How Long Does Diphenhydramine HCl Last?

Generic: DIPHENHYDRAMINE HCL

Source: Federal Drug Label Data

Storage Conditions

Room temperature Refrigerate Protect from moisture

Manufacturer

PD-Rx Pharmaceuticals, Inc.

Storage Information

Other information Tamper Evident: Do not use if safety seal under cap is broken or missing store between 20°-25°C (68°-77°F) protect from excessive moisture use by expiration date on bottle

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 Diphenhydramine HCl on DailyMed (NIH) | Federal drug label data.

Last verified: 2026-03-28