Diphenhidramine (Benadryl) Dose Chart
| Diphenhidramine (Benadryl) Dosage (ANTIHISTAMINE) | |||
| Weight | Liquid 12.5mg/5ml (tsp) | Chewable 12.5mg | Capsules 25mg |
| 17-21 lbs | ¾ tsp = 3.75 ml | Use liquid | Use liquid |
| 22-32 lbs | 1 tsp = 5 ml | 1 chew tabs | Use liquid |
| 33-42 lbs | 1 ½ tsp = 7.5 ml | 1 ½ chew tabs | Use liquid |
| 43-53 lbs | 2 tsp = 10 ml | 2 chew tabs | 1 tab/cap |
| 54-64 lbs | 2 ½ tsp = 12.5 ml | 2 ½ chew tabs | |
| 65-75 lbs | 3 tsp = 15 ml | 3 chew tabs | |
| 76-86 lbs | 3 ½ tsp = 17.5 ml | 3 ½ chew tabs | |
| >86 lbs | 4 tsp = 20 ml | 4 chew tabs | 2 tabs/caps |
• Diphenhidramine (Benadryl) Dosage: determine by finding your child’s weight in the top row of the dosage table.
• Adult dose: 50 mg.
• Repeat every 6-8 hours as needed.
• Don’t use under 1 year of age (reason: it’s a sedative).