Exhibit 10.13

PROMISSORY NOTE



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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---------- |  | ---------- |  | -------- |  | ----------- |  | ------- |  | ------- |  | --------
|Principal                                                                                                                                                                                                                     |  | Loan Date  |  | Maturity   |  | Loan No. |  | Call / Coll |  | Account |  | Officer |  | Initials
|$800,000.00                                                                                                                                                                                                                   |  | 09-30-2008 |  | 09-30-2013 |  | 94736    |  | 501         |  |         |  | 307     |  | LOGO    
|References in the boxes above are for Lenders use only and do not limit the applicability of this document to any 
particular loan or item. Any item above containing ***** has been omitted due to text length limitations.



|          |  |                     |  |         |  |                                
|--------- |  | ------------------- |  | ------- |  | -------------------------------
|Borrower: |  | GEOPHARMA, INC.     |  | Lender: |  | First Community Bank of America
|          |  | 6950 BRYAN DAIRY RD |  |         |  | St. Petersburg Office          
|          |  | LARGO, FL 33777     |  |         |  | 6100 4th Street North          
|          |  |                     |  |         |  | St. Petersburg, FL 33703       
|          |  |                     |  |         |  | (727) 520-8837                 









|                                 |  |                                    
|-------------------------------- |  | -----------------------------------
|Principal Amount:    $800,000.00 |  | Date of Note:    September 30, 2008

PROMISE TO PAY, GEOPHARMA, INC. (Borrower) promises to pay to First Community
Bank of America (Lender), or order, in lawful money of the United States of America, the principal amount of Eight Hundred Thousand & 00/100 Dollars ($800,000.00), together with interest on the unpaid principal balance from
September 30, 2008, until paid in full.

PAYMENT. Borrower will pay this loan in accordance with the following payment
schedule, which calculates interest on the unpaid principal balances as described in the INTEREST CALCULATION METHOD paragraph using the interest rates described in this paragraph: 6 monthly consecutive interest payments, beginning
October 30, 2008, with interest calculated on the unpaid principal balances using an interest rate of 6.500% per annum based on a year of 360 days; 53 monthly consecutive principal and interest payments of $17,165.78 each, beginning
April 30, 2009, with interest calculated on the unpaid principal balances using an interest rate of 6.500% per annum based on a year of 360 days; and one principal and interest payment of $17,165.94 on September 30, 2013, with interest
calculated on the unpaid principal balances using an interest rate of 6.500% per annum based on a year of 360 days. This estimated final payment is based on the assumption that all payments will be made exactly as scheduled; the actual final
payment will be for all principal and accrued interest not yet paid, together with any other unpaid amounts under this Note. Unless otherwise agreed or required by applicable law, payments will be applied first to any accrued unpaid interest; then
to principal; then to any late charges; and then to any unpaid collection costs. Borrower will pay Lender at Lenders address shown above or at such other place as Lender may designate in writing.

INTEREST CALCULATION METHOD. Interest on this Note is computed on a 365/360 basis; that is, by applying the ratio of the interest rate over a
year of 360 days, multiplied by the outstanding principal balance, multiplied by the actual number of days the principal balance is outstanding. All interest payable under this Note is computed using this method.

PREPAYMENT. Borrower agrees that all loan fees and other prepaid finance charges are earned fully as of the date of the loan and will not be
subject to refund upon early payment (whether voluntary or as a result of default), except as otherwise required by law. Except for the foregoing, Borrower may pay without penalty all or a portion of the amount owed earlier than it is due. Early
payments will not, unless agreed to by Lender in writing, relieve Borrower of Borrowers obligation to continue to make payments under the payment schedule. Rather, early payments will reduce the principal balance due and may result in
Borrowers making fewer payments. Borrower agrees not to send Lender payments marked paid in full, without recourse, or similar language. If Borrower sends such a payment, Lender may accept it without losing any of
Lenders rights under this Note, and Borrower will remain obligated to pay any further amount owed to Lender. All written communications concerning disputed amounts, including any check or other payment instrument that indicates that the
payment constitutes payment in full of the amount owed or that is tendered with other conditions or limitations or as full satisfaction of a disputed amount must be mailed or delivered to: First Community Bank of America, Loan Operations
Center, 7441 114th Avenue North Largo, FL 33773.

LATE CHARGE. If a payment is 10 days or more late, Borrower will be charged
5.000% of the unpaid portion of the regularly scheduled payment or $5.00, whichever is greater.

INTEREST AFTER DEFAULT. Upon
default, including failure to pay upon final maturity, the interest rate on this Note shall be increased to 18.000% per annum based on a year of 360 days. However, in no event will the interest rate exceed the maximum interest rate limitations under
applicable law.

