Dividends and Splits. If the Company, at any time while this AIO is outstanding: (i) pays a stock dividend or otherwise makes
a distribution or distributions on shares of its Common Stock or any other equity or equity equivalent securities payable in shares of
Common Stock (which, for avoidance of doubt, shall not include any shares of Common Stock issued by the Company upon exercise of this
AIO), (ii) subdivides outstanding shares of Common Stock into a larger number of shares, (iii) combines (including by way of
reverse stock split) outstanding shares of Common Stock into a smaller number of shares, or (iv) issues by reclassification of shares
of the Common Stock any shares of capital stock of the Company, then in each case the Exercise Price shall be multiplied by a fraction
of which the numerator shall be the number of shares of Common Stock (excluding treasury shares, if any) outstanding immediately before
such event and of which the denominator shall be the number of shares of Common Stock outstanding immediately after such event, and the
number of shares issuable upon exercise of this AIO shall be proportionately adjusted such that the aggregate Exercise Price of this AIO
shall remain unchanged. Any adjustment made pursuant to this Section 3(a) shall become effective immediately after the record
date for the determination of stockholders entitled to receive such dividend or distribution and shall become effective immediately after
the effective date in the case of a subdivision, combination or re-classification.


 


b)            [RESERVED]


 






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c)            Subsequent
Rights Offerings. In addition to any adjustments pursuant to Section 3(a) above, if at any time the Company grants, issues
or sells any Common Stock Equivalents or rights to purchase stock, AIOs, securities or other property pro rata to the record holders of
any class of shares of Common Stock (the “Purchase Rights”), then the Holder will be entitled to acquire, upon the
terms applicable to such Purchase Rights, the aggregate Purchase Rights which the Holder could have acquired if the Holder had held the
number of shares of Common Stock acquirable upon complete exercise of this AIO (without regard to any limitations on exercise hereof,
including without limitation, the Beneficial Ownership Limitation) immediately before the date on which a record is taken for the grant,
issuance or sale of such Purchase Rights, or, if no such record is taken, the date as of which the record holders of shares of Common
Stock are to be determined for the grant, issue or sale of such Purchase Rights (provided, however, that, to the extent
that the Holder’s right to participate in any such Purchase Right would result in the Holder exceeding the Beneficial Ownership
Limitation, then the Holder shall not be entitled to participate in such Purchase Right to such extent (or beneficial ownership of such
shares of Common Stock as a result of such Purchase Right to such extent) and such Purchase Right to such extent shall be held in abeyance
for the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding the Beneficial Ownership Limitation).


 


d)            Pro
Rata Distributions. During such time as this AIO is outstanding, if the Company shall declare or make any dividend or other distribution
of its assets (or rights to acquire its assets) to holders of shares of Common Stock, by way of return of capital or otherwise (including,
without limitation, any distribution of cash, stock or other securities, property or options by way of a dividend, spin off, reclassification,
corporate rearrangement, scheme of arrangement or other similar transaction) (a “Distribution”), at any time after
the issuance of this AIO, then, in each such case, the Holder shall be entitled to participate in such Distribution to the same extent
that the Holder would have participated therein if the Holder had held the number of shares of Common Stock acquirable upon complete
exercise of this AIO (without regard to any limitations on exercise hereof, including without limitation, the Beneficial Ownership Limitation)
immediately before the date of which a record is taken for such Distribution, or, if no such record is taken, the date as of which the
record holders of shares of Common Stock are to be determined for the participation in such Distribution (provided, however,
that, to the extent that the Holder's right to participate in any such Distribution would result in the Holder exceeding the Beneficial
Ownership Limitation, then the Holder shall not be entitled to participate in such Distribution to such extent (or in the beneficial
ownership of any shares of Common Stock as a result of such Distribution to such extent) and the portion of such Distribution shall be
held in abeyance for the benefit of the Holder until such time, if ever, as its right thereto would not result in the Holder exceeding
the Beneficial Ownership Limitation).


