Benadryl Allergy

Uses .

[ diphenhydramine ]

antihistamine for relieving allergic rhinitis, sneezing, itching, hives, itchy/watery eyes, itchy nose/throat/skin; promoting sleep; preventing motion sickness

Dosing .

allergy sx

[ 6-11 yo (oral tablet/capsule) ]

Dose: 1 tab/cap PO q4-6h prn; Max: 6 tabs or caps/24h

[ 6-11 yo (oral solution) ]

Dose: 5-10 mL PO q4-6h prn; Max: 60 mL/24h

[ 12 yo and older (oral tablet/capsule) ]

Dose: 1-2 tabs/caps PO q4-6h prn; Max: 12 tabs or caps/24h

[ 12 yo and older (oral solution) ]

Dose: 10-20 mL PO q4-6h prn; Max: 120 mL/24h

insomnia, short-term tx (off-label)

[ 12 yo and older (oral tablet/capsule) ]

Dose: 1-2 tabs/caps PO qhs prn; Info: give 30min before bedtime

[ 12 yo and older (oral solution) ]

Dose: 10-20 mL PO qhs prn; Info: give 30min before bedtime

motion sickness prevention (off-label)

[ 6-11 yo (oral tablet/capsule) ]

Dose: 1 tab/cap PO q4-6h prn; Start: 30min before event; Max: 6 tabs or caps/24h

[ 6-11 yo (oral solution) ]

Dose: 5-10 mL PO q4-6h prn; Start: 30min before event; Max: 60 mL/24h

[ 12 yo and older (oral tablet/capsule) ]

Dose: 1-2 tabs/caps PO q4-6h prn; Start: 30min before event; Max: 12 tabs or caps/24h

[ 12 yo and older (oral solution) ]

Dose: 10-20 mL PO q4-6h prn; Start: 30min before event; Max: 120 mL/24h

pruritus/urticaria (off-label)

[ 6-11 yo (oral tablet/capsule) ]

Dose: 1 tab/cap PO q4-6h prn; Max: 6 tabs or caps/24h

[ 6-11 yo (oral solution) ]

Dose: 5-10 mL PO q4-6h prn; Max: 60 mL/24h

[ 12 yo and older (oral tablet/capsule) ]

Dose: 1-2 tabs/caps PO q4-6h prn; Max: 12 tabs or caps/24h

[ 12 yo and older (oral solution) ]

Dose: 10-20 mL PO q4-6h prn; Max: 120 mL/24h

renal dosing

[ no adjustment ]

renal impairment: no adjustment

HD/PD: no adjustment; no supplement

hepatic dosing

[ not defined ]