This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Which of the following medications is contraindicated in patients with allergy to sulfonamides? \nSelect and explain. \nA. Levobunolol, B. Bimatoprost, C. Brinzolamide, D. Brimonidine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Brinzolamide ophthalmic (eye) drops is used to treat increased pressure in the eye caused by open-angle glaucoma or a condition called ocular hypeension. The presence of other medical problems may affect the use of this medicine. Allergy to sulfa drugs--Use with caution. May increase risk for more serious side effects. Cornea (pa of the eye) problems, history of or Eye infection or Eye surgery, recent--Use with caution. May make these conditions worse. Kidney disease, severe--Should not be used in patients with this condition. REFERENCE: www.mayoclinic.org', 'role': 'assistant'}]