Primary Health Cold & Flu Day Time and Nighttime Relief Combo provides all day and all night multi-symptom relief for cold and flu symptoms, including cough due to minor throat and bronchial irritation, headache, minor aches and pains, fever, and sore throat. Active ingredients are acetaminophen for pain relief and reducing fever, dextromethorphan to suppress cough, and phenylephrine for nasal congestion.