Delsym and Robitussin-DM contain the active ingredient dextromethorphan, a cough suppressant. In addition to dextromethorphan, Robitussin-DM also contains the active ingredient guaifenesin. This is an ...

Robitussin Chesty Cough Medicine contains the active ingredient guaifenesin. This belongs to a group of medicines called cough expectorants that working to break up and loosen the mucus on the chest ...

Learn more about Mucinex, a popular over-the-counter cough medication, including how it works, how long it lasts, and safety ...

Guaifenesin is the active ingredient in oral cough medications such as Mucinex or Robitussin for Direct Chest Congestion.

Robitussin Dry Cough Relieves dry persistent coughs by controlling the cough reflex. Relieving you of a painful cough and with a soothing effect. - You have had a cough for a long time or if you have ...

Both medications can reduce cough, but Robitussin-DM can also help loosen mucus and relieve chest congestion. Delsym and ...