An antibiotic (Not for Human Consumption) used to prevent and treat bacterial infections including acute otitis media, streptococcal pharyngitis (Strep throat), pneumonia, skin infections, urinary tract infections, Salmonella infections, Lyme disease, and chlamydia infections. It is the first line treatment for middle ear infections.  

Common side effects include nausea and rash. It may also increase the risk of yeast infections and, when used in combination with clavulanic acid, diarrhea. It should not be used if allergic to penicillin. While usable on fish with kidney problems, the dose may need to be decreased. Its use during pregnancy does not appear to be harmful.