ExoticRx · exoticrx.com/drugs/methacholine-ophthalmic
US brand names:Provocholine Ophthalmic
Cholinergic agonist that causes pupillary constriction (miosis). Used diagnostically for dysautonomia (Key-Gaskell syndrome) — denervated pupils are supersensitive.
Diagnostic use only. Normal pupils will not respond to dilute solution. Positive response (miosis) indicates denervation supersensitivity.
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