 






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e)             Fundamental
Transaction. If, at any time while this AIO is outstanding, (i) the Company, directly or indirectly, in one or more related
transactions effects any merger or consolidation of the Company with or into another Person, (ii) the Company (or any Subsidiary),
directly or indirectly, effects any sale, lease, license, assignment, transfer, conveyance or other disposition of all or substantially
all of its assets in one or a series of related transactions, (iii) any, direct or indirect, purchase offer, tender offer or exchange
offer (whether by the Company or another Person) is completed pursuant to which holders of Common Stock are permitted to sell, tender
or exchange their shares for other securities, cash or property and has been accepted by the holders of 50% or more of the outstanding
Common Stock, (iv) the Company, directly or indirectly, in one or more related transactions effects any reclassification, reorganization
or recapitalization of the Common Stock or any compulsory share exchange pursuant to which the Common Stock is effectively converted
into or exchanged for other securities, cash or property, or (v) the Company, directly or indirectly, in one or more related transactions
consummates a stock or share purchase agreement or other business combination (including, without limitation, a reorganization, recapitalization,
spin-off, merger or scheme of arrangement) with another Person or group of Persons whereby such other Person or group acquires more than
50% of the outstanding shares of Common Stock (not including any shares of Common Stock held by the other Person or other Persons making
or party to, or associated or affiliated with the other Persons making or party to, such stock or share purchase agreement or other business
combination) (each a “Fundamental Transaction”), then, upon any subsequent exercise of this AIO, the Holder shall
have the right to receive, for each AIO Share that would have been issuable upon such exercise immediately prior to the occurrence of
such Fundamental Transaction, at the option of the Holder (without regard to any limitation in Section 2(e) on the exercise
of this AIO), the number of shares of Common Stock of the successor or acquiring corporation or of the Company, if it is the surviving
corporation, and any additional consideration (the “Alternate Consideration”) receivable as a result of such Fundamental
Transaction by a holder of the number of shares of Common Stock for which this AIO is exercisable immediately prior to such Fundamental
Transaction (without regard to any limitation in Section 2(e) on the exercise of this AIO). For purposes of any such exercise,
the determination of the Exercise Price shall be appropriately adjusted to apply to such Alternate Consideration based on the amount
of Alternate Consideration issuable in respect of one share of Common Stock in such Fundamental Transaction, and the Company shall apportion
the Exercise Price among the Alternate Consideration in a reasonable manner reflecting the relative value of any different components
of the Alternate Consideration. If holders of Common Stock are given any choice as to the securities, cash or property to be received
in a Fundamental Transaction, then the Holder shall be given the same choice as to the Alternate Consideration it receives upon any exercise
of this AIO following such Fundamental Transaction. Notwithstanding anything to the contrary, in the event of a Fundamental Transaction,
the Company or any Successor Entity (as defined below) shall, at the Holder’s option, exercisable at any time concurrently with,
or within 30 days after, the consummation of the Fundamental Transaction (or, if later, the date of the public announcement of the applicable
Fundamental Transaction), purchase this AIO from the Holder by paying to the Holder, as described below, an amount of consideration equal
to the Black Scholes Value (as defined below) of the remaining unexercised portion of this AIO on the date of the consummation of such
Fundamental Transaction. The consideration paid to the Holder from the Company or any Successor Entity shall be the same type or form
of consideration (and in the same proportion), valued at the Black Scholes Value of the unexercised portion of this AIO, that is being
offered and paid to the holders of Common Stock of the Company in connection with the Fundamental Transaction, whether that consideration
be in the form of cash, stock or any combination thereof, (for purposes of clarity, if the holders of Common Stock are given the choice
to receive from among alternative forms of consideration in connection with the Fundamental Transaction the Holder shall have the same
choice); provided, further, that if holders of Common Stock of the Company are not offered or paid any consideration in
such Fundamental Transaction, such holders of Common Stock will be deemed to have received common stock of the Successor Entity (which
Entity may be the Company following such Fundamental Transaction) in such Fundamental Transaction. “Black Scholes Value”
means the value of this AIO based on the Black-Scholes Option Pricing Model obtained from the “OV” function on Bloomberg
determined as of the day of consummation of the applicable Fundamental Transaction for pricing purposes and reflecting (A) a risk-free
interest rate corresponding to the U.S. Treasury rate for a period equal to the time between the date of the public announcement of the
applicable Fundamental Transaction and the Termination Date, (B) an expected volatility equal to the greater of 100% and the 100
day volatility obtained from the HVT function on Bloomberg (determined utilizing a 365 day annualization factor) as of the Trading Day
immediately following the public announcement of the applicable Fundamental Transaction, (C) the underlying price per share used
in such calculation shall be the greater of (i) the sum of the price per share being offered in cash, if any, plus the value of
any non-cash consideration, if any, being offered in such Fundamental Transaction and (ii) the highest VWAP during the period beginning
on the Trading Day immediately preceding the announcement of the applicable Fundamental Transaction (or the consummation of the applicable
Fundamental Transaction, if earlier) and ending on the Trading Day of the Holder’s request pursuant to this Section 3(e) and
(D) a remaining option time equal to the time between the date of the public announcement of the applicable Fundamental Transaction
and the Termination Date and (E) a zero cost of borrow. The payment of the cash portion, if any, of the Black Scholes Value will
be made by wire transfer of immediately available funds (or such other consideration) within the later of (i) five Business Days
of the Holder’s election and (ii) the date of consummation of the Fundamental Transaction. The Company shall cause any successor
entity in a Fundamental Transaction in which the Company is not the survivor (the “Successor Entity”) to assume in
writing all of the obligations of the Company under this AIO and the other Transaction Documents in accordance with the provisions of
this Section 3(e) pursuant to written agreements in form and substance reasonably satisfactory to the Holder and approved by
the Holder (without unreasonable delay) prior to such Fundamental Transaction and shall, at the option of the Holder, deliver to the
Holder in exchange for this AIO a security of the Successor Entity evidenced by a written instrument substantially similar in form and
substance to this AIO which is exercisable for a corresponding number of shares of capital stock of such Successor Entity (or its parent
entity) equivalent to the shares of Common Stock acquirable and receivable upon exercise of this AIO (without regard to any limitations
on the exercise of this AIO) prior to such Fundamental Transaction, and with an exercise price which applies the exercise price hereunder
to such shares of capital stock (but taking into account the relative value of the shares of Common Stock pursuant to such Fundamental
Transaction and the value of such shares of capital stock, such number of shares of capital stock and such exercise price being for the
purpose of protecting the economic value of this AIO immediately prior to the consummation of such Fundamental Transaction), and which
is reasonably satisfactory in form and substance to the Holder. Upon the occurrence of any such Fundamental Transaction, the Successor
Entity shall succeed to, and be substituted for (so that from and after the date of such Fundamental Transaction, the provisions of this
AIO and the other Transaction Documents referring to the “Company” shall refer instead to the Successor Entity), and may
exercise every right and power of the Company and shall assume all of the obligations of the Company under this AIO and the other Transaction
Documents with the same effect as if such Successor Entity had been named as the Company herein. 






