GA8314 - I stand corrected.
My understanding was in relation to Propranolol / Inderal, which I've actually used for public speaking (stage fright). Many performers use it for this reason. They block the sympathetic (fight or flight) response.
CVS has a good explanation of the different types.
http://cvpharmacology.com/cardioinhibitory/beta-blockers
Again, thanks for the clarification.
Also - reading up on Losartan too.
https://en.wikipedia.org/wiki/Losartan
It's a selective Angiotensin II type 1 inhibitor.
There is a warning under mechanism of action section related to potassium, so pay attention to that too. "Because losartan can cause
hyperkalemia, individuals should not use
potassium supplements or salt substitutes containing potassium without appropriate monitoring by a physician.[SUP]
[7]"
[/SUP]