Exhibit 3.22

Michigan Department of Licensing and Regulatory Affairs

Filing Endorsement

This is to Certify that the CERTIFICATE OF AMENDMENT—CORPORATION

for

SERGEANT’S PET CARE PRODUCTS, INC.

ID NUMBER: 04703J

received by facsimile transmission on September 26, 2012 is hereby endorsed Filed on September 26, 2012 by the Administrator.

The document is effective on the date filed, unless a subsequent effective date within 90 days after received date is stated in the document.

	In testimony whereof, I have hereunto set my hand and affixed the Seal of the Department, in the City of Lansing, this 26TH day of September, 2012.

Director

Bureau of Commercial Services

Sent by Facsimile Transmission 12270

MICHIGAN DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS BUREAU OF COMMERCIAL SERVICES Date Received This document is effective on the date filed, unless a subsequent effective date within 00 days after received date is stated in the document. Name Warner Norcross & Judd LLP Attn: M, Daniel Address 111 Lyon Street NW, Suite 900 City State Zip Code Grand Rapids Michigan 49SQ3 effective date Document will bo returned to the name and address you enter above. If left blank, document will be returned to the registered office. CERTIFICATE OF AMENDMENT TO THE ARTICLES OF INCORPORATION For use by Domestic Profit and Nonprofit Corporations (Please read information and instructions on the last page) Pursuant to the provisions of Act 284, Public Acts of 1972., (profit corporations), or Act 162, Public Acts of 1962 (nonprofit corporations), the undersigned corporation executes the following Certificate: 1. The present name of the corporation is; Perrigo Animal Wellbeing, Inc. 2. The identification number assigned by the Bureau is: 04703J 3. Article I of the Articles of Incorporation is hereby amended to read as follows: The name of the corporation is Sergeant’s Pet Care Products, Inc.

PAGE 3 OF 4

COMPLETE ONLY ONE OF THE FOLLOWING: 4. Profit or Nonprofit Corporations: For amendments adopted by unanimous consent of incorporators before the first meeting of the board of directors or trustees. The foregoing amendment to the Articles of Incorporation was duly adopted on the day of , , in accordance with the provisions of the Act by the unanimous consent of the incorporator(s) before the first meeting of the Board of Directors or Trustees. Signed this day of , (Signature) (Signature) (Type or Print Name) (Type or Print Name) (Signature) (Signature) (Type or Print Name) (Type or Print Name) 5. Profit Corporation Only: Shareholder or Board Approval The foregoing amendment to the Articles of Incorporation proposed by the board was duty adopted on the 26th day of September 2012, by the: (check one Of the following) ? share holders at a meeting in accordance with Section 611(3) of the Act. written consent of the shareholders having not less than the minimum number of votes required by statute in accordance with Section 407(1) of the Act. Written notice to shareholders who have not consented in writing has been given. (Note: Written consent by less than all of the shareholders is permitted only if such provision appears in the Articles of Incorporation.) ? written consent of all the shareholders entitled to vote in accordance with Section 407(2) of the Act- ? board of a profit corporation pursuant to section 611 (2) of the Act, Profit Corporations and Professional Service Corporations Signed this 26 day of September , 2012 (Signature of an authorized officer or agent) (Type or Print Name) 8605943

PAGE 4 OF 4

BCS/CD-515 (Rev 04/11) MICHIGAN DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS BUREAU OF COMMERCIAL SERVICES Date Received This document is effective on the date filed, unless a subsequent effective date within 90 days after received date is stated in the document. Name Warner Norcross & Judd LLP Attn: M. Daniel Address 111 Lyon Street NW, Suite 900 City State Zip Code Grand Rapids Michigan 4950 EFFECTIVE DATE: Document will be returned to the name and address you enter above. If left blank, document will be returned to the registered office. CERTIFICATE OF AMENDMENT TO THE ARTICLES OF INCORPORATION For use by Domestic Profit and Nonprofit Corporations (Please read information and instructions on the last page) Pursuant to the provisions of Act 284, Public Acts of 1972, (profit corporations), or Act 162, Public Acts of 1982 (nonprofit corporations), the undersigned corporation executes the following Certificate: 1. The present name of the corporation is: Perrigo Animal Wellbeing, Inc.

