Didn't prevent heartworm after Pyrantel in dogs
79 reports to the FDA describe didn't prevent heartworm in dogs given Pyrantel. That is 1.7% of all reports for this medicine, compared with 13% across reports for all dog medicines, so it is reported less often than average with this medicine.
79Reports
29%Marked serious
3.8%Recovered
5.1%Died or euthanised
188 daysTypical onset
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How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Pyrantel treats roundworms and hookworms.
Questions owners ask
- Can Pyrantel cause didn't prevent heartworm in dogs?
- 79 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
- How soon after a dose was it reported?
- In half of the reports with dates, it started within 188 days of the first dose.
- What should I do?
- Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).
Didn't prevent heartworm with similar medicines
- Didn't prevent heartworm after Pyrantel + Sarolaner (Simparica Trio) 5,803 reports · 11% of its reports
- Didn't prevent heartworm after Febantel + Praziquantel + Pyrantel (Drontal Plus) 42 reports · 0.6% of its reports
- Didn't prevent heartworm after Fenbendazole 65 reports · 1.1% of its reports
- Didn't prevent heartworm after Praziquantel + Pyrantel 26 reports · 0.7% of its reports
All reported side effects of Pyrantel in dogs · Medicines most reported with didn't prevent heartworm