Get multi-symptom relief with Mucinex Rapid+Clear Maximum Strength Pain, Headache & Mucus Congestion Rapid Release Caplets. Formulated with acetaminophen and guaifenesin, this medicine helps relieve pain and headache, reduce fever, and thin and loosen mucus to help clear congestion. The rapid-release caplets provide convenient symptom relief when you need it and are intended for adults and children ages 12 years and older. Each package contains 10 caplets.