These include atropine, cyclopentolate, homatropine, scopolamine and tropicamide.

Some of these alkaloids include atropine, scopolamine, and hyoscyamine.

The belladonna alkaloids included in this medication include atropine, hyoscyamine, and scopolamine.

Chemically, the molecules of these compounds have a characteristic bicyclic structure and include atropine, scopolamine, and hyoscyamine.

Others include orphenadrine, scopolamine, diphenhydramine, and atropine.

Important muscarinic antagonists include atropine, Hyoscyamine, hyoscine, ipratropium, tropicamide, cyclopentolate and pirenzepine.

Some drying medications include atropine, scopolamine, and some medications used for allergies (antihistamines) and for depression (antidepressants).