Wiktionary
bacampicillin
n. (context medicine English) An antibiotic which is converted to ampicillin in the body
Wikipedia
Bacampicillin
Bacampicillin ( INN) is a penicillin antibiotic. It is a prodrug of ampicillin with improved oral bioavailability.
It is sold under the brand names Spectrobid ( Pfizer) and Penglobe ( AstraZeneca).