This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
[{'content': 'Which of the following is not used in glaucoma in a hypertensive patients \nSelect and explain. \nA. Dipiverfrine, B. #NAME?, C. Alpha agonist, D. Trabeculoplasty', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. (c) Alpha agonistRef: Parson's 22/e, p. 156* Alpha agonists (Brimonidine and apraclonidine) are contraindicated in hypertensive crisis 8c Parkinson's disease.* Dipivefrin is a prodrug which is converted into epinephrine inside the eyeball, so can safely be used in hypertension.", 'role': 'assistant'}]