-1-


 


Exhibit
4.4





 


IN
WITNESS WHEREOF, the Corporation has caused this Warrant to be executed by a duly authorized officer.


 


DATED
for reference this ●th day of February, 2021.


 





	 	XORTX THERAPEUTICS INC.
	 	 	 
	 	Per:	 
	 	 	Authorized Signatory




 


(See
terms and conditions attached hereto)


 




     


    -2- 


    

 


SCHEDULE
"A" 


TERMS
AND CONDITIONS


 


Terms
and Conditions attached to the Warrant issued by XORTX Therapeutics Inc. and dated for reference February
●, 2021.


 


ARTICLE
1

INTERPRETATION


 


		1.1	Definitions



 


In
these Terms and Conditions, unless there is something in the subject matter or context inconsistent therewith:


 


		(a)	"Common
                                         Shares" means the common shares in the capital of the Corporation to be issued
                                         pursuant to the exercise of Warrants;



 


		(b)	"Corporation"
                                         means XORTX Therapeutics Inc. unless and until a successor corporation shall occur
                                         in the manner prescribed in Article 6, and thereafter "Corporation" shall mean
                                         such successor corporation;



 


		(c)	"Corporation's
                                         Auditors" means an independent firm of accountants duly appointed as auditors
                                         of the Corporation;



 


		(d)	"Exchange"
                                         means the Canadian Securities Exchange or such other stock exchange on which the
                                         Corporation's Common Shares are listed and posted for trading;



 


		(e)	"Exercise
                                         Price" means the price of $0.40 per common share;



 


		(f)	"Expiry
                                         Time" means 4:30 p.m. (Calgary time) on February
                                         ●, 2024, unless this Warrant is earlier terminated under the provisions
                                         of Section 3.5 below;



 


		(g)	"herein",
                                         "hereby" and similar expressions refer to these Terms and Conditions as
                                         the same may be amended or modified from time to time; and the expression "Article"
                                         and "Section" followed by a number refer to the specified Article or Section
                                         of these Terms and Conditions;



 


		(h)	"Issue
                                         Date" means the issue date of the Warrant shown on the face page of the Warrant
                                         Certificate;



 


		(i)	"person"
                                         means an individual, corporation, partnership, trustee or any unincorporated organization
                                         and words importing persons have a similar meaning;



 


		(j)	“Up-listing”
                                         means the listing (or co-listing) for trading of the Common Shares on a national securities
                                         exchange in the United States of America;



 


		(k)	"Warrant"
                                         means the warrant to acquire Common Shares evidenced by the Warrant Certificate;
                                         and



 






     


    -3- 


    

 


		(l)	"Warrant
                                         Certificate" means the certificate to which these Terms and Conditions are attached.



 


		1.2	Interpretation
                                         Not Affected by Headings



 


		(a)	The
                                         division of these Terms and Conditions into Articles and Sections, and the insertion
                                         of headings are for convenience of reference only and shall not affect the construction
                                         or interpretation thereof.



 


		(b)	Words
                                         importing the singular number include the plural and vice versa and words importing the
                                         masculine gender include the feminine and neuter genders.



 


		1.3	Applicable
                                         Law



 


The
terms hereof and of the Warrant shall be construed in accordance with the laws of the Province of Alberta and the laws of Canada
applicable thereto.


 


ARTICLE
2 


ISSUE
OF WARRANT


 


		2.1	Issue
                                         of Warrants



 


That
number of Warrants set out on the Warrant Certificate are hereby created and authorized to be issued.


 


		2.2	Additional
                                         Warrants



 


Subject
to any other written agreement between the Corporation and the Warrantholder, the Corporation may at any time and from time to
time undertake further equity or debt financing and may issue additional Common Shares, warrants or grant options or similar rights
to purchase Common Shares to any person.


