Ampicillin is an antibiotic effective against a number of infections caused by bacteria. It is prescribed to treat bacterial infections.


If you miss a dose ensure it is given as soon as possible, however, if it is almost time for the next dose then skip the missed dose and continue as normal. Ensure two doses are not administered together.

I have heard that this drug can have side effects, how will this affect my pet?

All medicines have potential side effects but this does not mean your pet has a high risk of experiencing them, possible side effects may include stomach upset, vomiting and diarrhea. The following reactions are rare, but if the pet experiences an allergic reaction such as irregular breathing, rash, fever, puffiness and swelling around the face contact your veterinarian immediately.

Possible drug interactions

Ensure your vet is aware of any other medication your are giving your pet. Drug interaction is not uncommon when two differing medications are prescribed. The following drugs are known to interact with Ampicillin – chloramphenicol, erythromycin, tetracycline and aminoglycosides.