Drilldown: Medicines

Bisoprolol (1) · Memantine ER / Donepezil (1) · Naltrexone (1) · Nebivolol (1)

Bystolic (1) · Namzaric (1) · ReVia (oral, 50 mg tablets), Depade (oral, generic), Vivitrol (extended-release IM injection 380 mg monthly); Contrave (naltrexone + bupropion ER tablets for weight management) (1) · Zebeta (1)

Beta Blocker (2) · Cardioselective (β1) (1) · Cardioselective (β1) + vasodilator (1) · Combined cholinesterase inhibitor + NMDA antagonist (1) · [[:Category:AUD medicines|Alcohol use disorder medicine]] (1) · [[:Category:Opioid antagonists|Opioid antagonist (mu and kappa)]] (1) · [[:Category:OUD medicines|Opioid use disorder medicine]] (1)

None (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)

None (1) · '"`UNIQ--vote-00000468-QINU`"' (1) · '"`UNIQ--vote-0000059D-QINU`"' (1) · '"`UNIQ--vote-00000636-QINU`"', '"`UNIQ--vote-00000637-QINU`"', '"`UNIQ--vote-00000638-QINU`"' (1)

None (1) · 2.5–5 mg daily (HTN); 1.25 mg daily (HFrEF, slow titration) (1) · 5 mg daily (1) · For patients already stable on memantine 28 mg/d + donepezil 10 mg/d, switch to one capsule daily of equivalent strength (1)

2.5, 5, 10, 20 mg tabs (1) · 5, 10 mg tabs (1) · 7/10, 14/10, 21/10, 28/10 mg ER capsules (memantine ER / donepezil) (1) · Oral tablets 50 mg (ReVia, Depade, generics); Vivitrol extended-release IM suspension 380 mg single-dose vial; Contrave (naltrexone 8 mg + bupropion 90 mg ER tablets); compounded 1, 2, 3, 4.5 mg tablets/capsules for LDN (1)

20 mg/d (1) · 28/10 mg/d (1) · 40 mg/d (1) · 50 mg/day oral; 380 mg/4 weeks IM (Vivitrol); 32 mg + 360 mg naltrexone/bupropion daily (Contrave maximum after titration) (1)

intramuscular (depot) (1) · Oral (3) · Oral (capsule whole or opened/sprinkled on applesauce) (1)

1–2 h (2) · Component effects accumulate over weeks (1) · Oral peak plasma 1 hour; therapeutic opioid blockade within hours of first dose. IM Vivitrol: peak plasma 2-3 days; therapeutic blockade through the dosing interval. (1)

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) · Naltrexone parent ~4 hours (oral); 6-beta-naltrexol (active metabolite) ~13 hours. Vivitrol depot terminal half-life 5-10 days with sustained release from microspheres maintaining blockade for the 4-week dosing interval.'"`UNIQ--ref-0000004F-QINU`"' (1) · ~10 h (CYP2D6 extensive metabolizers); up to 31 h (poor metabolizers) (1) · ~60–80 h (memantine); ~70 h (donepezil) (1)

~100% both components (1) · ~12% (extensive metabolizers); ~96% (poor metabolizers) (1) · ~5-40% (oral, highly variable due to extensive first-pass metabolism; mean ~5-10% for parent naltrexone with the majority of pharmacologic effect coming from 6-beta-naltrexol). IM Vivitrol bypasses first-pass entirely.'"`UNIQ--ref-00000050-QINU`"' (1) · ~90% (low first-pass) (1)

None (1) · Category C (2) · Not relevant (geriatric problem) (1)

None (1) · Rx-only in US (3)