 


		2.3	Issue
                                         in Substitution for Lost Warrants



 


If
the Warrant Certificate becomes mutilated, lost, destroyed or stolen:


 


		(a)	the
                                         Corporation shall issue and deliver a new Warrant Certificate of like date and tenor
                                         as the one mutilated, lost, destroyed or stolen, in exchange for and in place of and
                                         upon cancellation of such mutilated, lost, destroyed or stolen Warrant Certificate; and



 


		(b)	the
                                         holder shall bear the cost of the issue of a new Warrant Certificate hereunder and in
                                         the case of the loss, destruction or theft of the Warrant Certificate, shall furnish
                                         to the Corporation such evidence of Joss, destruction, or theft as shall be satisfactory
                                         to the Corporation in its discretion and the Corporation may also require the holder
                                         to furnish indemnity in an amount and form satisfactory to the Corporation in its discretion,
                                         and shall pay the reasonable charges of the Corporation in connection therewith.



 


		2.4	Warrantholder
                                         Not a Shareholder



 


The
Warrant shall not constitute the holder a shareholder of the Corporation, nor entitle it to any right or interest in respect thereof
except as may be expressly provided in the Warrant.


 






     


    -4- 


    

 


ARTICLE
3 


EXERCISE
OF THE WARRANT


 


		3.1	Method
                                         of Exercise of the Warrant



 


The
right to purchase Common Shares conferred by this Warrant Certificate may be exercised, prior to the Expiry Time, by the holder
surrendering it, with a duly completed and executed exercise form substantially in the form attached hereto as Schedule "B"
and cash or a certified cheque payable to or to the order of the Corporation, at par in Calgary, Alberta, for the Exercise
Price applicable at the time of surrender in respect of the Common Shares subscribed for in lawful money of Canada, to the Corporation.


 


		3.2	Effect
                                         of Exercise of the Warrant



 


		(a)	Upon
                                         due surrender and payment pursuant to Section 3.1 hereof, the Common Shares so subscribed
                                         for shall be issued as fully paid and non-assessable shares and the holder shall become
                                         the holder of record of such Common Shares on the date of such surrender and payment;
                                         and



 


		(b)	Within
                                         five business days of such exercise of any Warrants hereunder, the Corporation shall
                                         forthwith cause the issuance to the holder a certificate for the Common Shares purchased
                                         as aforesaid.



 


		3.3	Subscription
                                         for Less than Entitlement



 


The
holder may subscribe for and purchase a number of Common Shares less than the number which it is entitled to purchase pursuant
to the surrendered Warrant Certificate. In such event, the holder shall receive a Warrant Certificate for the balance of the Common
Shares which it is entitled to purchase pursuant to the Warrant Certificate which were not then purchased.


 


		3.4	Expiration
                                         of the Warrant



 


After
the Expiry Time all rights hereunder shall wholly cease and terminate and the Warrant shall be void and of no effect.


 


		3.5	Forced
                                         Conversion Right



 


If
the volume weighted average price for the Corporation's common shares on the Exchange is greater than $1.20 per share for a period
often (10) consecutive trading days, then the Corporation may give notice to the holders by way of a news release (the "Notice")
notifying such Holder that the Warrants must be exercised within thirty (30) calendar days from the date of delivery of such Notice,
otherwise the Warrants will expire at 4:30 p.m. (Calgary time) on the 30th day after the date of delivery of the Notice.


 






     


    -5- 


    

 


		3.6	Hold
                                         Periods and Legending of Share Certificate



 


If
any of the Warrants are exercised prior to June ●, 2021, the certificates
representing the Common Shares to be issued pursuant to such exercise shall bear the following legend:


 


"UNLESS
PERMITTED UNDER SECURITIES LEGISLATION, THE HOLDER OF THE SECURITIES MUST NOT TRADE THE SECURITIES BEFORE JUNE
●, 2021."


