Quinine / tonic water - does it affect P A ??

Has any noticed if Quinine / tonic water - afaffects A ?

Quinine is used for cramp,but I don't know what P A stands for?

I was given this as I keep getting cramp in my big toes, nowhere else so far as incredibly painful.  Don't know what PA stands for, sorry.

Hi

Sorry.

Printzmetal Angina is what PA stands .

Brooke