Drilldown: Medicines

None (3) · Bisoprolol (1) · Memantine ER / Donepezil (1) · Nebivolol (1) · Primidone (1)

Belsomra (1) · Bystolic (1) · Dayvigo (1) · Mysoline (1) · Namzaric (1) · Quviviq (1) · Zebeta (1)

Beta Blocker (2) · Cardioselective (β1) (1) · Cardioselective (β1) + vasodilator (1) · Combined cholinesterase inhibitor + NMDA antagonist (1) · Dual orexin receptor antagonist (DORA) (3) · the first approved (1) · [[:Category:Anticonvulsants|Anticonvulsant]] (1) · [[:Category:Barbiturates|Barbiturate (parent compound)]] (1) · [[:Category:Tremor medicines|Tremor medicine]] (1)

None (1) · 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) · Donepezil: reversible AChE inhibitor, increases synaptic acetylcholine. Memantine: uncompetitive low-affinity NMDA receptor antagonist, dampens pathological glutamate overactivation while preserving normal synaptic signaling. Targets two distinct mechanisms in Alzheimer's. (1) · Highly β1-selective adrenergic antagonist. Greater selectivity than metoprolol or atenolol. (1) · The d-enantiomer is a highly β1-selective antagonist; the l-enantiomer triggers endothelial nitric-oxide–mediated vasodilation. Unique among beta blockers for this NO mechanism. (1) · '"`UNIQ--vote-00000013-QINU`"' Strong CYP3A4 induction via the phenobarbital metabolite produces many interactions (reduces oral contraceptives, warfarin, many psychotropics). Essential-tremor efficacy is the unique pharmacological selling point'"`UNIQ--ref-00000014-QINU`"'. (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-00000015-QINU`"', '"`UNIQ--vote-00000016-QINU`"' (1) · '"`UNIQ--vote-00000468-QINU`"' (1) · '"`UNIQ--vote-0000059D-QINU`"' (1) · '"`UNIQ--vote-00000636-QINU`"', '"`UNIQ--vote-00000637-QINU`"', '"`UNIQ--vote-00000638-QINU`"' (1)

10 mg PO 30 min before bedtime (with ≥7 hours of sleep planned) (1) · 2.5–5 mg daily (HTN); 1.25 mg daily (HFrEF, slow titration) (1) · 25 mg PO at bedtime (no titration); may increase to 50 mg if 25 mg inadequate (1) · 5 mg daily (1) · 5 mg PO at bedtime; may increase to 10 mg if inadequate (1) · For patients already stable on memantine 28 mg/d + donepezil 10 mg/d, switch to one capsule daily of equivalent strength (1) · Seizures: 100-125 mg PO at bedtime x 3 days, then BID, then TID, escalating to 750-1500 mg/day. Essential tremor: 25-50 mg PO at bedtime, titrate slowly to 250-750 mg/day (1)

2.5, 5, 10, 20 mg tabs (1) · 25 mg, 50 mg tablets (1) · 5 mg, 10 mg tablets (1) · 5 mg, 10 mg, 15 mg, 20 mg tablets (1) · 5, 10 mg tabs (1) · 7/10, 14/10, 21/10, 28/10 mg ER capsules (memantine ER / donepezil) (1) · Tablets 50, 250 mg (1)

10 mg/d (1) · 2 g/day (seizures); typically much lower for essential tremor (1) · 20 mg/d (2) · 28/10 mg/d (1) · 40 mg/d (1) · 50 mg/d (1)

Oral (6) · Oral (capsule whole or opened/sprinkled on applesauce) (1)

1–2 h (2) · Anticonvulsant effect emerges with slow titration over weeks; tremor effect over weeks (1) · Component effects accumulate 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:

Search

9–12 h (1) · Primidone 5-15 hours; '''phenobarbital active metabolite 50-150 hours'''; PEMA (phenylethylmalonamide) active metabolite 16 hours'"`UNIQ--ref-00000017-QINU`"' (1) · ~10 h (CYP2D6 extensive metabolizers); up to 31 h (poor metabolizers) (1) · ~12 hours (1) · ~17-19 hours (longer than daridorexant) (1) · ~60–80 h (memantine); ~70 h (donepezil) (1) · ~8 hours (shorter than suvorexant and lemborexant) (1)

~100% both components (1) · ~12% (extensive metabolizers); ~96% (poor metabolizers) (1) · ~44% (1) · ~62% (1) · ~82% (1) · ~90% (low first-pass) (1) · ~90% (oral)'"`UNIQ--ref-00000018-QINU`"' (1)

Category C (2) · Limited data; avoid (3) · Not relevant (geriatric problem) (1) · Substantial teratogenic signal (barbiturate class effects including neonatal withdrawal and hemorrhagic disease of newborn).<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

Rx, Schedule IV (US) (3) · Rx-only in US (3) · [[USLegal:Prescription only|Rx-only]] in US. '''Federally non-controlled despite being a barbiturate''', a paradoxical situation given that its primary active metabolite phenobarbital is Schedule IV'"`UNIQ--ref-00000019-QINU`"' (1)