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Medicines (732)

Medicines > fda max: 300 mg/day (oral)

& routes

: IM

or IV/IM (Buprenex). Oral swallowed: very low bioavailability due to first-pass; not therapeutic.

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Diphenhydramine (hydrochloride; citrate) (1)

Benadryl (oral, injectable, topical), Banophen, Sominex (sleep aid), ZzzQuil, Aler-Dryl (1)

[[:Category:Anticholinergics|Anticholinergic]] (1) · [[:Category:Antiemetics|Antiemetic]] (1) · [[:Category:Antihistamines|First-generation antihistamine (ethanolamine)]] (1) · [[:Category:Sleep aids|Sleep aid]] (1)

'"`UNIQ--vote-0000001D-QINU`"' Major Beers-list concern in elderly patients for cognitive and fall risks. CYP2D6 substrate. At massive overdose, also produces sodium channel blockade with cardiac toxicity'"`UNIQ--ref-0000001E-QINU`"'. '"`UNIQ--effect-0000001F-QINU`"' (1)

'"`UNIQ--vote-00000020-QINU`"', '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"', '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"', '"`UNIQ--vote-00000025-QINU`"' (1)

Allergy: 25-50 mg PO every 4-6 hours. Insomnia: 25-50 mg PO at bedtime. IV (acute dystonia, severe allergic reaction): 25-50 mg slow IV push (1)

Tablets 25, 50 mg; capsules; liquid; chewable; topical cream/gel; injection 50 mg/mL (1)

15-30 minutes (oral); 1-2 minutes (IV) (1)

4-6 hours (1)

4-8 hours (longer in elderly, 9-13 hours)'"`UNIQ--ref-00000026-QINU`"' (1)

~40-60% (oral, with significant first-pass)'"`UNIQ--ref-00000027-QINU`"' (1)

Older agent with substantial use experience; broadly considered safe in pregnancy'"`UNIQ--ref-00000028-QINU`"' (1)

[[USLegal:Over-the-counter|OTC]] for most oral and topical formulations; [[USLegal:Prescription only|Rx-only]] for injectable (1)

Showing below up to 1 result in range #1 to #1.

D

Diphenhydramine

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