Diphenhydramine (Benadryl®)
Dosing Guidelines for Benadryl® (diphenhydramine)
1 teaspoonful (5 mL) = 12.5 mg of diphenhydramine
| Age (in years) | Dose |
| Under 6 years | Ask a doctor |
| 6 years to 12 years | 1 - 2 teaspoonfuls (12.5 mg to 25 mg) |
| 12 years old or older | 2-4 teaspoonfuls (25 mg to 50 mg) |
May repeat every 4 to 6 hours, not to exceed 6 doses in 24 hours.
**Always use a dropper, oral syringe, or cup with clear markings. Do not use household utensils to measure a dose because they can vary.