Virbac Corporation is recalling approximately 38 units of Iverhart Plus (ivermectin/pyrantel) and Wormshield (ivermectin/pyrantel) flavored chewables for dogs. Quality testing revealed that specific lots were out of specification due to sub-potent results, meaning the tablets contain less of the active ingredients than required. These medications are intended to prevent heartworm disease and treat intestinal parasites like hookworms and ascarids in dogs. If your dog is currently taking medication from an affected lot, you should contact your veterinarian or pharmacist immediately.
Because the chewables are sub-potent, they may not provide enough medication to effectively prevent heartworm disease or eliminate intestinal parasites. This could lead to a failure in protection, potentially allowing your pet to develop a serious heartworm infection or maintain a parasitic burden.
Refund for sub-potent medication.
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