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Corporate health

Inducement precautions

Precautions to be taken prior to metacholine inducement

If you are pregnant, it is recommended that you cancel the test. You can make an appointment after childbirth, even if you are breast-feeding.

You should not use your pump before the test, because it dilates the bronchi. If you feel too breathless, use your pump and cancel your appointment by telephone.

Do not use the following drugs, less than four hours before the test:

  • Ventolin®
  • Apo-Salbutamol®
  • Novosalmol®
  • Berotec®
  • Bricanyl®
  • Airomir®


Do not use the following drugs, less than 12 hours before the test:

  • Serevent®
  • Foradil®
  • Oxese® and Théodur® pills
  • Oxtriphylline®
  • Choledyl®
  • Theolair®
  • Somophylline®

Do not use the following drugs, less than 24 hours before this test:

  • Uniphyl®
  • Singulair®
  • Accolate®


Within 48 to 72 hours before the test, do not use any drugs for allergies and colds that contain antihistamines (if you are unsure, talk to the technician or pharmacist).

You may have a light meal before the test.