Why would someone with high blood pressure and asthma not receive adrenergic beta-receptor blocking drugs to lower their blood pressure?

Question

aaronq · Answer

i know it lowers pulmonary function, but could someone elaborate on this?

thomaster · Answer

Because beta blockers can cause bronchoconstriction (narrowing of airways)
That's normally not a problem for healthy patients but for asthma it can worsen the breathing problem that occurs with asthma.

aaronq · Answer

would you happen to know the signalling pathway or the effect?  also, do you know if beta receptors are G protein coupled?

aaronq · Answer

i found it, thanks dude!

thomaster · Answer

i do know beta receptors are Gprotein couples but i don't know the pathway srry :P

aaronq · Answer

haha thanks, regardless!