Basic Information

Drug ID DDPD01043 ...
Drug Name Memantine
Molecular Weight 179.3018
Molecular Formula C12H21N
CAS Number 19982-08-2
SMILES CC12CC3CC(C)(C1)CC(N)(C3)C2
External Links
DRUGBANK DB01043
T3DB T3D2967
PubChem Compound 4054
PDR 2193
Drugs.com Drugs.com Drug Page

Experimental Physicochemical Property

Property Name Property Value Unit Raw Value Raw Unit Reference
Log P 3.28 - 3.28 - https://www.lundbeck.com/upload/ca/en/files/pdf/pm/Ebixa.pdf
Boiling Point 239.8 239.8 https://www.lookchem.com/Memantine/
Melting Point 153.0 153 https://www.lookchem.com/Memantine/
pKa 10.27 - 10.27 - https://www.lundbeck.com/upload/ca/en/files/pdf/pm/Ebixa.pdf

Pharmacokinetic/ Toxicokinetic Property

Property Name Property Value Unit Raw Value Raw Unit Annotation Factor Reference
T Max 5.0 h 3-7 h PO, oral; food; food → ; DRUGBANK
Volume of Distribution 10.0 L/kg 9.0-11 L/kg Average volume of distribution; DRUGBANK
Half-life 80.0 h 60-100 h DRUGBANK
Toxicity LD50 467.5 mg/kg 437-498 mg/kg PO, oral; mouse; DRUGBANK
Toxicity LD50 349.0 mg/kg 328-370 mg/kg PO, oral; Rattus, Rat; DRUGBANK
Eliminate Route 48.0 % ~48 % Urinary excretion; Unchanged drug; DRUGBANK
Protein Binding 45.0 % 45 % DRUGBANK

Maximum Dosage

Property Name Property Value Unit Raw Value Raw Unit Annotation Brand Name Component Reference
Max dose for adults 20.0 mg/day 20 mg/day PO, oral Namenda memantine hydrochloride PDR
Max dose for adults 28.0 mg/day 28 mg/day PO, oral Namenda memantine hydrochloride PDR
Max dose for geriatric 20.0 mg/day 20 mg/day PO, oral Namenda memantine hydrochloride PDR
Max dose for geriatric 28.0 mg/day 28 mg/day PO, oral Namenda memantine hydrochloride PDR

Drug Property Radar Chart

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Note: Center: Q1-1.5*IQR, Edge: Q3+1.5*IQR; Q1: Quantile 1, Q3: Quantile 3, IQR: Q3-Q1