Methscopolamine (oxybutynin, glycopyrrolate)

mech--parasynpathetic muscarinic (Ach) antagonist

tx--genitourinary cystitis, bladder spasms, decrease urgency to pee.

mnemoic: scopolamine is to treat motion sickness, think of adding a ch3 (meth) group would make you less wanting to pee. Story time: you are on the airplane, you had to pee, but there was turbulence on your walk to the toilet, by the time you get there, you don't want to pee anymore, but just are dizzy.

Pirenzepine (propantheline)

mech-parasynpathetic muscarinic (Ach) antagonist

tx--peptic ulcer

mnemoics: when you have a "piercing "(piren) pain from the ulcer in your stomach, pirenzepine can "zap" it.