methacholine chloride

meth·a·cho·line chlor·ide

(meth'ă-kō'lēn klōr'īd),

A derivative of acetylcholine; a parasympatomimetic agent used as a bronchoconstrictor in testing for bronchial hyperreactivity.

methacholine chloride

(mĕth″ă-kō′lēn)

A parasympathomimetic bronchoconstrictor similar to acetylcholine, used as an aerosol in different strengths in airway challenge tests.

CAUTION!

This substance should be used only for diagnostic purposes under the supervision of a physician trained in and thoroughly familiar with all aspects of the technique. Emergency resuscitation devices and medication should be available to treat respiratory distress.