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
Which of the following is not used in glaucoma in a hypertensive patients 
Select and explain. 
A. Dipiverfrine, B. #NAME?, C. Alpha agonist, D. Trabeculoplasty
C: Alpha agonist
Answer: C: Alpha agonist 
Explanation: 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.