How Long Does Cough and Chest Congestion DN, Cough DM Daytime, Nighttime Last?

Generic: DEXTROMETHORPHAN HBR, DOXYLAMINE SUCCINATE, GUAIFENESIN

Source: Federal Drug Label Data

Storage Conditions

Room temperature

Manufacturer

CVS WOONSOCKET PRESCRIPTION CENTER, INCORPORATED

Storage Information

Other information each 20 mL contains: sodium 16 mg store at 25°C (77°F); excursions permitted between 15°-30°C (59°-86°F) see end flap for expiration date and lot number Other information each 20 mL contains: sodium 14 mg store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF) see end flap for expiration date and lot number

Important: This information is from federal drug label data and is for reference only. Always follow the specific expiration date printed on your medication packaging. Consult your pharmacist or healthcare provider with questions about medication storage or expiration.

Data source: View Cough and Chest Congestion DN, Cough DM Daytime, Nighttime on DailyMed (NIH) | Federal drug label data.

Last verified: 2026-03-28