DEFAULT. Each of the following shall constitute an event of default (Event of Default) under this
Note:

Payment Default. Borrower fails to make any payment when due under this Note.

Other Defaults. Borrower fails to comply with or to perform any other term, obligation, covenant or condition contained in this Note or in any of
the related documents or to comply with or to perform any term, obligation, covenant or condition contained in any other agreement between Lender and Borrower.

Default in Favor of Third Parties. Borrower or any Grantor defaults under any loan, extension of credit, security agreement, purchase or sales agreement, or any other agreement, in favor of any other
creditor or person that may materially affect any of Borrowers property or Borrowers ability to repay this Note or perform Borrowers obligations under this Note or any of the related documents.

False Statements. Any warranty, representation or statement made or furnished to Lender by Borrower or on Borrowers behalf under this Note
or the related documents is false or misleading in any material respect, either now or at the time made or furnished or becomes false or misleading at any time thereafter.

Insolvency. The dissolution or termination of Borrowers existence as a going business, the insolvency of Borrower, the appointment of a receiver for any part of Borrowers property, any
assignment for the benefit of creditors, any type of creditor workout, or the commencement of any proceeding under any bankruptcy or insolvency laws by or against Borrower.

Creditor or Forfeiture Proceedings. Commencement of foreclosure or forfeiture proceedings, whether by judicial proceeding, self-help, repossession or any other method, by any creditor of Borrower or by
any governmental agency against any collateral securing the loan. This includes a garnishment of any of Borrowers accounts, including deposit accounts, with Lender. However, this Event of Default shall not apply if there is a good faith
dispute by Borrower as to the validity or reasonableness of the claim which is the basis of the creditor or forfeiture proceeding and if Borrower gives Lender written notice of the creditor or forfeiture proceeding and deposits with Lender monies or
a surety bond for the creditor or forfeiture proceeding, in an amount determined by Lender, in its sole discretion, as being an adequate reserve or bond for the dispute.

Events Affecting Guarantor. Any of the preceding events occurs with respect to any guarantor, endorser, surety, or accommodation party of any of the indebtedness or any guarantor, endorser, surety, or
accommodation party dies or becomes incompetent, or revokes or disputes the validity of, or liability under, any guaranty of the indebtedness evidenced by this Note.

Change In Ownership. Any change in ownership of twenty-five percent (25%) or more of the common stock of Borrower.

Adverse Change. A material adverse change occurs in Borrowers financial condition, or Lender believes the prospect of payment or performance of this Note is impaired.

Insecurity. Lender in good faith believes itself insecure.

Cure Provisions. If any default, other than a default in payment is curable and if Borrower has not been given a notice of a breach of the same provision of this Note within the proceeding twelve (12)
months, it may be cured if Borrower, after receiving written notice from Lender demanding cure of such default: (1) cures the default within fifteen (15) days; or (2) if the cure requires more than fifteen (15) days, immediately initiates steps
which Lender deems in Lenders sole discretion to be sufficient to cure the default and thereafter continues and completes all reasonable and necessary steps sufficient to produce compliance as soon as reasonably practical.

LENDERS RIGHTS. Upon default, Lender may declare the entire unpaid principal balance under this Note and all accrued unpaid interest
immediately due, and then Borrower will pay that amount.

ATTORNEYS FEES; EXPENSES. Lender may hire or pay someone else
to help collect this Note if Borrower does not pay. Borrower will pay Lender the amount of these costs and expenses, which includes, subject to any limits under applicable law, Lenders reasonable attorneys fees and Lenders legal
expenses whether or not there is a lawsuit, including reasonable attorneys fees and legal expenses for bankruptcy proceedings (including efforts to modify or vacate any automatic stay or injunction), and appeals. If not prohibited by
applicable law, Borrower also will pay any court costs, in addition to all other sums provided by law.

JURY WAIVER. Lender and
Borrower hereby waive the right to any jury trial in any action, proceeding, or counterclaim brought by either Lender or Borrower against the other.

GOVERNING LAW. This Note will be governed by federal law applicable to Lender and, to the extent not preempted by federal law, the laws of the State of Florida without regard to its conflicts of law provisions. This Note has
been accepted by Lender in the State of Florida.

CHOICE OF VENUE. If there is a lawsuit, Borrower agrees upon Lenders
request to submit to the jurisdiction of the courts of Pinellas County, State of Florida.



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|               |  | PROMISSORY NOTE |  |       
|Loan No: 94736 |  | (Continued)     |  | Page 2







DISHONORED ITEM FEE. Borrower will pay a
fee to Lender of $25.00 if Borrower makes a payment on Borrowers loan and the check or preauthorized charge with which Borrower pays is later dishonored.

