<unk>  (3-morpholinosydnonimine or<unk>  is a vasodilator. It is a metabolite of the antianginal drug molsidomine and acts by releasing NO from the endothelial cells nonenzymatically. It also hyperpolarizes the cell membrane through influencing the sodium-potassium pump and thereby rendering it less responsive to adrenergic stimulation.<unk>  injection at a dose of 1 mg produces usable erection in about 70% of patients and full erection in up to 50% of patients.<unk>  does not appear to be associated with priapism.<unk>  is neurotoxic and promotes oxidative stress on neurons.<unk>  is a peroxynitrite-generating compound involved in the pathogenesis of neurodegenerative diseases.
Linsidomine
Molsidomine
Scopolamine 
Clofoctol
Carbachol
Tolperisone
Methylscopolamine
Demecolcine