Drilldown: Medicines

None (3) · Lamotrigine (1)

Belsomra (1) · Dayvigo (1) · Lamictal (IR), Lamictal XR, Lamictal ODT (1) · Quviviq (1)

Dual orexin receptor antagonist (DORA) (3) · the first approved (1) · [[:Category:Anticonvulsants|Anticonvulsant]] (1) · [[:Category:Mood stabilizers|Mood stabilizer]] (1) · [[:Category:Sodium channel blockers|Sodium channel blocker]] (1)

None (2) · Competitive antagonist at OX1R and OX2R. Faster receptor association/dissociation kinetics than suvorexant (~16 sec dissociation vs ~57 sec) hypothesized to support sleep onset, with sufficient duration for maintenance. (1) · Competitive antagonist at OX1R and OX2R. First-in-class DORA. Receptor dissociation slower than lemborexant or daridorexant. (1)

Insomnia (sleep onset and/or maintenance) in adults (FDA-approved August 2014). Also studied for insomnia in mild-moderate Alzheimer disease. (1) · Insomnia (sleep onset and/or maintenance) in adults (FDA-approved Dec 2019) (1) · Insomnia (sleep onset and/or sleep maintenance) in adults (FDA-approved Jan 2022) (1) · '"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"', '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"' (1)

None (1) · 10 mg PO 30 min before bedtime (with ≥7 hours of sleep planned) (1) · 25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) · 5 mg PO at bedtime; may increase to 10 mg if inadequate (1)

25 mg, 50 mg tablets (1) · 5 mg, 10 mg tablets (1) · 5 mg, 10 mg, 15 mg, 20 mg tablets (1) · IR tablets 25, 100, 150, 200 mg; chewable dispersible tablets 2, 5, 25 mg; ODT 25, 50, 100, 200 mg; XR tablets 25, 50, 100, 200, 250, 300 mg (1)

10 mg/d (1) · 20 mg/d (1) · 400 mg/day (bipolar monotherapy); 700 mg/day (epilepsy with enzyme-inducing comedication) (1) · 50 mg/d (1)

Oral (4)

Antiepileptic effect within days at therapeutic level; mood-stabilizing effect emerges over weeks (1) · ~30 min (3)

None · 24 hours · 4-6 hours · 12 hours · 6-8 hours · Daily dosing · 8-12 hours · 12-24 hours · Hours · Hours per application · 24 hours (HS dosing) · 24 hours (once-daily dosing) · 24 h · N/A · N/A (replacement) · Variable · ~7-8 hours · 3-5 hours · 4-6 hours (IR); 24 hours (ER) · 6-12 hours

Other values:

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~12 hours (1) · ~17-19 hours (longer than daridorexant) (1) · ~25-33 hours alone; ~15 hours with enzyme inducers; '''≥60 hours with valproate''' (UGT inhibition)'"`UNIQ--ref-00000025-QINU`"' (1) · ~8 hours (shorter than suvorexant and lemborexant) (1)

~44% (1) · ~62% (1) · ~82% (1) · ~98% (oral)'"`UNIQ--ref-00000026-QINU`"' (1)

'''Among the safest mood stabilizers in pregnancy''' with reassuring monotherapy registry data, in sharp contrast to valproate. Estrogen-containing contraceptives accelerate lamotrigine metabolism, requiring dose adjustments at start and stop of contraception'"`UNIQ--ref-00000027-QINU`"' (1) · Limited data; avoid (3)

Rx, Schedule IV (US) (3) · [[USLegal:Prescription only|Rx-only]] in US. Carries the FDA '''Boxed Warning for serious skin reactions''' including Stevens-Johnson syndrome and toxic epidermal necrolysis, with the risk concentrated in the first 2-8 weeks of therapy and elevated by rapid titration'"`UNIQ--ref-00000028-QINU`"' (1)