Compare to the active ingredients in Mucinex® D Maximum Strength Tablets. Available at your local CVS pharmacy counter, CVS Health® Maximum Strength Mucus D Extended-Release Tablets have two ingredients which can provide relief for up to 12 hours: Guaifenesin is an expectorant which can thin and loosen mucus. Pseudoephedrine HCl is a nasal decongestant which can help relieve nasal/sinus congestion. This product is not manufactured or distributed by Reckitt Benckiser LLC, owner of the registered trademark Mucinex® Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive.Temporarily relieves nasal congestion due to common cold, hay fever and/or upper respiratory allergies.Temporarily restores freer breathing through the nose.Promotes nasal and/or sinus drainage.Temporarily relieve sinus congestion and pressure.See package label for Warnings, Directions and other important information. Use only as directed..