This review describes the pharmacological aspects of renin release with spe
cial emphasis on the role of sympathetic nervous system, catecholamines, ad
renoceptor blocking drugs, humoral agents, adrenalectomy and chemical sympa
thectomy. The effect of antihypertensive drugs and other pharmacological ag
ents on plasma renin activity and the role of renin levels in their antihyp
ertensive effects are also discussed. The role of renin inhibitors as a pos
sible therapeutic class of antihypertensive agents, which could eventually
expand the spectrum of antihypertensive therapy and improve our understandi
ng of the role of the renin angiotensin system, is also addressed. (C) 2000
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