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f)             Calculations.
All calculations under this Section 3 shall be made to the nearest cent or the nearest 1/100th of a share, as the case may be. For
purposes of this Section 3, the number of shares of Common Stock deemed to be issued and outstanding as of a given date shall be
the sum of the number of shares of Common Stock (excluding treasury shares, if any) issued and outstanding.


 


g)            Notice
to Holder.


 


i.             Adjustment
to Exercise Price. Whenever the Exercise Price is adjusted pursuant to any provision of this Section 3, the Company shall promptly
deliver to the Holder by email a notice setting forth the Exercise Price after such adjustment and any resulting adjustment to the number
of AIO Shares and setting forth a brief statement of the facts requiring such adjustment.


 


ii.            Notice
to Allow Exercise by Holder. If (A) the Company shall declare a dividend (or any other distribution in whatever form) on the
Common Stock, (B) the Company shall declare a special nonrecurring cash dividend on or a redemption of the Common Stock, (C) the
Company shall authorize the granting to all holders of the Common Stock rights or AIOs to subscribe for or purchase any shares of capital
stock of any class or of any rights, (D) the approval of any stockholders of the Company shall be required in connection with any
reclassification of the Common Stock, any consolidation or merger to which the Company (or any of its Subsidiaries) is a party, any sale
or transfer of all or substantially all of its assets, or any compulsory share exchange whereby the Common Stock is converted into other
securities, cash or property, or (E) the Company shall authorize the voluntary or involuntary dissolution, liquidation or winding
up of the affairs of the Company, then, in each case, the Company shall cause to be delivered by email to the Holder at its last email
address as it shall appear upon the AIO Register of the Company, at least 20 calendar days prior to the applicable record or effective
date hereinafter specified, a notice stating (x) the date on which a record is to be taken for the purpose of such dividend, distribution,
redemption, rights or AIOs, or if a record is not to be taken, the date as of which the holders of the Common Stock of record to be entitled
to such dividend, distributions, redemption, rights or AIOs are to be determined or (y) the date on which such reclassification,
consolidation, merger, sale, transfer or share exchange is expected to become effective or close, and the date as of which it is expected
that holders of the Common Stock of record shall be entitled to exchange their shares of the Common Stock for securities, cash or other
property deliverable upon such reclassification, consolidation, merger, sale, transfer or share exchange; provided that the failure to
deliver such notice or any defect therein or in the delivery thereof shall not affect the validity of the corporate action required to
be specified in such notice. To the extent that any notice provided in this AIO constitutes, or contains, material, non-public information
regarding the Company or any of the Subsidiaries, the Company shall simultaneously file such notice with the Commission pursuant to a
Current Report on Form 8-K. The Holder shall remain entitled to exercise this AIO during the period commencing on the date of such
notice to the effective date of the event triggering such notice except as may otherwise be expressly set forth herein.