 


“THE
SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED
(THE “U.S. SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. THE HOLDER HEREOF, BY PURCHASING THESE SECURITIES, AGREES
FOR THE BENEFIT OF XORTX THERAPEUTICS INC. (THE “CORPORATION”) THAT SUCH SECURITIES MAY BE OFFERED, SOLD, PLEDGED
OR OTHERWISE TRANSFERRED ONLY: (A) TO THE CORPORATION, (B) OUTSIDE THE UNITED STATES IN ACCORDANCE WITH RULE 904 OF REGULATION
S UNDER THE U.S. SECURITIES ACT (“REGULATION S”), (C) IN ACCORDANCE WITH (1) RULE 144A UNDER THE U.S. SECURITIES ACT
OR (2) RULE 144 UNDER THE U.S. SECURITIES ACT, IF AVAILABLE, OR (D) PURSUANT TO ANOTHER EXEMPTION OR EXCLUSION FROM REGISTRATION
UNDER THE U.S. SECURITIES ACT, AND IN EACH CASE, IN ACCORDANCE WITH ALL APPLICABLE STATE SECURITIES LAWS, AFTER, IN THE CASE OF
TRANSFERS PURSUANT TO CLAUSE (C)(2) OR (D) (OR IF REQUIRED BY THE CORPORATION, OR ITS TRANSFER AGENT, CLAUSE (B)) ABOVE, THE HOLDER
HAS PROVIDED TO THE CORPORATION A LEGAL OPINION OF COUNSEL OF RECOGNIZED STANDING OR OTHER EVIDENCE, REASONABLY SATISFACTORY TO
THE CORPORATION, TO THE EFFECT THAT THE SALE OF SUCH SECURITIES IS NOT REQUIRED TO BE REGISTERED UNDER THE U.S. SECURITIES ACT
OR APPLICABLE STATE SECURITIES LAWS.”; and


 


THESE
SECURITIES MAY NOT CONSTITUTE “GOOD DELIVERY” IN SETTLEMENT OF TRANSACTIONS ON CANADIAN STOCK EXCHANGES.”


 


		3.7	Warrants
                                         for Fractions of Shares



 


To
the extent that the holder is entitled to receive on the exercise or partial exercise of any Warrants, a fraction of a Common
Share, such right may be exercised in respect of such fraction only in combination with another Warrant which in the aggregate
entitle the holder to receive a whole number of Common Shares.


 


ARTICLE
4 


ADJUSTMENTS


 


		4.1	Adjustments



 


The
number of Common Shares purchasable upon the exercise of each Warrant and the Exercise Price shall be subject to adjustment as
follows:


 


		(a)	in
                                         the event the Corporation shall:



 


		(i)	pay
                                         a dividend in Common Shares or make a distribution in Common Shares;



 






     


    -6- 


    

 


		(ii)	subdivide
                                         its outstanding Common Shares;



 


		(iii)	combine
                                         its outstanding Common Shares into a smaller number of Common Shares; or



 


		(iv)	issue
                                         by reclassification of its Common Shares other securities of the Corporation (including
                                         any such reclassification in connection with a consolidation, merger, amalgamation or
                                         other combination in which the Corporation is the surviving corporation), 



 


the
number of Common Shares (or other securities) purchasable upon exercise of each Warrant immediately prior thereto shall be adjusted
so that the Warrantholder shall be entitled to receive the kind and number of Common Shares or other securities of the Corporation
which it would have owned or have been entitled to receive after the happening of any of the events described above, had such
Warrant been exercised immediately prior to the happening of such event or any record date with respect thereto. An adjustment
made pursuant to this subsection (a) shall become effective immediately after the effective date of such event retroactive to
the record date, if any, for such event.


 


[In
addition, at any time prior to or concurrently with an Up-listing, if the Corporation issues or sells any Common Shares at a price
less than the Exercise Price, then as of the close of business on the day of such issuance or sale, the Exercise Price shall be
adjusted to be equal to the price of such issuance or sale (the “Ratchet Protection”).]1
The Warrantholder acknowledges and agrees that the Ratchet Protection shall expire upon completion of any Up-listing.


