Chemical Structure:
C17H23NO3 · H2SO4
Mechanism of Action:
Hyoscyamine is a tropane alkaloid and muscarinic antagonist that blocks the action of acetylcholine at parasympathetic sites in smooth muscle, secretory glands, and the CNS.
Uses:
It is used to treat gastrointestinal disorders such as irritable bowel syndrome.
Side Effects:
Side effects include dry mouth, blurred vision, urinary retention, constipation, confusion, and tachycardia.