Lethargy after Cephalexin in dogs
457 reports to the FDA describe lethargy in dogs given Cephalexin. That is 17% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.
457Reports
51%Marked serious
34%Recovered
19%Died or euthanised
5 daysTypical onset
Sponsored
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Type: medicine.
Questions owners ask
- Can Cephalexin cause lethargy in dogs?
- 457 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 5 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).
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 Cephalexin in dogs · Medicines most reported with lethargy