Class: SSRI FDA Indications: OCD Off-Label Use: Bulimia Nervosa, Depression, Panic Disorder, PTSD, Social Anxiety
Forms: 25, 50, 100mg tablet Dose Range: 50-300 mg/day Starting: Start at 50 mg qd then ↑ by 50 mg increments q4-7 days, usual dose range 100-300mg qd Stopping: A gradual reduction in the dose rather than abrupt cessation is recommended whenever possible
Contraindications: Concomitant use of MAOIs Serious Side Effects: Serotonin syndrome; ↑ risk of SI in children and young adults; may impair platelet aggregation; SIADH Side Effects: headache, sedation/somnolence, insomnia, dizziness, anxiety, diarrhea, nausea, xerostomia, anorexia, anorgasmia, weakness/asthenia
t½: 16 (9-28)° TMAX: 1.5-8° Substrate of: 1A2, 2D6 Inhibits: 1A2 & 2C19 (potent, even at low doses), 2B6, 2C9 & 3A4 (moderate), 2D6 (weak); Induces: ∅ Active Metabolites: ∅
- a veritable "pan-inhibitor," possible interactions via CYP inhibition are legion
particular attention should be paid to other drugs with narrow therapeutic indices e.g. theophylline, warfarin, phenytoin & 3° TCAs; be cautious when adding any drug to fluvoxamine–"Start low, go slow!"
caffeine is also a 1A2 substrate, so Luvox can make that morning cup of coffee a lot more stimulating!
a 1A2 substrate itself, its own concentrations can be decreased by cigarette smoke's 1A2 induction
nonlinear pharmacokinetics; inhibits its own metabolism
- σ1R properties may explain rapid-onset effects on anxiety & insomnia, and pro-cognitive effects in treatment of psychotic depression & schizophrenia
- may have ↓ sexual SEs than other SSRIs
- can be cautiously combined with clomipramine for treatment-resistant OCD
- considered to be the "weight neutral" SSRI
- actually ↓'s QTc by -5 msec
Category C—A case study of 26 infants exposed to fluvoxamine in utero reported that exposure was not associated with increased risk of malformations, lower birth weights, or younger gestational age.
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Last updated May 17 2021 17:22:54. Disclaimer: This website does not provide medical advice, nor is it a substitute for clinical judgment.
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