Chest congestion medications, like Robitussin and Mucinex, come in liquid, tablet, and capsule forms. Both work for multiple symptoms although some people may prefer Robitussin for a cough and Mucinex ...

Mucinex and Mucinex DM both contain an expectorant that helps loosen mucus. Mucinex DM also contains a drug that helps reduce coughing. Both have slightly different side effects. When you need some ...