Guaifenesin is the only expectorant approved by the Food and Drug Administration (FDA). The exact way Mucinex works is ...

[It’s] not a study that you would conduct today.” Another problem, he points out, is that Mucinex is a Class C drug, which ...

If you have a bottle of Mucinex in your medicine cabinet, you may need to throw it away. Earlier this week, drugmaker RB recalled certain lots of over-the-counter Mucinex Fast-Max liquid products ...