Dog fungal infection: Terbinafine & Cephalexin side effects, including seizures?
Hello. Cephalexin is an antibiotic, so your veterinarian wanted to cover for any secondary bacterial infections. The side effects reported are vomiting, diarrhea, excitement, depression, anorexia, & salivation. This is a very common & safe antibiotic used in dogs. Terbinafine is the antifungal agent, and the side effects reported in dogs seem to only involve the eyes, including some swelling & conjunctivitis. In humans, the majority of adverse effects involve the GI tract & the skin. No reports of seizures are reported with the use of either drug. So if you have observed a seizure in Bruno, please contact your veterinarian as soon as possible. Thank you.
Updated on September 23, 2025