Mucinex (guaifenesin) says ask a doctor before using if you have asthma? is it safe to take mucinex (guaifenesin) if you have asthma?

Yes: Use of this product is well tolerated by asthma patients and does not interfere with common asthma medications.

Mucinex (guaifenesin): If you are not wheezing from your asthma you can take mucinex (guaifenesin).

Yes: I have several patients with asthma that take Mucinex (guaifenesin) to help as a mucolytic agent. Be sure you tell your treating dr. So they can add the drug to your medication list and assure there are no drug interactions. Go to your same pharmacy, so they can assure all is well too. Best wishes.

It can be used: It can be used for short period as an expectorant if you have productive cough but if the cough is due to bronchial asthma than your cough will improve as your asthma is brought under control so if you have asthma you need to use inhalers for asthma to control/relieve asthma symptoms including cough.And you can use it for short term along with asthma rx.