Methacholine (INN, USAN) (trade name Provocholine), also known as acetyl-β-methylcholine, is a synthetic choline ester that acts as a non-selective muscarinic receptor agonist in the …

Nov 20, 2024 · It can help your doctor evaluate symptoms suggestive of asthma, such as cough, chest tightness and shortness of breath, and help diagnose whether or not you have asthma. During the …

Nov 14, 2025 · Easy-to-read patient leaflet for Methacholine. Includes indications, proper use, special instructions, precautions, and possible side effects.

Feb 1, 2026 · Methacholine inhalation is used to help your doctor diagnose bronchial airway hyperreactivity or asthma. This medicine works by narrowing your bronchial airways. The degree of …

Nov 15, 2020 · A methacholine challenge test evaluates your lung function and the reactivity (narrowing or tightening) of your airways. It helps diagnose and monitor asthma.

Aug 1, 2025 · For most Respiratory Therapists, and other health care workers in pulmonary diagnostics, methacholine chloride is a common, well-known bronchoprovocation agent. Provocholine® is the …

May 16, 2010 · Methacholine is a non-specific cholinergic agonist (parasympathomimetic) that acts through muscarinic receptors in the lungs to induce bronchoconstriction, which is more significant in …

Methacholine is an inhaled drug that causes mild narrowing of the airways in the lungs, like asthma. A methacholine challenge test can be done in your doctor’s office or in a pulmonary function lab.

Methacholine Nebulizer Solution What is this medication? METHACHOLINE (meth uh KOH leen) helps diagnose asthma. It is used in a challenge test performed to assess how reactive your lungs are. It …

Methacholine Methacholine is a direct cholinergic agonist which is more resistant to hydrolysis by acetylcholinesterase than acetylcholine. It is used for the diagnosis of bronchial airway …