Drug Interactions with Azithromycin in Dogs & Cats (Respiratory Infections)
Drug Interactions with Azithromycin in Dogs & Cats (Respiratory Infections) ✅ Synergistic Azithromycin + Beta‑lactams (e.g., amoxicillin) Combining a bacteriostatic macrolide with a bactericidal beta‑lactam provides complementary mechanisms of action and broader bacterial coverage, making this combination synergistic in mixed respiratory infections. [msdvetmanual.com] Azithromycin + Atovaquone (in dogs/cats for Babesia) These drugs are frequently used together, especially in canine babesiosis, due to complementary effects targeting different pathogen stages. [wedgewood.com] , [veterinary...er.vin.com] ➕ Additive QT‑prolonging agents (fluoroquinolones like enrofloxacin/pradofloxacin, antiarrhythmics such as sotalol, ondansetron) Concurrent use with azithromycin increases the risk of QT prolongation, leading to additive cardiac effects. [marvistavet.com] , [wedgewood.com] , [merckvetmanual.com] NSAIDs Co-administration (e.g., with carprofen, meloxicam) may inc...