PYRAZINO(2',3'-3,4)PYRIDO(1,2-A)INDOLE DERIVATIVES

摘要

Herein is disclosed pyrazino[2',3'-3,4]pyrido[1,2-a]indole derivatives, therapeutically acceptable acid addition salts thereof, processes for their preparation, methods of using the derivatives and pharmaceutical compositions. The derivatives are useful for treating hypertension in a mammal.