2. The identification number assigned by the Bureau is: 04703J 3. Article | of the Articles of Incorporation is hereby amended to read as follows: The name of the corporation is Sergeant’s Pet Care Products, Inc. COMPLETE ONLY ONE OF THE FOLLOWING:

4. Profit or Nonprofit Corporations: For amendments adopted by unanimous consent of incorporators before the first meeting of the board of directors or trustees. The foregoing amendment to the Articles of Incorporation was duly adopted on the day of , , in accordance with the provisions of the Act by the unanimous consent of the incorporator(s) before the first meeting of the Board of Directors or Trustees. Signed this day of , (Signature) (Signature) (Type or Print Name) (Type or Print Name) (Signature) (Signature) (Type or Print Name) (Type or Print Name) 5. Profit Corporation Only: Shareholder or Board Approval The foregoing amendment to the Articles of Incorporation proposed by the board was duly adopted on the 26th day of September 2012 , by the: (check one of the following) ? shareholders at a meeting in accordance with Section 611 (3) of the Act. IXI written consent of the shareholders having not less than the minimum number of votes required by statute in accordance with Section 407(1) of the Act. Written notice to shareholders who have not consented in writing has been given. (Note: Written consent by less than all of the shareholders is permitted only if such provision appears in the Articles of Incorporation.) ? written consent of all the shareholders entitled to vote in accordance with Section 407(2) of the Act. ? board of a profit corporation pursuant to section 611(2) of the Act. Profit Corporations and Professional Service Corporations Signed this 26 day of September 2012 (Signature of an authorized officer or agent) (Type or Print Name) 86069 8606943

Michigan Department of Licensing and Regulatory Affairs

Filing Endorsement

This is to Certify that the ARTICLES OF INCORPORATION—PROFIT

for

PERRIGO ANIMAL WELLBEING, INC.

ID NUMBER: 04703J

received by facsimile transmission on September 14, 2012 is hereby endorsed Filed on September 14, 2012 by the Administrator.

The document is effective on the date filed, unless a subsequent effective date within 90 days after received date is stated in the document.

	In testimony whereof, I have hereunto set my hand and affixed the Seal of the Department, in the City of Lansing, this 14TH day of September, 2012.

Director

Bureau of Commercial Services

Sent by Facsimile Transmission 12258

PAGE 2 OF 6

ARTICLES OF INCORPORATION

For use by Domestic Profit Corporations

(Please read information and instructions on the last page)

Pursuant to the provisions of Act 284, Public Acts of 1972, the undersigned executes the following Articles;

ARTICLE I

The name of the corporation is Perrigo Animal Wellbeing, Inc.

ARTICLE II

The purpose of the corporation is to engage in any one or more lawful acts or activities within the purposes for which a corporation may be formed under the Michigan Business Corporation Act.

ARTICLE III

The total authorized capital stock of the corporation is 60,000 shares of common stock all of one class.

ARTICLE IV

The street address (which is the mailing address) of the initial registered office of the corporation is 601 Abbott Road, East Lansing, Michigan 48823.

The name of the resident agent at the registered office is CSC-Lawyers Incorporating Service (Company).

PAGE 3 OF 6

ARTICLE V

The name and address of the incorporator are as follows:

Name	Address
Todd W. Kingma	515 Eastern Avenue Allegan, Michigan 49010-9070

ARTICLE VI

When a compromise or arrangement or a plan of reorganization of the corporation is proposed between the corporation and its creditors or any class of them or between the corporation and its shareholders or any class of them, a court of equity jurisdiction within the state, on application of the corporation or of a creditor or shareholder thereof, or on application of a receiver appointed for the corporation, may order a meeting of the creditors or class of creditors or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or reorganization, to be summoned in such manner as the court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or a reorganization, agree to a compromise or arrangement or a reorganization of the corporation as a consequence of the compromise or arrangement, the compromise or arrangement and the reorganization, if sanctioned by the court to which the application has been made, shall be binding on all the creditors or class of creditors, or on all the shareholders or class of shareholders and also on the corporation.

