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  1. Product Safety Information

Current Animal Drug Shortages


Sponsors and manufacturers provide most drug shortage information and FDA works closely with them to help prevent or reduce the impact of shortages.

FDA may disclose information that sponsors/manufacturers voluntarily submit to the Agency as permitted by applicable disclosure law, which includes restrictions on the release of confidential commercial information and trade secrets.  If FDA determines that a product is in shortage, the Agency generally intends to work with sponsors and manufacturers to confirm the accuracy and appropriateness of information regarding the shortage before posting publicly on FDA’s website.

Date Shortage Began Drug Product Sponsor/Manufacturer Additional Information
February 2024 Etorphine Wildlife Pharmaceuticals, Inc.
Regulatory issues.
February 2024 Thianil (thiafentanil oxalate) Wildlife Pharmaceuticals, Inc.
Regulatory issues.
November 2023 Folltropin (porcine pituitary-derived follicle stimulating hormone) Vetoquinol USA, Inc.
(800) 267-5707 ext. 238
Manufacturing delays. Expected availability late February 2024.

FDA is not objecting to the temporary importation of a limited amount of PLUSET (follicle stimulating hormone + luteinizing hormone) by Alberta Veterinary Laboratories, Ltd./Solvet during this shortage. For additional information see the CVM Update and the Pluset Client Information Sheet. Contact Alberta Veterinary Laboratories Ltd/Solvet Customer Service for more information at (403) 456-2245.  
September 2023 E-SE
Merck/Intervet Inc.
Approval of manufacturing changes pending.
August 2023 PrednisTab (prednisolone tablets), USP, 20mg tablets Lloyd, Inc.
(800) 831-0004
Manufacturing delays. Expected availability February 2024.
September 2022 Viceton Tablets (chloramphenicol) Bimeda, Inc.
(630) 928-0361
Manufacturing delays. Firm anticipates adequate supply in early 2024. 
July 2022 Lidocaine 2% Injection Sparhawk Laboratories, Inc.
(800) 255-6368
API shortage, transportation issues
March 2021 R-PEN Soluble Powder (penicillin G potassium) Huvepharma Inc.
Unavailability of active pharmaceutical ingredient
February 2021 Pro-Pen-G (penicillin G procaine, injectable) Bimeda, Inc.
(630) 928-0361
Unavailability of active pharmaceutical ingredient
November 13, 2019 Epinephrine 1 mg/mL Sparhawk Laboratories, Inc.
(800) 255-6368
Increased demands. Approved human product is also available in 30 ml vials.
August 8, 2016 Halamid Aqua (chloramine-T) Axcentive SARL Manufacturing delay
April 13, 2015 IV fluids for animal use, 3L & 5L sizes Various companies Demand Increase, reduction in the manufacturing of 3L & 5L sizes

Resolved Animal Drug Shortages


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