How Long Does Guaifenesin Last?

Generic: GUAIFENESIN

Source: Federal Drug Label Data

Storage Conditions

Room temperature

Manufacturer

Major Pharmaceuticals

Storage Information

Other information store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF) use by expiration date on package

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 Guaifenesin on DailyMed (NIH) | Federal drug label data.

Last verified: 2026-03-28