ve nguon goc ad : chu yeu lay tu tuy thuong than dong vat hoac tong hop con noa lay o dau tan cung cac soi giao cam.

ve R :td len cac r cua he ad .td len ca anpha va beta . con noa thi chu yeu tac dung len anpha con beta rat yeu

tac dung len tim mach : A lam tim dap nhanh manh lam tang huyet ap toi da. tang ap luc dot ngot o cung dong mach chu va xoang dong mach canh. lam phat sinh phan xa giam ap . lam cuong trung tam day 10 lam tim dap cham dan va huyet ap giam .  tren mach co the gay co mach o da va tang  nhung gay gian mach o co van va phoi nen huyet ap toi thieu khong thay doi co khi giam nhe, huyet ap trung binh khong tang hoac tang nhe, con Noa thi it anh huong den nhip tim vi vay khong gay phan xa cuong day 10 . lam co mach manh nen lam tang huyet ap toi thieu va huyet ap trung binh manh hon Ad gap 1,5 lan

tren phe quan . A  it tac dung ten nguoi binh thuong trren ng bi co that phe quan do hen thi lam gian rat manh kem theo co manh niem mac phe quan, lam giam phu.nhung khong dung de cat con hen vi A rat nhanh mat tac dung o nhung lan sau ,Noa tac dung tren phe quan yeu vi co tron phe quan co rat nhieu r beta

tren chuyen hoa :lam tang huy glycogen gan , tang lucose mau , tang acid beo tu do trong mau tang chuyen hoa co ban tang su dung oxy cua mo . Noa  tac dung kem A

chi dinh : A  cap cuu soc phan ve cap cuu ngung tim dot ngot .duung tai cho de cam mau niem mac . tri viem mui viem mong mat ,phoi hop voi thuoc te de tang cuong tac dung cua thuoc te.    con NOA thi dung nang huyet ap trong truong hop giam huyet ap truy tim mach do chan thuong nhiem khuan qua lieu, soc do di ung