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Methacholine induced headache
C Carratala1, J G Gea, M C Aguar
1Department of Pneumology, Hospital del Mar, IMIM Universitat Autònoma de Barcelona, Spain.
Thorax
|March 1, 1995
Abstract:
A lung function technician developed episodes of headache, probably related to the use of methacholine. The headache disappeared with breathing 100% oxygen. Cholinergic agents are known to induce headaches but the mechanism remains unclear. Vascular factors could be implicated.