Ivermectin + Praziquantel side effects in dogs
204 reports sent to the FDA between 2003 and 2026 involve Ivermectin + Praziquantel in dogs. The most reported problems were eye or vision problems, wobbliness (ataxia), tremors. 28% were marked serious.
About this medicine
Ivermectin prevents heartworm disease (monthly). Praziquantel treats tapeworms.
Some herding breeds (for example Collies) carry the MDR1 gene variant and can be more sensitive to this drug class at high doses.
Most reported side effects
Share = percentage of this medicine's reports that mention the problem. One report can list several problems.
Reports that it didn't work
Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (52 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Australian Shepherd Dog 10 reports
- German Shepherd Dog 10 reports
- Chihuahua 8 reports
- Dachshund 7 reports
- Beagle 6 reports
- Bulldog 6 reports
- German Pomeranian Spitz 5 reports
- Shih Tzu 5 reports
- Border Collie 5 reports
- Boston Terrier 4 reports