Drilldown: Medicines

Cyproheptadine (hydrochloride) (1) · Hydroxyzine (hydrochloride; pamoate salt) (1) · Promethazine (hydrochloride) (1)

Periactin (US brand discontinued; generic widely available) (1) · Phenergan, Promethegan (suppositories) (1) · Vistaril (pamoate), Atarax (HCl, discontinued in US as brand) (1)

Research material · Classic Psychedelic · Stimulant · Opioid · Sedative-Hypnotic · Phenethylamine · Tryptamine · Benzodiazepine · Botanical · [[:Category:Antihypertensives|Antihypertensive]] · Dissociative · Anticonvulsant · Antidepressant · Plant Medicine · Analgesic · Antipsychotic · Antiparkinsonian · Empathogen · Neuroleptic · Cathinone

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None (1) · '"`UNIQ--vote-00000017-QINU`"' Anticholinergic and sedating, with the standard first-generation antihistamine Beers-list concerns in elderly patients'"`UNIQ--ref-00000018-QINU`"'. (1) · '"`UNIQ--vote-0000001D-QINU`"' '''QT prolongation''' risk at high doses prompted the FDA's 2015 caution against use in patients with prolonged QT or with concurrent QT-prolonging medicines'"`UNIQ--ref-0000001E-QINU`"'. (1)

'"`UNIQ--vote-00000019-QINU`"', '"`UNIQ--vote-0000001A-QINU`"', '"`UNIQ--vote-0000001B-QINU`"', '"`UNIQ--vote-0000001C-QINU`"', '"`UNIQ--vote-0000001D-QINU`"' (1) · '"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"', '"`UNIQ--vote-00000020-QINU`"', '"`UNIQ--vote-00000021-QINU`"' (1) · '"`UNIQ--vote-0000001F-QINU`"', '"`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 mg PO BID-QID. Nausea/vomiting: 12.5-25 mg PO/IM/IV/PR every 4-6 hours. Motion sickness: 25 mg PO 30-60 minutes before travel. '''Pediatric <2 years: contraindicated''' (1) · Allergy: 4 mg PO TID. Serotonin syndrome: 12 mg loading dose PO or by nasogastric tube, then 2 mg every 2 hours until clinical improvement. Appetite stimulation: 2-4 mg PO TID-QID (1) · Anxiety: 25-50 mg PO QID. Pruritus: 25 mg PO TID-QID. Insomnia: 25-50 mg PO at bedtime. Pediatric: 50-100 mg/day divided (1)

Tablets 10, 25, 50 mg (HCl); capsules 25, 50, 100 mg (pamoate); oral suspension 25 mg/5 mL; injection 25, 50 mg/mL (IM only, never IV) (1) · Tablets 12.5, 25, 50 mg; oral syrup 6.25 mg/5 mL; suppositories 12.5, 25, 50 mg; injection 25 mg/mL and 50 mg/mL (1) · Tablets 4 mg; oral syrup 2 mg/5 mL (1)

100 mg/day (adult) (1) · 32 mg/day adult; weight-based pediatric ceiling (1) · 400 mg/day theoretical; in practice rarely exceeds 200 mg/day (1)

IM (1) · intramuscular (1) · IV (with caution) (1) · Oral (3) · rectal (1)

15-30 minutes (oral) (1) · 20 minutes (oral); 5 minutes (IV) (1) · 30-60 minutes (1)

4-6 hours (2) · 6-8 hours (1)

12-15 hours'"`UNIQ--ref-00000022-QINU`"' (1) · 14-25 hours (longer in elderly and hepatic impairment)'"`UNIQ--ref-00000026-QINU`"' (1) · 8-16 hours'"`UNIQ--ref-0000001E-QINU`"' (1)

~25% (oral, with extensive first-pass)'"`UNIQ--ref-00000023-QINU`"' (1) · ~80% (oral)'"`UNIQ--ref-00000027-QINU`"' (1) · ~95% (oral)'"`UNIQ--ref-0000001F-QINU`"' (1)

Limited human data; older agent with substantial use experience.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Limited human data; older agent with substantial use experience; some signal for first-trimester exposure but not conclusive.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Older agent with substantial use experience, including in hyperemesis gravidarum; broadly reassuring observational data'"`UNIQ--ref-00000024-QINU`"' (1)

None (1) · [[USLegal:Prescription only|Rx-only]] in US (1) · [[USLegal:Prescription only|Rx-only]] in US. Not a controlled substance, which is a meaningful clinical advantage over the benzodiazepine alternatives for short-term anxiety'"`UNIQ--ref-00000028-QINU`"' (1)