 


		(b)	In
                                         case the Corporation shall issue rights, options or warrants to all or substantially
                                         all holders of its outstanding Common Shares, without any charge to such holders, entitling
                                         them (for a period within 45 days after the record date mentioned below) to subscribe
                                         for or purchase Common Shares at a price per share which is lower than 95% of the current
                                         market price at the record date mentioned below than the then current market price per
                                         Common Share (as determined in accordance with subsection (d) below), the number of Common
                                         Shares thereafter purchasable upon the exercise of each Warrant shall be determined by
                                         multiplying the number of Common Shares theretofore purchasable upon exercise of each
                                         Warrant by a fraction, of which the numerator shall be the number of Common Shares outstanding
                                         on the date of issuance of such rights, options or warrants plus the number of additional
                                         Common Shares offered for subscription or purchase, and of which the denominator shall
                                         be the number of Common Shares outstanding on the date of issuance of such rights, options
                                         or warrants plus the number of shares which the aggregate offering price of the total
                                         number of Common Shares so offered would purchase at the current market price per Common
                                         Share at such record date. Such adjustment shall be made whenever such rights, options
                                         or warrants are issued, and shall become effective immediately after the record date
                                         for the determination of shareholders entitled to receive such rights, options or warrants.



 





 



1
My understanding was that the warrant exercise price would not ratchet all the way down to the price at which the shares
are issued, since the Exercise Price is CDN $0.40, as opposed to CDN $0.25. It would ratchet down to the same proportion that
CDN $0.40 is to CDN $0.25. Is that no longer the case? 


 






     


    -7- 


    

 


		(c)	In
                                         case the Corporation shall distribute to all or substantially all holders of its Common
                                         Shares evidences of its indebtedness or assets (excluding cash dividends or distributions
                                         payable out of consolidated earnings or earned surplus and dividends or distributions
                                         referred to in subsection (a) above or in subsection (d) below or rights, options or
                                         warrants, or convertible or exchangeable securities containing the right to subscribe
                                         for or purchase Common Shares (excluding those referred to in subsection (b) above)),
                                         then in each case the number of Common Shares thereafter purchasable upon the exercise
                                         of each Warrant shall be determined by multiplying the number of Common Shares theretofore
                                         purchasable upon the exercise of each Warrant by a fraction, of which the numerator shall
                                         be the then current market price per Common Share (as determined in accordance with subsection
                                         (d) below) on the date of such distribution, and of which the denominator shall be the
                                         then current market price per Common Share less the then fair value (as determined by
                                         the board of directors of the Corporation, acting reasonably) of the portion of the assets
                                         or evidences of indebtedness so distributed or of such subscription rights, options or
                                         warrants, or of such convertible or exchangeable securities applicable to one Common
                                         Share. Such adjustment shall be made whenever any such distribution is made, and shall
                                         become effective on the date of distribution retroactive to the record date for the determination
                                         of shareholders entitled to receive such distribution.



 


In
the event of the distribution by the Corporation to all or substantially all of the holders of its Common Shares of shares of
a subsidiary or securities convertible or exercisable for such shares, then in lieu of an adjustment in the number of Common Shares
purchasable upon the exercise of each Warrant, the Warrantholder of each Warrant, upon the exercise thereof, shall receive from
the Corporation, such subsidiary or both, as the Corporation shall reasonably determine, the shares or other securities to which
such Warrantholder would have been entitled if such Warrantholder had exercised such Warrant immediately prior thereto, all subject
to further adjustment as provided in this section 4.1 provided, however, that no adjustment in respect of dividends or interest
on such shares or other securities shall be made during the term of a Warrant or upon the exercise of a Warrant.


