Which of the following medications is contraindicated in patients with allergy to sulphonamides -: (A) Levobunolol, (B) Bimatoprost, (C) Brinzolamide, (D) Brimonidine
Answer is C. Ans. is 'c' i.e., Brinzolamide Acetazolamide, Dorzolamide and Brinzolamide are sulfonamide derivatives which act by inhibiting carbonic anhydrase (carbonic anhydrase inhibitor). Being sulphonamide derivatives they are contraindicated in patients with allergy to sulphonamides.