Pharmacology Clavulanic acid added to ampicillin causes: A Increase effectivity against gram-negative organisms B Inhibition of Ξ²-lactamases C Increases the effectiveness against delta lactamase producing organism D Increase effectivity against gram-positive organisms π‘ Explanation Clavulanic acid added to ampicillin causes: β Correct Answer: B. Inhibition of Ξ²-lactamases