Ticarcillin is a carboxypenicillin that is typically used in combination with clavulanate (the β-lactamase inhibitor clavulanate potassium, or the potassium salt of clavulanic acid) as ticarcillin/clavulanic acid. Ticarcillin is a form of penicillin which falls within the class of beta-lactam antibiotics.
Ticarcillin has often been used in the intrauterine treatment of endometritis caused by beta-hemolytic steptococci, for the treatment of serious Pseudomonas aeruginosa and Pseudomonas spp. infections. It is also effective against certain other gram-negative bacilli, including Proteus spp and Bacteroides fragilis.1