Sulbactam sodium is an irreversible β-lactamase inhibitor.

Chelerythrine, a natural product isolated and purified from the herbs of Chelidonium majus with potent antimanic, antiproliferatvie and antitumor effect, can inhibit telomerase activity, and is a well-known protein kinase C inhibitor.

Sulopenem is an orally active, parenteral penem antibiotic with broad-spectrum activities against Gram-positive and Gram-negative bacteria.

Dicloxacillin is a β-lactamase resistant penicillin similar to oxacillin and it has activity against Gram-positive/negative aerobic and anaerobic bacteria.