Lethargy after S-methoprene in dogs
547 reports to the FDA describe lethargy in dogs given S-methoprene. That is 33% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.
547Reports
0.0%Marked serious
0.7%Recovered
4.4%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
Type: medicine.
Questions owners ask
- Can S-methoprene cause lethargy in dogs?
- 547 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).
Lethargy with similar medicines
- Lethargy after Melarsomine (Immiticide) 2,412 reports · 11% of its reports
- Lethargy after Polysulfated Glycosaminoglycan 1,037 reports · 19% of its reports
- Lethargy after Diphenhydramine 1,169 reports · 25% of its reports
- Lethargy after Butorphanol 661 reports · 15% of its reports
- Lethargy after Cefpodoxime 737 reports · 18% of its reports
- Lethargy after Tramadol 833 reports · 22% of its reports
- Lethargy after Florfenicol + Mometasone + Terbinafine 425 reports · 12% of its reports
- Lethargy after Desoxycorticosterone Pivalate 630 reports · 19% of its reports
- Lethargy after Propofol 315 reports · 10% of its reports
- Lethargy after Dirlotapide 460 reports · 16% of its reports
All reported side effects of S-methoprene in dogs · Medicines most reported with lethargy