Amdinocillin pivoxil is a Pivaloyloxymethyl ester of amdinocillin that is wellabsorbed orally, but broken down to amdinocillin in the intestinal mucosa. It is active against gram-negative organisms and used as for amdinocillin.
Talampicillin is an ester of Ampicillin. It is hydrolyzed upon absorption to release ampicillin. It is wellabsorbed from the gastrointestinal tract resulting in a greater bioavailability of ampicillin than can be achieved with equivalent doses of ampicil