Benadryl (diphenhydramine HCI) Dosage chart
Weight (pounds) | Elixir 12.5mg/5ml | Fastmelt Chewable 12.5mg tablets | Tablets/capsules and quick dissolve strips 25mg |
8-9 | 1.25 ml (1/4 tsp) | ||
10-11 | 2 ml | ||
12-16 | 2.5 ml (1/2 tsp) | ||
17-21 | 3.75 ml (3/4 tsp) | ||
22-25 | 4 ml | ||
26-33 | 5 ml (1 tsp) | 1 Fastmelt | |
33-39 | 6 ml | 1 Fastmelt | |
40-45 | 7 ml (1 ½ tsp) | 1 ½ Fastmelt | |
46-52 | 9 ml | 1 ½ Fastmelt | |
53-58 | 10 ml (2 tsp) | 2 Fastmelt | 1 tab/cap/strip |
59-65 | 11 ml | 2 Fastmelt | 1 tab/cap/strip |
66-72 | 12 ml ( 2 ½ tsp) | 2 ½ Fastmelt | 1 ½ tabs/caps/strips |
73-80 | 14ml | 2 ½ Fastmelt | 1 ½ tabs/caps/strips |
81-88 | 15 ml (3 tsp) | 3 Fastmelt | 1 ½ tabs/caps/strips |
89-99 | 17 ml | 3 Fastmelt | 2 tabs/caps/strips |
100-109 | 18 ml | 4 Fastmelt | 2 tabs/caps/strips |
≥ 110 | 20 ml (4 tsp) | 4 Fastmelt | 2 tabs/caps/strips |
*This is the maximum recommended safe dosage based on your child’s weight. If the listed dosage makes your child too sleepy, you may need to decrease the amount of medicine given in each dose.