 


		(d)	For
                                         the purpose of any computation under subsections (b) and (c) of this section 4.1, the
                                         current market price per Common Share at any date shall be the weighted average price
                                         per Common Share for twenty-five (25) consecutive trading days, commencing not more than
                                         45 trading days before such date on the stock exchange on which the Common Shares are
                                         then traded; provided if the Common Shares are then traded on more than one stock exchange,
                                         then on the stock exchange on which the largest volume of Common Shares were traded during
                                         such twenty-five (25) consecutive trading day period. The weighted average price per
                                         Common Share shall be determined by dividing the aggregate sale price of all Common Shares
                                         sold on such exchange or market, as the case may be, during the said twenty-five (25)
                                         consecutive trading days by the total number of shares so sold. For purposes of this
                                         subsection (d), trading day means, with respect to a stock exchange, a day on which such
                                         exchange is open for the transaction of business. Should the Common Shares not be listed
                                         on any stock exchange the current market price per Common Share at any date shall be
                                         determined by the board of directors of the Corporation, acting reasonably.



 






     


    -8- 


    

 


		(e)	In
                                         any case in which this Article 4 shall require that any adjustment in the Exercise Price
                                         be made effective immediately after a record date for a specified event, the Corporation
                                         may elect to defer until the occurrence of the event the issuance, to the holder of any
                                         Warrant exercised after that record date, of the Common Shares and other shares of the
                                         Corporation, if any, issuable upon the exercise of the Warrant over and above the Common
                                         Shares and other shares of the Corporation; provided, however, that the Corporation shall
                                         deliver to the holder an appropriate instrument evidencing the holder's right to receive
                                         such additional shares upon the occurrence of the event requiring such adjustment.



 


		(f)	No
                                         adjustment in the number of Common Shares purchasable hereunder shall be required unless
                                         such adjustment would require an increase or decrease of at least one percent (1%) in
                                         the number of Common Shares purchasable upon the exercise of each Warrant; provided,
                                         however, that any adjustments which by reason of this subsection (f) are not required
                                         to be made shall be carried forward and taken into account in any subsequent adjustment.
                                         All calculations shall be made to the nearest one-hundredth of a share.



 


		(g)	Wherever
                                         the number of Common Shares purchasable upon the exercise of each Warrant is adjusted,
                                         as herein provided, the Exercise Price payable upon exercise of each Warrant shall be
                                         adjusted by multiplying such Exercise Price immediately prior to such adjustment by a
                                         fraction, of which the numerator shall be the number of Common Shares purchasable upon
                                         the exercise of such Warrant immediately prior to such adjustment, and of which the denominator
                                         shall be the number of Common Shares purchasable immediately thereafter.



 


		(h)	No
                                         adjustment in the number of Common Shares purchasable upon the exercise of each Warrant
                                         need by made under subsections (b) and (c) if, the Corporation issues or distributes
                                         to the Warrantholder the rights, options, warrants, or convertible or exchangeable securities,
                                         or evidences of indebtedness or assets referred to in those subsections which the Warrantholder
                                         would have been entitled to receive had the Warrants been exercised prior to the happening
                                         of such event or the record date with respect thereto.



 


		(i)	In
                                         the event that at any time, as a result of an adjustment made pursuant to subsection
                                         (a) above, the Warrantholder shall become entitled to purchase any securities of the
                                         Corporation other than Common Shares, thereafter the number of such other shares so purchasable
                                         upon exercise of each Warrant and the Exercise Price of such shares shall be subject
                                         to adjustment from time to time in a manner and on terms as nearly equivalent as practicable
                                         to the provisions with respect to the Common Shares contained in subsections (a) through
                                         (h), inclusive, above, and the provisions of sections 4.2 through 4.4, inclusive, of
                                         this Article 4 with respect to the Common Shares, shall apply on like terms to any such
                                         other securities.



