Alka-Seltzer Plus® Severe Cough, Mucus & Congestion Day/Night Liquid Gels. See new warning. Non drowsy day: Acetaminophen/pain reliever-fever reducer. Dextromethorphan HBr/cough suppressant. Guaifenesin/expectorant. Phenylephrine HCL/nasal decongestant. Relieves: mucus, cough, nasal & chest congestion, headache, sore throat, fever. Night: Acetaminophen/pain reliever-fever reducer. Dextromethorphan HBr/cough suppressant. Doxylamine succinate/antihistamine. Phenylephrine HCL/nasal decongestant. Relieves: cough, nasal congestion, runny nose, headache, sore throat, fever. Bayer. Does not contain aspirin. Alka-Seltzer Plus® severe cough, mucus & congestion day liquid gels: Uses: Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive. Temporarily relieves these symptoms due to a cold or flu: Nasal congestion. Sinus congestion and pressure. Minor aches and pains. Headache. Cough. Sore throat. Temporarily reduces fever. Alka-Seltzer Plus® severe cough, mucus & congestion night liquid gels: Uses: Temporarily relieves these symptoms due to a cold or flu: Minor aches and pains. Headache. Nasal and sinus congestion. Cough. Sore throat. Runny nose. Sneezing. Temporarily reduces fever. Questions or comments 1-800-986-0369 (Mon-Fri 9am - 5pm EST). Bayer, the Bayer cross and Alka-Seltzer Plus are registered trademarks of Bayer.