Drilldown: Medicines

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

Bystolic (1) · Namzaric (1) · Patanol, Pataday (ophthalmic, now OTC), Patanase (intranasal) (1) · Zebeta (1)

Beta Blocker (2) · Cardioselective (β1) (1) · Cardioselective (β1) + vasodilator (1) · Combined cholinesterase inhibitor + NMDA antagonist (1) · [[:Category:H1_receptor_antagonists|Histamine H1 receptor antagonist]] (1) · [[:Category:Mast_cell_stabilizers|Mast cell stabilizer]] (1) · [[:Category:Ophthalmic_antihistamines|Ophthalmic antihistamine]] (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-000011D5-QINU`"' Minimal systemic absorption and the dual mechanism underlie its first-line role in seasonal allergic conjunctivitis. Comfort drops without preservatives are available for sensitive patients'"`UNIQ--ref-000011D6-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) · '"`UNIQ--vote-000011D7-QINU`"', '"`UNIQ--vote-000011D8-QINU`"' (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) · Ophthalmic Pataday 0.7%: 1 drop in each eye once daily (24-hour formulation); Patanol 0.1% BID; intranasal Patanase 2 sprays/nostril BID (1)

0.1% (Patanol), 0.2% (Pataday once-daily original), 0.7% (Pataday 24-hour) ophthalmic solutions; 0.6% nasal spray (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)

20 mg/d (1) · 28/10 mg/d (1) · 40 mg/d (1) · Once daily (Pataday 0.7%); BID (other ophthalmic) (1)

intranasal (1) · Oral (2) · Oral (capsule whole or opened/sprinkled on applesauce) (1) · Topical ophthalmic (1)

1–2 h (2) · Component effects accumulate over weeks (1) · Symptom relief within 30-60 minutes (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:

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9–12 h (1) · ~10 h (CYP2D6 extensive metabolizers); up to 31 h (poor metabolizers) (1) · ~3 hours (systemic, when measurable; topical action dominates)'"`UNIQ--ref-000011D9-QINU`"' (1) · ~60–80 h (memantine); ~70 h (donepezil) (1)

Topical with minimal systemic absorption'"`UNIQ--ref-000011DA-QINU`"' (1) · ~100% both components (1) · ~12% (extensive metabolizers); ~96% (poor metabolizers) (1) · ~90% (low first-pass) (1)

Category C (2) · Generally considered safe; minimal systemic exposure.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1) · Not relevant (geriatric problem) (1)

OTC (Pataday ophthalmic) and [[USLegal:Prescription only|Rx-only]] (Patanase intranasal) in US (1) · Rx-only in US (3)