Drug classification 1. Direct actions on the receptors Agonists(NE, EPl, Iso, dopamine, etc) Antagonists(phentolamine, propranolol, etc 2 Indirect actions via affecting transmitters Synthesis( L-dopa) Transport and storage( ImipramIne丙咪嗪, reserpine利舍平) Release( ephedrine麻黄碱, amphetamine安非他明) Inactivation MAOl) 13Drug classification 1. Direct actions on the receptors Agonists (NE, EPI, ISO, dopamine, etc) Antagonists (phentolamine, propranolol, etc) 2 Indirect actions via affecting transmitters Synthesis (L-dopa) Transport and storage (imipramine丙咪嗪, reserpine 利舍平) Release (ephedrine 麻黄碱, amphetamine 安非他明) Inactivation (MAOI) 13