Diarrhea after Milbemycin Oxime (Interceptor) in cats
21 reports to the FDA describe diarrhea in cats given Milbemycin Oxime. That is 5.2% of all reports for this medicine, compared with 5.1% across reports for all cat medicines.
21Reports
14%Marked serious
19%Recovered
0.0%Died or euthanised
–Typical onset
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How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Milbemycin Oxime prevents heartworm and controls some intestinal worms (monthly).
Products with this ingredient include Interceptor. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.
Some herding breeds (for example Collies) carry the MDR1 gene variant and can be more sensitive to this drug class at high doses.
Questions owners ask
- Can Milbemycin Oxime cause diarrhea in cats?
- 21 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.
- 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).
Diarrhea with similar medicines
- Diarrhea after Selamectin (Revolution) 1,031 reports · 4.7% of its reports
- Diarrhea after Eprinomectin + Esafoxolaner + Praziquantel (NexGard Combo) 118 reports · 3.6% of its reports
- Diarrhea after Ivermectin (Heartgard) 51 reports · 5.3% of its reports
- Diarrhea after Eprinomectin + Praziquantel 22 reports · 3.8% of its reports
All reported side effects of Milbemycin Oxime in cats · Medicines most reported with diarrhea