Virbac Corporation is recalling approximately 161,149 units of various heartworm preventative chewables, including Iverhart Plus, VETIQ HeartShield Plus, Worm Shield, and HeartShield. These flavored chewables, containing ivermectin and pyrantel, are being recalled because testing revealed they were "out-of-specification" for ivermectin potency, meaning they may contain less medicine than labeled. If your dog is not receiving the full dose of ivermectin, they may not be fully protected against heartworm disease. Consumers should contact their veterinarian or pharmacist to discuss alternative treatments and potential testing for their pets.
The recalled chewables may have insufficient levels of ivermectin, which is the active ingredient used to prevent heartworm infection in dogs. If a pet receives a low-potency dose, they are at increased risk of contracting heartworm disease, a serious and potentially fatal condition caused by parasitic worms.
Veterinary medication refund/replacement procedure
AI-Enhanced Content: The summary, action steps, and risk assessment on this page were generated by AI from official government recall data to improve readability. This is not legal or medical advice. Always refer to the official agency sources below for authoritative information.
Sources: FDA iRES · Raw API Response