 






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h)            Voluntary
Adjustment By Company. Subject to the rules and regulations of the Trading Market, the Company may at any time during the term
of this AIO, subject to the prior written consent of the Holder, reduce the then current Exercise Price to any amount and for any period
of time deemed appropriate by the board of directors of the Company.


 


Section 4.               Transfer
of AIO.


 


a)             Transferability.
Following the Authorized Share Increase Date, subject to compliance with any applicable securities laws and the conditions set forth
in Section 4(d) hereof and to the provisions of Section 4.1 of the Purchase Agreement, this AIO and all rights hereunder
(including, without limitation, any registration rights) are transferable, in whole or in part, upon surrender of this AIO at the principal
office of the Company or its designated agent, together with a written assignment of this AIO substantially in the form attached hereto
duly executed by the Holder or its agent or attorney and funds sufficient to pay any transfer taxes payable upon the making of such transfer.
Upon such surrender and, if required, such payment, the Company shall execute and deliver a new AIO or AIOs in the name of the assignee
or assignees, as applicable, and in the denomination or denominations specified in such instrument of assignment, and shall issue to
the assignor a new AIO evidencing the portion of this AIO not so assigned, and this AIO shall promptly be cancelled. Notwithstanding
anything herein to the contrary, the Holder shall not be required to physically surrender this AIO to the Company unless the Holder has
assigned this AIO in full, in which case, the Holder shall surrender this AIO to the Company within three (3) Trading Days of the
date on which the Holder delivers an assignment form to the Company assigning this AIO in full. The AIO, if properly assigned in accordance
herewith, may be exercised by a new holder for the purchase of AIO Shares without having a new AIO issued.


 


b)            New
AIOs. This AIO may be divided or combined with other AIOs upon presentation hereof at the aforesaid office of the Company, together
with a written notice specifying the names and denominations in which new AIOs are to be issued, signed by the Holder or its agent or
attorney. Subject to compliance with Section 4(a), as to any transfer which may be involved in such division or combination, the
Company shall execute and deliver a new AIO or AIOs in exchange for the AIO or AIOs to be divided or combined in accordance with such
notice. All AIOs issued on transfers or exchanges shall be dated the original Issue Date and shall be identical with this AIO except as
to the number of AIO Shares issuable pursuant thereto.


 






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c)            AIO
Register. The Company shall register this AIO, upon records to be maintained by the Company for that purpose (the “AIO Register”),
in the name of the record Holder hereof from time to time. The Company may deem and treat the registered Holder of this AIO as the absolute
owner hereof for the purpose of any exercise hereof or any distribution to the Holder, and for all other purposes, absent actual notice
to the contrary.


 


d)            Transfer
Restrictions. If, at the time of the surrender of this AIO in connection with any transfer of this AIO, the transfer of this AIO
shall not be either (i) registered pursuant to an effective registration statement under the Securities Act and under applicable
state securities or blue sky laws or (ii) eligible for resale without volume or manner-of-sale restrictions or current public information
requirements pursuant to Rule 144, the Company may require, as a condition of allowing such transfer, that the Holder or transferee
of this AIO, as the case may be, comply with the provisions of Section 5.7 of the Purchase Agreement.


 


e)             Representation
by the Holder. The Holder, by the acceptance hereof, represents and AIOs that it is acquiring this AIO and, upon any exercise hereof,
will acquire the AIO Shares issuable upon such exercise, for its own account and not with a view to or for distributing or reselling such
AIO Shares or any part thereof in violation of the Securities Act or any applicable state securities law, except pursuant to sales registered
or exempted under the Securities Act.


 


Section 5.               Miscellaneous.


