Pharmacology – MCQ 81 – Drug contraindicated in sulphonamide allergy

Which of the following medications is contraindicated in patients with allergy to sulphonamides?
A. Levobunolol
B. Bimatoprost
C. Brinzolamide
D. Brimonidine

Correct answer : C. Brinzolamide

Brinzolamide is a carbonic anhydrase inhibitor and a sulphonamide derivative. So it cannot be used in those with allergy to sulphonamides. Others belonging to the same group are acetazolamide and dorzolamide.

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