<unk> (topical) is a muscarinic antagonist that is FDA approved for the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency, and frequency.   Common adverse reactions include dry mouth, urinary tract infection, and application site reactions.
Oxybutynin 
Arbutamine
Trimebutine
Xylometazoline
Talbutal
Moxaverine
Trimazosin
Glycopyrrolate 