Fight back against your worst cold and flu symptoms with Mucinex® Maximum Strength Severe Congestion & Pain. These fast-acting liquid gels feature a multi-action formula: Acetaminophen to relieve headaches and body aches, Guaifenesin to thin and loosen excess mucus, and Phenylephrine HCl to reduce nasal swelling and open up your airways. Engineered for maximum efficacy, it targets sinus pressure, chest congestion, and pain simultaneously. The liquid gel format allows for faster absorption, providing the relief you need to get back on your feet.