A strongly basic compound, usually found (in some plants and lower animals) as the hydrochloride; a constituent of creatine and arginine; administered as a cholinergic striated muscle stimulant.
* * *
gua·ni·dine 'gwän-ə-.dēn n a base CH5N3 that is derived from guanine, is found esp. in young tissues, and is used in organic synthesis and that in the form of its hydrochloride CH5N3·HCl is used as a drug to enhance acetylcholine activity
* * *
gua·ni·dine (gwahґnĭ-dēn) the compound NH
C(NH2)2, a strong base found in the urine as a normal product of protein metabolism. It is used in laboratory research as a protein denaturant.
Medical dictionary. 2011.