 






     


    -9- 


    

 


		(j)	Upon
                                         the expiration of any rights, options, warrants or conversion or exchange privileges
                                         granted to all or substantially all of the holders of the Corporation's outstanding Common
                                         Shares, if any thereof shall not have been exercised, the Exercise Price and the number
                                         of Common Shares purchasable upon the exercise of each Warrant shall, upon such expiration,
                                         be readjusted and shall thereafter be such as it would have been had it been originally
                                         adjusted (or had the original adjustment not been required, as the case may be) as if:



 


		(i)	the
                                         only Common Shares so issued were the Common Shares, if any, actually issued or sold
                                         upon the exercise of such rights, options, warrants or conversion or exchange rights;
                                         and



 


		(ii)	such
                                         Common Shares, if any, were issued or sold for the consideration actually received by
                                         the Corporation upon such exercise plus the aggregate consideration, if any, actually
                                         received by the Corporation for the issuance, sale or grant of all such rights, options,
                                         warrants or conversion or exchange rights whether or not exercised;



 


provided
further, that no such readjustment shall have the effect of increasing the Exercise Price or decreasing the number of Common Shares
purchasable upon the exercise of each Warrant by an amount in excess of the amount of the adjustment initially made with respect
to the issuance, sale or grant of such rights, options, warrants or conversion or exchange rights.


 


		4.2	Voluntary
                                         Adjustment by the Corporation



 


Subject
to requisite Exchange approval, the Corporation may, at its option, at any time during the term of the Warrants, reduce the then
current Exercise Price to any amount deemed appropriate by the Board of Directors of the Corporation.


 


		4.3	Notice
                                         of Adjustment



 


Whenever
the number of Common Shares purchasable upon the exercise of each Warrant or the Exercise Price of such Common Shares is adjusted,
as herein provided, the Corporation shall promptly send to the Warrantholder by first class mail, postage prepaid, notice of such
adjustment or adjustments.


 


		4.4	No
                                         Adjustment for Dividends



 


Except
as provided in section 4.1 of this Article 4, no adjustment in respect of any dividends shall be made during the term of a Warrant
or upon the exercise of a Warrant.


 






     


    -10- 


    

 


		4.5	Preservation
                                         of Purchase Rights Upon Merger, Consolidation, etc.



 


In
connection with any consolidation of the Corporation with, or amalgamation or merger of the Corporation with or into, another
corporation (including, without limitation, pursuant to a "takeover bid", "tender offer" or other acquisition
of all or substantially all of the outstanding Common Shares) or in case of any sale, transfer or lease to another corporation
of all or substantially all the property of the Corporation, the Corporation or such successor or purchasing corporation, as the
case may be, shall execute with the Warrantholder an agreement that the Warrantholder shall have the right thereafter, upon payment
of the Exercise Price in effect immediately prior to such action, to purchase upon exercise of each Warrant the kind and amount
of shares and other securities and property which it would have owned or have been entitled to receive after the happening of
such consolidation, amalgamation, merger, sale, transfer or lease had such Warrant been exercised immediately prior to such action,
and the Warrantholder shall be bound to accept such shares and other securities and property in lieu of the Common Shares to which
it was previously entitled; provided, however, that no adjustment in respect of dividends, interest or other income on or from
such shares or other securities and property shall be made during the term of a Warrant or upon the exercise of a Warrant. Any
such agreement shall provide for adjustments, which shall be as nearly equivalent as may be practicable to the adjustments provided
for in this Schedule "A". The provisions of this Article 4 shall similarly apply to successive consolidations, mergers,
amalgamation, sales, transfers or leases.


 


		4.6	Determination
                                         of Adjustments



 


If
any questions shall at any time arise with respect to the Exercise Price, such question shall be conclusively determined by the
Corporation's Auditors, or, if they decline to so act, any other firm of Chartered Accountants, in Calgary, Alberta or Vancouver,
British Columbia, that the Corporation may designate and the Warrantholder, acting reasonably, may approve, and who shall have
access to all appropriate records and such determination shall be binding upon the Corporation and the holder.


 


ARTICLE
5 


COVENANTS
BY THE COMPANY


 


5.1       Reservation
of Common Shares


 


The
Corporation will reserve and there will remain unissued out of its authorized capital a sufficient number of Common Shares to
satisfy the rights of acquisition provided for in the Warrant Certificate.