ARTICLE VII

Any action required or permitted by the Michigan Business Corporation Act, these Articles, or the bylaws of the corporation to be taken at an annual or special meeting of shareholders may be taken without a meeting, without prior notice, and without a vote, if consents in writing, setting forth the action so taken, are signed by the holders of outstanding shares having not less than the minimum number of votes that would be necessary to authorize or take the action at a meeting at which all shares entitled to vote on the action were present and voted. The written consents shall bear the date of signature of each shareholder who signs the consent. No written consents shall be effective to take the corporate action referred to unless, within 60 days after the record date for determining shareholders entitled to express consent to or to dissent from a proposal without a meeting, written consents dated not more than 10 days before the record date and signed by a sufficient number of shareholders to take the action are delivered to the corporation. Delivery shall be to the corporation’s registered office, its principal place of business, or an officer or agent of the corporation having custody of the minutes of the proceedings of its shareholders. Delivery made to a corporation’s registered office shall be by hand or by certified or registered mail, return receipt requested. Prompt notice of the taking of the corporate action without a meeting by less than unanimous written consent shall be given to shareholders who would have been entitled to notice of the shareholder meeting if the action had been taken at a meeting and who have not consented to the action in writing.

PAGE 4 OF 6

An electronic transmission consenting to an action transmitted by a shareholder or proxy holder, or by a person authorized to act for the shareholder or proxy holder, shall be considered written, signed, and dated if the electronic transmission is delivered with information from which the corporation can determine (a) that the electronic transmission was transmitted by the shareholder or proxy holder, or by the person authorized to act for the shareholder or proxy holder, and (b) the date on which the electronic transmission was transmitted. The date on which an electronic transmission is transmitted is the date on which the consent was signed. A consent given by electronic transmission is not delivered until it is received by the Secretary or any other designated officer of the corporation and reproduced in paper form by the corporation.

ARTICLE VIII

The corporation shall indemnify any director of the corporation who was or is a party or is threatened to be made a party to any threatened, pending, or completed action, suit, or proceeding by reason of the fact that he or she is or was a director, or is or was serving at the request of the corporation in another capacity, to the fullest extent permitted (in the absence of rights granted under these Articles, the corporation’s bylaws, or a contractual agreement) by the Michigan Business Corporation Act. The corporation may further indemnify directors, and may indemnify persons who are not directors, to the extent authorized by the Michigan Business Corporation Act, bylaw, resolution of the board of directors, or contractual agreement authorized by the board of directors. A change in the Michigan Business Corporation Act, these Articles, or the bylaws that reduces the scope of indemnification shall not apply to any action or omission that occurs before the change.

ARTICLE IX

A director of the corporation shall not be liable to the corporation or its shareholders for money damages for any action taken or any failure to take any action as a director, except that a director’s liability is not limited for;

(1) the amount of a financial benefit received by a director to which he or she is not entitled;

(2) intentional infliction of harm on the corporation or the shareholders;

(3) a violation of section 551 of the Michigan Business Corporation Act; or

(4) an intentional criminal act.

If the Michigan Business Corporation Act is amended to further eliminate or limit the liability of a director, then a director of the corporation (in addition to the circumstances in which a director is not liable as set forth in the preceding paragraph) shall, to the fullest extent permitted by the Michigan Business Corporation Act, as so amended, not be liable to the corporation or its shareholders. No amendment to or modification or repeal of this Article shall increase the liability of any director of the corporation for or with respect to any acts or omissions of such director occurring prior to such amendment, modification, or repeal.

PAGE 5 OF 6

ARTICLE X

The corporation may amend or repeal any provision contained in these Articles and add Articles in the manner prescribed by statute.

The incorporator has executed these Articles of Incorporation on Sept. 14, 2012.

/s/ Todd W. Kingma

Todd W. Kingma, Incorporator

PAGE 6 OF 6

ARTICLES OF INCORPORATION

For use by Domestic Profit Corporations

(Please read information and instructions on the last page)

Pursuant to the provisions of Act 284, Public Acts of 1972, the undersigned executes the following Articles:

ARTICLE I

The name of the corporation is Perrigo Animal Wellbeing, Inc.

ARTICLE II

The purpose of the corporation is to engage in any one or more lawful acts or activities within the purposes for which a corporation may be formed under the Michigan Business Corporation Act.

ARTICLE III

The total authorized capital stock of the corporation is 60,000 shares of common stock all of one class.

ARTICLE IV

The street address (which is the mailing address) of the initial registered office of the corporation is 601 Abbott Road, East Lansing, Michigan 48823.

The name of the resident agent at the registered office is CSC-Lawyers Incorporating Service (Company).

