The nighttime formula also contains doxylamine succinate, an antihistamine.
The liquid medicines both provide temporary relief of cold & flu symptoms including fever, cough, nasal and chest congestion, headache, body aches and sore throat. The nighttime liquid medicine relieves symptoms to help you sleep and comes in a soothing berry flavor. They also aid in loosening mucus & thinning bronchial secretions for more productive coughs.This two-pack contains one bottle of liquid non-drowsy daytime relief and one bottle of liquid nighttime relief.