Drilldown: Medicines

Irbesartan (1) · Memantine ER / Donepezil (1)

Avapro (1) · Namzaric (1)

Combined cholinesterase inhibitor + NMDA antagonist (1) · [[:Category:Angiotensin_receptor_blockers|Angiotensin receptor blocker (ARB)]] (1) · [[:Category:Antihypertensives|Antihypertensive]] (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) · '"`UNIQ--vote-0000083E-QINU`"' CYP2C9 substrate; no clinically active metabolites. The IDNT trial established renoprotection in diabetic nephropathy independent of BP lowering, contributing to the ARB class indication in T2DM with proteinuria'"`UNIQ--ref-0000083F-QINU`"'. (1)

'"`UNIQ--vote-00000468-QINU`"' (1) · '"`UNIQ--vote-00000840-QINU`"', '"`UNIQ--vote-00000841-QINU`"' (1)

150 mg PO once daily; titrate to 300 mg if needed (1) · For patients already stable on memantine 28 mg/d + donepezil 10 mg/d, switch to one capsule daily of equivalent strength (1)

7/10, 14/10, 21/10, 28/10 mg ER capsules (memantine ER / donepezil) (1) · 75, 150, 300 mg tablets (1)

28/10 mg/d (1) · 300 mg/d (1)

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

BP effect within 1-2 weeks (1) · Component effects accumulate over weeks (1)

24 h (1) · 24 hours (1)

None · ~12 hours · ~27 days · ~5 h (caffeine) · '''Autoinduction''': 25-65 hours initially, falling to 12-17 hours after 2-3 weeks of dosing as carbamazepine induces its own CYP3A4 metabolism. Major clinical implication: doses require re-titration after the autoinduction period'"`UNIQ--ref-0000001D-QINU`"' · 0.5-1.5 hours (plasma); pharmacodynamic effect persists 24+ hours'"`UNIQ--ref-000000DE-QINU`"' · 1-1.3 hours'"`UNIQ--ref-000001A1-QINU`"' · 1-1.5 hours'"`UNIQ--ref-00000DE3-QINU`"' · 1-2 hours (parent compound)'"`UNIQ--ref-00000029-QINU`"' · 1-2 hours (parent); 18-30 hours for active metabolite oxypurinol'"`UNIQ--ref-0000030F-QINU`"' · 1-2 hours'"`UNIQ--ref-00000017-QINU`"' · 1-3 days acute, 4-6 days chronic; 4-16 days for norfluoxetine'"`UNIQ--ref-0000004C-QINU`"' · 1-3 hours (normal liver); markedly prolonged in overdose with glutathione depletion'"`UNIQ--ref-00000022-QINU`"' · 1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' · 1.4 hours (parent); 13-24 hours for active metabolite canrenone'"`UNIQ--ref-00000354-QINU`"' · 1.5-2 hours (longer in renal failure)'"`UNIQ--ref-00000222-QINU`"' · 1.5-2 hours'"`UNIQ--ref-00000020-QINU`"' · 10-11 hours (benazeprilat, the active metabolite)'"`UNIQ--ref-00000A22-QINU`"' · 11-13 h (immediate-release); 11-16 h (extended-release) · 11-15 hours'"`UNIQ--ref-00000842-QINU`"'

Other values:

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60-80% (oral; not significantly affected by food)'"`UNIQ--ref-00000843-QINU`"' (1) · ~100% both components (1)

'''Contraindicated in pregnancy''' (all trimesters); fetal renal injury, oligohydramnios, hypocalvaria, hypotension. Stop on detection'"`UNIQ--ref-00000844-QINU`"' (1) · Not relevant (geriatric problem) (1)

Rx-only in US (1) · [[USLegal:Prescription only|Rx-only]] in US (1)