atropine, sublingual (Parkinson’s disease)

An anticholinergic medication placed under the tongue. Some studies report that placing a drop or two of liquid atropine solution (ophthalmic) under the tongue helps to reduce the excessive drooling (sialorrhea) that often becomes a problem with Parkinson’s disease. Atropine has strong anticholinergic effects: That is, it acts on the mucous membranes to reduce their secretions. When used directly in the mouth, atropine acts only on the salivary glands, minimizing the side effects of taking anticholinergic medications systemically.