RIGHT OF SETOFF. To the extent permitted by applicable law, Lender reserves a right of setoff in all Borrowers account with Lender {whether checking, savings, or some other account}. This includes
all accounts Borrower holds jointly with someone else and all accounts Borrower may open in the future. However, this does not include any IRA or Keogh accounts, or any trust accounts for which setoff would be prohibited by law. Borrower authorizes
Lender, to the extent permitted by applicable law, to charge or setoff all sums owing on the indebtedness against any and all such accounts, and, at Lenders option, to administratively freeze all such accounts to allow Lender to protect
Lenders charge and setoff rights provided in this paragraph.

COLLATERAL. Borrower acknowledges this Note is secured by
the following collateral described in the security instruments listed herein:



| | (A) | equipment described in a Commercial Security Agreement dated September 30, 2008.
| | --- | --------------------------------------------------------------------------------



| | (B) | certificates of deposit described in an Assignment of Deposit Account dated September 30, 2008.
| | --- | -----------------------------------------------------------------------------------------------

LINE OF CREDIT. This Note evidences a Straight Line of Credit with a Restricted Draw Period. Once the total amount of available principal has
been advanced, Borrower is not entitled to further loan advances. Available funds under this Line of Credit may only be advanced during the first 6 months of the loan. If Borrower makes a principal reduction on the loan, those funds may not be
readvanced. Advances under this Note may be requested either orally or in writing by Borrower or by Borrowers authorized agent. All oral requests shall be confirmed in writing on the day of the request, on forms acceptable to Lender.

SUCCESSOR INTERESTS. The terms of this Note shall be binding upon Borrower, and upon Borrowers heirs, personal representatives,
successors and assigns, and shall inure to the benefit of Lender and its successors and assigns.

NOTIFY US OF INACCURATE
INFORMATION WE REPORT TO CONSUMER REPORTING AGENCIES. Please notify us if we report any inaccurate information about your account(s) to a consumer reporting agency. Your written notice describing the specific inaccuracy(ies) should be sent to us at
the following address: First Community Bank of America Loan Operations Center 7441 114th Avenue North Largo, FL 33773.

GENERAL
PROVISIONS. If any part of this Note cannot be enforced, this fact will not affect the rest of the Note. Borrower does not agree or intend to pay, and Lender does not agree or intend to contract for, charge, collect, take, reserve or receive
(collectively referred to herein as charge or collect), any amount in the nature of interest or in the nature of a fee for this loan, which would in any way or event including demand, prepayment, or acceleration) cause Lender to charge
or collect more for this loan than the maximum Lender would be permitted to charge or collect by federal law or the law of the State of Florida (as applicable). Any such excess interest or unauthorized fee shall, instead of anything stated to the
contrary, be applied first to reduce the principal balance of this loan, and when the principal has been paid in full, be refunded to Borrower. Lender may delay or forgo enforcing any of its rights or remedies under this Note without losing them.
Borrower and any other person who signs, guarantees or endorses this Note, to the extent allowed by law, waive presentment, demand for payment, and notice of dishonor. Upon any change in the terms of this Note, and unless otherwise expressly stated
in writing, no party who signs this Note, whether as maker, guarantor, accommodation maker or endorser, shall be released from liability. All such parties agree that Lender may renew or extend (repeatedly and for any length of time) this loan or
release any party or guarantor or collateral; or impair, fail to realize upon or perfect Lenders security interest in the collateral; and take any other action deemed necessary by Lender without the consent of or notice to anyone. All such
parties also agree that Lender may modify this loan without the consent of or notice to anyone other than the party with whom the modification is made. The obligations under this Note are joint and several.

PRIOR TO SIGNING THIS NOTE, BORROWER READ AND UNDERSTOOD ALL THE PROVISIONS OF THIS NOTE, BORROWER AGREES TO THE TERMS OF THE NOTE.

BORROWER ACKNOWLEDGES RECEIPT OF A COMPLETED COPY OF THIS PROMISSORY NOTE.

BORROWER:



| |  |                 |  |                                          
| |  | --------------- |  | -----------------------------------------
| |  | GEOPHARMA, INC.
| |  |                
| |  | By:             |  | /s/
CAROL DORE-FALCONE                   
| |  |                 |  | CAROL DORE-FALCONE, Vice President/CFO of
| |  |                 |  | GEOPHARMA, INC.                          







Florida Documentary Stamp Tax

Florida documentary stamp tax required by law in the amount of $2,450.00 has been paid or will be paid directly to the Department of Revenue.
Certificate of Registration No. 592478050.