The drug which releases NO: (A) Hydralazine, (B) Aminophylline, (C) Amrinone, (D) Sildenaphil
Answer is A. Ans.is'a'i.e.,HydralazineRef:GoodmanGilmanlTthlep'863, 249, 825NO donors, which release NO are used to elicit smooth muscle relaxation.Eg: Organic nitrates (nitroglycerine), Organic nitrites (Isoamylnitrite), Sodium nitroprusside, Nebivolol & Hydralazine