Brand Reference: Namenda
| Metric | Verified Benchmark | Source |
|---|---|---|
| Memantine Hydrochloride RxNorm Concept ID | 6719 | U.S. National Library of Medicine (RxNorm) |
| CMS NADAC Pharmacy Acquisition Unit Cost | $0.0880 / unit | CMS Medicaid NADAC Weekly Feed |
| Walk-In Chain Pharmacy Cash Average | $78.00 / mo | CMS NADAC + U.S. Retail Markup Index |
| Mark Cuban Cost Plus Wholesale Price | $6.80 / mo | Cost Plus Drugs Wholesale Feed |
| Community Mean Out-of-Pocket Paid | $9.50 / mo | 15 Zero-PHI Verified Patient Logs |
Selectively plugs open NMDA receptor Ca2+ channels only during pathological low-level tonic glutamate excitotoxicity while rapidly dissociating during physiological high-frequency synaptic LTP bursts—protecting hippocampal neurons without dissociative psychotomimetic anesthesia.
Across 15 community cost disclosures for Memantine Hydrochloride (Namenda), cash buyers routing around $78.00 retail markups capture a 91% discount ($6.80/mo benchmark vs $0.0880 NADAC acquisition).
Following administration (5 mg PO daily week 1), Memantine Hydrochloride achieves 100% oral bioavailability and 2–4 weeks step titration onset, governed by a 60–80 hours terminal half-life through minimal hepatic hydroxylation; 74% excreted unchanged via ph-sensitive renal tubular secretion.
Before initiating Memantine Hydrochloride at 5 mg PO daily week 1, clinical safety checklists rule out severe renal tubular alkalosis (carbonic anhydrase inhibitors cut clearance 80%). Logged tolerability patterns center on dizziness (11% of reports), constipation (9% of reports), headache (7% of reports).
Across 15 verified cash-pay logs, Memantine Hydrochloride achieves a 82.90% Worth-It rating with out-of-pocket spend averaging $9.50/mo versus $78.00/mo walk-in retail.
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Switched to Cost Plus Drugs at 5 mg PO daily week 1 for Memantine Hydrochloride; monthly out-of-pocket dropped to $5.98 compared with $78.00 retail.
Completed 10 weeks on Memantine Hydrochloride (5 mg PO BID week 2). Zero notable side effects on steady dosing.
Consistent biomarker response on 10 mg PO BID target Memantine Hydrochloride sourced via Compounding ($7.89/mo cash pay without insurance prior authorization).