Agent	How supplied	Dosage	Side effects	Cost*
Glycopyrrolate	Scored tablets,† 1 or 2 mg	Adults: Start at 0.5 mg orally, one to three times daily; titrate to effectiveness and tolerability‡	Constipation, excessive oral dryness, urinary retention, blurred vision, hyperactivity, irritability	$ 0.66 per 1-mg tablet
		Children: 0.04 mg per kg per dose orally, two to three times daily; titrate to effectiveness and tolerability
Scopolamine (Transderm Scop)	Patch, 1.5 mg	Apply patch every day	Pruritus at patch site, urinary retention, irritability, blurred vision, dizziness, glaucoma	20.99 per four 1.5-mg patches
Botulinum toxin A	Vial, 100 U per vial	Under ultrasound guidance, injections of 10 to 40 units into each submandibular and parotid gland	Pain at injection site, excessive oral dryness	521.25 per vial