Guaifenesin the active ingredient in Mucinex, is an expectorant. Expectorants help people cough or sneeze to remove excess ...

For this reason, our medical experts recommend using single-ingredient drugs whenever you can. Read more on what you can do about drug recalls. For more information on the Mucinex recall and a ...

Some significant side effects include: Certain drugs, such as Mucinex DM (dexamethorphan) or Benadryl (diphenhydramine), contain ingredients that have sedative or drowsy effects. These medicines ...