<unk>  (INN) or amdinocillin (USAN) is an extended-spectrum penicillin antibiotic of the amidinopenicillin class that binds specifically to penicillin binding protein 2 (PBP2), and is only considered to be active against Gram-negative bacteria. It is used primarily in the treatment of urinary tract infections, and has also been used to treat typhoid and paratyphoid fever. Because<unk>  has very low oral bioavailability, an orally active prodrug was developed: pivmecillinam.
Mecillinam
Cethromycin
Piperacillin
Ampicillin
Methicillin
Carbenicillin
Erythromycin
Bacampicillin