 


ARTICLE
6 


MERGER
AND SUCCESSORS


 


		6.1	Corporation
                                         May Consolidate, etc. on Certain Terms



 


Nothing
herein contained shall prevent any consolidation, amalgamation or merger of the Corporation with or into any other corporation
or corporations, or a conveyance or transfer of all or substantially all the properties and estates of the Corporation as an entirety
to any corporation lawfully entitled to acquire and operate same, provided, however, that the corporation formed by such consolidation,
amalgamation or merger or which acquires by conveyance or transfer all or substantially all the properties and estates of the
Corporation as an entirety shall, simultaneously with such amalgamation, merger, conveyance or transfer, assume the due and punctual
performance and observance of all the covenants and conditions hereof to be performed or observed by the Corporation.


 






     


    -11- 


    

 


		6.2	Successor
                                         Corporation Substituted



 


In
case the Corporation, pursuant to section 6.1 shall be consolidated, amalgamated or merged with or into any other corporation
or corporations or shall convey or transfer all or substantially all of its properties and estates as an entirety to any other
corporation, the successor corporation formed by such consolidation or amalgamation, or into which the Corporation shall have
been consolidated, amalgamated or merged or which shall have received a conveyance or transfer as aforesaid, shall succeed to
and be substituted for the Corporation hereunder and such changes in phraseology and form (but not in substance) may be made in
the Warrant Certificate and herein as may be appropriate in view of such amalgamation, merger or transfer.


 


ARTICLE
7 


AMENDMENTS


 


		7.1	Amendment,
etc



 


This
Warrant Certificate may only be amended by a written instrument signed by the parties hereto.


 


ARTICLE
8 


MISCELLANEOUS


 


		8.1	Time



 


Time
is of the essence of the terms of this certificate.


 


		8.2	Notice



 


Any
notice given under or pursuant to this Warrant Certificate will be given in writing and must be delivered, or mailed by prepaid
post, and addressed to the party to which notice is to be given at the address of the party set out on page one, or at another
address designated by the party in writing. If notice is delivered, it will be deemed to have been given at the time of delivery.
If notice is mailed, it will be deemed to have been received on the fourth business day after and excluding the date of mailing.


 


		8.3	Transfer
                                         of Warrants



 


The
Warrants represented by this certificate are not transferable.


 




     


     


    

 


SCHEDULE
"B" 


EXERCISE
FORM


 


TO:
 XORTX Therapeutics Inc.


 


Terms
which are not otherwise defined herein shall have the meanings ascribed to such terms in the Warrant Certificate held by the undersigned
and issued by XORTX Therapeutics Inc. (the "Corporation").


 


The
undersigned hereby exercises the right to acquire  _______  Common Shares of the Corporation in accordance with and
subject to the provisions of such Warrant Certificate and herewith makes payment of the purchase price in full for the said number
of Common Shares.


 


The
Common Shares are to be issued as follows:


 





	Name:	 
	 	 
	Address in full:	 
	 	 
	 	 










 


DATED
this________ day of ______________,  _______________ .


  


 


	Signature Guaranteed	 	(Signature
    of Warrantholder)
	 	 	 
	

         
	 	 
	 	 	Print full name
	 	 	 
	 	 	Print full address




 


Instructions:


 


		1.	The
                                         registered holder may exercise its right to receive Common Shares by completing this
                                         form and surrendering this form and the Warrant Certificate representing the Warrants
                                         being exercised to the Corporation.



 


		2.	If
                                         the Exercise Form indicates that Common Shares are to be issued to a person or persons
                                         other than the registered holder of the Warrant Certificate, the signature of such holder
                                         of the Exercise Form must be guaranteed by an authorized officer of a chartered bank,
                                         trust company or an investment dealer who is a member of a recognized stock exchange.



 


		3.	If
                                         the Exercise Form is signed by a trustee, exercise, administrator, curator, guardian,
                                         attorney, officer of a corporation or any person acting in a judiciary or representative
                                         capacity, the certificate must be accompanied by evidence of authority to sign satisfactory
                                         to the Corporation.