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clavulanic acid

n. (context medicine English) An inhibitor of enzymatic hydrolysis that is added to penicillin antibiotics

Wikipedia
Clavulanic acid

Clavulanic acid ( rINN) is a β-lactam drug that functions as a mechanism-based β-Lactamase inhibitor. While not effective by itself as an antibiotic, when combined with penicillin-group antibiotics, it can overcome antibiotic resistance in bacteria that secrete β-lactamase, which otherwise inactivates most penicillins.

In its most common form, the potassium salt potassium clavulanate is combined with:

Clavulanic acid is an example of a clavam.