 


a)             No
Rights as Stockholder Until Exercise; No Settlement in Cash. This AIO does not entitle the Holder to any voting rights, dividends
or other rights as a stockholder of the Company prior to the exercise hereof as set forth in Section 2(d)(i), except as expressly
set forth in Section 3. Without limiting any rights of a Holder to receive AIO Shares on a “cashless exercise” pursuant
to Section 2(c) or to receive cash payments pursuant to Section 2(d)(i) and Section 2(d)(iv) herein, in
no event shall the Company be required to net cash settle an exercise of this AIO.


 


b)             Loss,
Theft, Destruction or Mutilation of AIO. The Company covenants that upon receipt by the Company of evidence reasonably satisfactory
to it of the loss, theft, destruction or mutilation of this AIO or any stock certificate relating to the AIO Shares, and in case of loss,
theft or destruction, of indemnity or security reasonably satisfactory to it (which, in the case of the AIO, shall not include the posting
of any bond), and upon surrender and cancellation of such AIO or stock certificate, if mutilated, the Company will make and deliver a
new AIO or stock certificate of like tenor and dated as of such cancellation, in lieu of such AIO or stock certificate.


 






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c)            Saturdays,
Sundays, Holidays, etc. If the last or appointed day for the taking of any action or the expiration of any right required or
granted herein shall not be a Business Day, then such action may be taken or such right may be exercised on the next succeeding Business
Day.


 


d)            Authorized
Shares.


 


Following the Authorized
Share Increase Date, the Company covenants that, during the period the AIO is outstanding, it will reserve from its authorized and unissued
Common Stock a sufficient number of shares to provide for the issuance of the AIO Shares upon the exercise of any purchase rights under
this AIO. The Company further covenants that its issuance of this AIO shall constitute full authority to its officers who are charged
with the duty of issuing the necessary AIO Shares upon the exercise of the purchase rights under this AIO. The Company will take all such
reasonable action as may be necessary to assure that such AIO Shares may be issued as provided herein without violation of any applicable
law or regulation, or of any requirements of the Trading Market upon which the Common Stock may be listed. The Company covenants that
all AIO Shares which may be issued upon the exercise of the purchase rights represented by this AIO will, upon exercise of the purchase
rights represented by this AIO and payment for such AIO Shares in accordance herewith, be duly authorized, validly issued, fully paid
and nonassessable and free from all taxes, liens and charges created by the Company in respect of the issue thereof (other than taxes
in respect of any transfer occurring contemporaneously with such issue).


 


Except and to the
extent as necessary in connection with the Authorized Share Approval or otherwise waived or consented to by the Holder, the Company shall
not by any action, including, without limitation, amending its certificate of incorporation or through any reorganization, transfer of
assets, consolidation, merger, dissolution, issue or sale of securities or any other voluntary action, avoid or seek to avoid the observance
or performance of any of the terms of this AIO, but will at all times in good faith assist in the carrying out of all such terms and in
the taking of all such actions as may be necessary or appropriate to protect the rights of Holder as set forth in this AIO against impairment.
Without limiting the generality of the foregoing, the Company will (i) not increase the par value of any AIO Shares above the amount
payable therefor upon such exercise immediately prior to such increase in par value, (ii) take all such action as may be necessary
or appropriate in order that the Company may validly and legally issue fully paid and nonassessable AIO Shares upon the exercise of this
AIO and (iii) use commercially reasonable efforts to obtain all such authorizations, exemptions or consents from any public regulatory
body having jurisdiction thereof, as may be, necessary to enable the Company to perform its obligations under this AIO.


 


Before taking any
action which would result in an adjustment in the number of AIO Shares for which this AIO is exercisable or in the Exercise Price, the
Company shall obtain all such authorizations or exemptions thereof, or consents thereto, as may be necessary from any public regulatory
body or bodies having jurisdiction thereof.


 






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e)             Jurisdiction.
All questions concerning the construction, validity, enforcement and interpretation of this AIO shall be determined in accordance with
the provisions of the Purchase Agreement.


 


f)              Restrictions.
The Holder acknowledges that the AIO Shares acquired upon the exercise of this AIO, if not registered, and the Holder does not utilize
cashless exercise, will have restrictions upon resale imposed by state and federal securities laws.


 


g)             Nonwaiver
and Expenses. No course of dealing or any delay or failure to exercise any right hereunder on the part of Holder shall operate as
a waiver of such right or otherwise prejudice the Holder’s rights, powers or remedies. Without limiting any other provision of this
AIO or the Purchase Agreement, if the Company willfully and knowingly fails to comply with any provision of this AIO, which results in
any material damages to the Holder, the Company shall pay to the Holder such amounts as shall be sufficient to cover any costs and expenses
including, but not limited to, reasonable attorneys’ fees, including those of appellate proceedings, incurred by the Holder in collecting
any amounts due pursuant hereto or in otherwise enforcing any of its rights, powers or remedies hereunder.


