Drilldown: Medicines

None · Codeine · 1,4-Butanediol · 1B-LSD · 1cP-LSD · 1P-LSD · 1V-LSD · 2-AI · 2-FA · 2-FDCK · 2-FMA · 25B-NBOH · 25B-NBOMe · 25C-NBOH · 25C-NBOMe · 25I-NBOH · 25I-NBOMe · 25N-NBOMe · 2C-B · 2C-B-FLY

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Celexa (1)

[[:Category:Antidepressants|Antidepressant]] (1) · [[:Category:SSRIs|Selective serotonin reuptake inhibitor (SSRI)]] (1)

'"`UNIQ--vote-0000001D-QINU`"' CYP2C19 + CYP3A4 metabolism, with CPIC PGx guidance: poor CYP2C19 metabolizers have ~3-fold higher exposure and benefit from a lower starting dose; ultrarapid metabolizers may have inadequate response'"`UNIQ--ref-0000001E-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)

20 mg PO once daily; titrate to 40 mg/day after 1 week if tolerated. Elderly (>60) and hepatic impairment: 20 mg/day ceiling (1)

Tablets 10, 20, 40 mg; oral solution 10 mg/5 mL (1)

'''20 mg/day in adults >60 years''' per FDA's 2011-2012 QT-prolongation warning; 40 mg/day in adults ≤60 (1)

Oral (1)

Antidepressant effect over 1-2 weeks; full clinical effect 4-6 weeks (1)

24 hours (once-daily dosing) (1)

~35 hours'"`UNIQ--ref-00000026-QINU`"' (1)

None · 100% (IV) · ~100% from subcutaneous depot · ~80% (oral)'"`UNIQ--ref-00000027-QINU`"' · 70–90% (oral) · ~100% (oral)'"`UNIQ--ref-0000001C-QINU`"' · ~50% (oral)'"`UNIQ--ref-00000021-QINU`"' · ~95% · '''Saturable''' via the LAT-1 amino-acid transporter, producing nonlinear pharmacokinetics: ~60% at 300 mg single dose, falling to ~35% at 1200 mg single dose'"`UNIQ--ref-0000002A-QINU`"' · 10-20% (oral; reduced by food, calcium, antacids, PPIs, tea/coffee; enhanced by ascorbate) · 100% (IV); essentially complete (oral) · 100% (IV); rapidly neutralized by gastric acid (oral) · 16-21% capsule, 25% suspension (oral; iron and antacids reduce absorption substantially)'"`UNIQ--ref-000009E5-QINU`"' · 25 mg: ~29%; 50 mg: ~35%; food reduces absorption'"`UNIQ--ref-00000C4F-QINU`"' · 30-40% (oral; increases with repeated dosing as gastric pH rises)'"`UNIQ--ref-000000DF-QINU`"' · 40-45% (oral; not significantly affected by food)'"`UNIQ--ref-0000025C-QINU`"' · 40-80% (oral); reduced by food, calcium, iron, PPIs, fiber; take fasting with water'"`UNIQ--ref-00000037-QINU`"' · 42-58% (oral; dose-dependent)'"`UNIQ--ref-00000AEF-QINU`"' · 50-60% (oral; decreased with food, but food given anyway for GI tolerance)'"`UNIQ--ref-00000019-QINU`"' · 60-70% PO at low doses; saturable at high doses (parenteral routes preferred above 15-25 mg/week)'"`UNIQ--ref-000007C9-QINU`"'

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Observational signal for persistent pulmonary hypertension of the newborn (small absolute risk) and neonatal adaptation syndrome with third-trimester exposure.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

[[USLegal:Prescription only|Rx-only]] in US. Carries the antidepressant '''Boxed Warning''' for suicidality in children, adolescents, and young adults'"`UNIQ--ref-00000028-QINU`"' (1)