ARTICLE V

The name and address of the incorporator are as follows:

Name	Address
Todd W. Kingma	515 Eastern Avenue
	Allegan, Michigan 49010-9070

ARTICLE VI

When a compromise or arrangement or a plan of reorganization of the corporation is proposed between the corporation and its creditors or any class of them or between the corporation and its shareholders or any class of them, a court of equity jurisdiction within the state, on application of the corporation or of a creditor or shareholder thereof, or on application of a receiver appointed for the corporation, may order a meeting of the creditors or class of creditors or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or reorganization, to be summoned in such manner as the court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, or of the shareholders or class of shareholders to be affected by the proposed compromise or arrangement or a reorganization, agree to a compromise or arrangement or a reorganization of the corporation as a consequence of the compromise or arrangement, the compromise or arrangement and the reorganization, if sanctioned by the court to which the application has been made, shall be binding on all the creditors or class of creditors, or on all the shareholders or class of shareholders and also on the corporation.

ARTICLE VII

Any action required or permitted by the Michigan Business Corporation Act, these Articles, or the bylaws of the corporation to be taken at an annual or special meeting of shareholders may be taken without a meeting, without prior notice, and without a vote, if consents in writing, setting forth the action so taken, are signed by the holders of outstanding shares having not less than the minimum number of votes that would be necessary to authorize or take the action at a meeting at which all shares entitled to vote on the action were present and voted. The written consents shall bear the date of signature of each shareholder who signs the consent. No written consents shall be effective to take the corporate action referred to unless, within 60 days after the record date for determining shareholders entitled to express consent to or to dissent from a proposal without a meeting, written consents dated not more than 10 days before the record date and signed by a sufficient number of shareholders to take the action are delivered to the corporation. Delivery shall be to the corporation’s registered office, its principal place of business, or an officer or agent of the corporation having custody of the minutes of the proceedings of its shareholders. Delivery made to a corporation’s registered office shall be by hand or by certified or registered mail, return receipt requested. Prompt notice of the taking of the corporate action without a meeting by less than unanimous written consent shall be given to shareholders who would have been entitled to notice of the shareholder meeting if the action had been taken at a meeting and who have not consented to the action in writing.

-2-

An electronic transmission consenting to an action transmitted by a shareholder or proxy holder, or by a person authorized to act for the shareholder or proxy holder, shall be considered written, signed, and dated if the electronic transmission is delivered with information from which the corporation can determine (a) that the electronic transmission was transmitted by the shareholder or proxy holder, or by the person authorized to act for the shareholder or proxy holder, and (b) the date on which the electronic transmission was transmitted. The date on which an electronic transmission is transmitted is the date on which the consent was signed. A consent given by electronic transmission is not delivered until it is received by the Secretary or any other designated officer of the corporation and reproduced in paper form by the corporation.

ARTICLE VIII

The corporation shall indemnify any director of the corporation who was or is a party or is threatened to be made a party to any threatened, pending, or completed action, suit, or proceeding by reason of the fact that he or she is or was a director, or is or was serving at the request of the corporation in another capacity, to the fullest extent permitted (in the absence of rights granted under these Articles, the corporation’s bylaws, or a contractual agreement) by the Michigan Business Corporation Act. The corporation may further indemnify directors, and may indemnify persons who are not directors, to the extent authorized by the Michigan Business Corporation Act, bylaw, resolution of the board of directors, or contractual agreement authorized by the board of directors. A change in the Michigan Business Corporation Act, these Articles, or the bylaws that reduces the scope of indemnification shall not apply to any action or omission that occurs before the change.

ARTICLE IX

A director of the corporation shall not be liable to the corporation or its shareholders for money damages for any action taken or any failure to take any action as a director, except that a director’s liability is not limited for:

(1) the amount of a financial benefit received by a director to which he or she is not entitled;

(2) intentional infliction of harm on the corporation or the shareholders;

(3) a violation of section 551 of the Michigan Business Corporation Act; or

(4) an intentional criminal act.

If the Michigan Business Corporation Act is amended to further eliminate or limit the liability of a director, then a director of the corporation (in addition to the circumstances in which a director is not liable as set forth in the preceding paragraph) shall, to the fullest extent permitted by the Michigan Business Corporation Act, as so amended, not be liable to the corporation or its shareholders. No amendment to or modification or repeal of this Article shall increase the liability of any director of the corporation for or with respect to any acts or omissions of such director occurring prior to such amendment, modification, or repeal.

-3-

ARTICLE X

The corporation may amend or repeal any provision contained in these Articles and add Articles in the manner prescribed by statute.

The incorporator has executed these Articles of Incorporation on Sept. 14, 2012.

/s/ Todd W. Kingma

Todd W. Kingma, Incorporator

-4-