 


h)             Notices.
Any notice, request or other document required or permitted to be given or delivered to the Holder by the Company shall be delivered to
the address for the Holder in the Warrant Register.


 


i)              Limitation
of Liability. No provision hereof, in the absence of any affirmative action by the Holder to exercise this AIO to purchase AIO Shares,
and no enumeration herein of the rights or privileges of the Holder, shall give rise to any liability of the Holder for the purchase price
of any Common Stock or as a stockholder of the Company, whether such liability is asserted by the Company or by creditors of the Company.


 


j)              Remedies.
The Holder, in addition to being entitled to exercise all rights granted by law, including recovery of damages, will be entitled to specific
performance of its rights under this AIO. The Company agrees that monetary damages would not be adequate compensation for any loss incurred
by reason of a breach by it of the provisions of this AIO and hereby agrees to waive and not to assert the defense in any action for specific
performance that a remedy at law would be adequate.


 


k)             Successors
and Assigns. Subject to applicable securities laws, this AIO and the rights and obligations evidenced hereby shall inure to the benefit
of and be binding upon the successors and permitted assigns of the Company and the successors and permitted assigns of Holder. The provisions
of this AIO are intended to be for the benefit of any Holder from time to time of this AIO and shall be enforceable by the Holder or holder
of AIO Shares.


 






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l)              Amendment.
This AIO may be modified or amended or the provisions hereof waived with the written consent of the Company and the Holder.


 


m)           Severability.
Wherever possible, each provision of this AIO shall be interpreted in such manner as to be effective and valid under applicable law, but
if any provision of this AIO shall be prohibited by or invalid under applicable law, such provision shall be ineffective to the extent
of such prohibition or invalidity, without invalidating the remainder of such provisions or the remaining provisions of this AIO.


 


n)            Headings.
The headings used in this AIO are for the convenience of reference only and shall not, for any purpose, be deemed a part of this AIO.


 


********************


 


(Signature Page Follows)


 






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IN WITNESS WHEREOF, the Company
has caused this AIO to be executed by its officer thereunto duly authorized as of the date first above indicated.


 


	 	scopus biopharma, inc.
	 	 
	 	 
	 	By:	 
	 	 	Name:
	 	 	Title: 


 







    17


     


    

 


NOTICE OF EXERCISE


 


To:        scopus
biopharma, inc.


 


(1)  The
undersigned hereby elects to purchase ________ AIO Shares of the Company pursuant to the terms of the attached AIO (only if exercised
in full), and tenders herewith payment of the exercise price in full, together with all applicable transfer taxes, if any.


 


(2)  Payment
shall take the form of (check applicable box):


 


 ̈
in lawful money of the United States; or


 


   ̈ if permitted the cancellation of
such number of AIO Shares as is necessary, in accordance with the formula set forth in subsection 2(c), to exercise this AIO with respect
to the maximum number of AIO Shares purchasable pursuant to the cashless exercise procedure set forth in subsection 2(c).


 


(3)  Please
issue said AIO Shares in the name of the undersigned or in such other name as is specified below:


 


_______________________________


 


The AIO Shares shall be delivered to the following
DWAC Account Number:


 


_______________________________


 


_______________________________


 


_______________________________


 


(4)  Accredited Investor.
The undersigned is an “accredited investor” as defined in Regulation D promulgated under the Securities Act of 1933, as amended.


 


[SIGNATURE
OF HOLDER]


 


	Name of Investing Entity: 	 






	Signature of Authorized Signatory of Investing Entity:	 






	Name of Authorized Signatory: 	 






	Title of Authorized Signatory:	 






	Date:	 



 






    


     


    

 


EXHIBIT B


 


ASSIGNMENT FORM


 


(To assign the foregoing AIO, execute this
form and supply required information. Do not use this form to purchase shares.)


 


FOR VALUE RECEIVED, the foregoing AIO and all rights evidenced thereby
are hereby assigned to





 


	Name:	
	 	(Please Print)
	 	 
	Address:	
	   	(Please Print)
	 	 
	Phone Number:	 
	 	 
	Email Address:	 
	 	 
	Dated: _______________ __, ______	 
	 	 
	Holder’s Signature:                                                     	 
	 	 
	Holder’s Address: