Data Source: Information sourced from the FDA OpenFDA database. Database last updated: March 2026. Learn more about our data sources →
Drug Pricing — Cost Plus Drugs
Diphenhydramine HCl
12.5mg/5ml · mL
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Uses & Indications
Uses temporarily relieves these symptoms due to hay fever or other respiratory allergies: ■ sneezing ■ itching of the nose or throat ■ runny nose ■ itchy watery eyes ■temporarily relieves these symptoms due to the common cold: ■ sneezing ■ runny nose
Dosage & Administration
Directions ■ if needed, take every 4-6 hours ■ do not take more than 6 doses in 24-hours children under 4 years of age Do not use children 4 to under 6 years of age Do not use unless directed by a doctor children 6 to under 12 years of age 1 to 2 teaspoonfuls (5 ml to 10 ml)
Side Effects
No adverse reactions listed in FDA label.
Warnings & Precautions
Warnings Do not use ■ with any other product containing diphenhydramine, even one used on skin ■ to make a child sleepy Ask a doctor before use if the child has ■ glaucoma ■ a breathing problem such as chronic bronchitis
Drug Interactions
No interactions listed. Consult your pharmacist.
Contraindications
See prescribing information.
Storage & Handling
Store as directed on label.