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Details

Stereochemistry ABSOLUTE
Molecular Formula C24H25NO4.C6H12O7
Molecular Weight 587.6149
Optical Activity UNSPECIFIED
Defined Stereocenters 7 / 7
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of Benzgalantamine Gluconate

SMILES

OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O.COC1=CC=C2CN(C)CC[C@@]34C=C[C@@H](C[C@@H]3OC1=C24)OC(=O)C5=CC=CC=C5

InChI

InChIKey=YOMFDYFCNHSIAU-MXJKWOHVSA-N
InChI=1S/C24H25NO4.C6H12O7/c1-25-13-12-24-11-10-18(28-23(26)16-6-4-3-5-7-16)14-20(24)29-22-19(27-2)9-8-17(15-25)21(22)24;7-1-2(8)3(9)4(10)5(11)6(12)13/h3-11,18,20H,12-15H2,1-2H3;2-5,7-11H,1H2,(H,12,13)/t18-,20-,24-;2-,3-,4+,5-/m01/s1

HIDE SMILES / InChI

Description
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/mesh/68005702 | https://www.ncbi.nlm.nih.gov/pubmed/12177686

Galantamine (RAZADYNE®, galantamine hydrobromide) is a benzazepine derived from norbelladine. It is found in Galanthus and other Amaryllidaceae. It is a reversible, competitive acetylcholinesterase inhibitor that is used for the treatment of mild to moderate dementia of the Alzheimer’s type. Although the etiology of cognitive impairment in Alzheimer’s disease is not fully understood, it has been reported that acetylcholine-producing neurons degenerate in the brains of patients with Alzheimer’s disease. The degree of this cholinergic loss has been correlated with degree of cognitive impairment and density of amyloid plaques (a neuropathological hallmark of Alzheimer’s disease). While the precise mechanism of galantamine’s (RAZADYNE®, galantamine hydrobromide) action is unknown, it is postulated to exert its therapeutic effect by enhancing cholinergic function. This is accomplished by increasing the concentration of acetylcholine through reversible inhibition of its hydrolysis by acetylcholinesterase. If this mechanism is correct, galantamine’s (RAZADYNE®, galantamine hydrobromide) effect may lessen as the disease process advances and fewer cholinergic neurons remain functionally intact. There is no evidence that galantamine (RAZADYNE®, galantamine hydrobromide) alters the course of the underlying dementing process.

Originator

Curator's Comment: # Janssen Pharmaceuticals, a division of Ortho-McNeil-Jannsen Pharmaceuticals

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
0.35 µM [IC50]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Palliative
RAZADYNE

Approved Use

Galantamine hydrobromide is a cholinesterase inhibitor indicated for the treatment of mild to moderate dementia of the Alzheimer’s type.

Launch Date

2001
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
84.3 ng/mL
24 mg single, oral
dose: 24 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
GALANTAMINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
1050 ng × h/mL
24 mg single, oral
dose: 24 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
GALANTAMINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
8.53 h
24 mg single, oral
dose: 24 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
GALANTAMINE plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
Funbound

Funbound

ValueDoseCo-administeredAnalytePopulation
82%
GALANTAMINE plasma
Homo sapiens
population: UNKNOWN
age: UNKNOWN
sex: UNKNOWN
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
8 mg 2 times / day steady, oral
Dose: 8 mg, 2 times / day
Route: oral
Route: steady
Dose: 8 mg, 2 times / day
Sources:
unhealthy, 90 years
Health Status: unhealthy
Age Group: 90 years
Sex: M
Sources:
Disc. AE: Nightmares...
AEs leading to
discontinuation/dose reduction:
Nightmares (1 patient)
Sources:
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Other AEs: Nausea, Vomiting...
Other AEs:
Nausea (42%)
Vomiting (21%)
Diarrhea (16%)
Anorexia (15%)
Weight loss (8%)
Dizziness (15%)
Sources:
AEs

AEs

AESignificanceDosePopulation
Nightmares 1 patient
Disc. AE
8 mg 2 times / day steady, oral
Dose: 8 mg, 2 times / day
Route: oral
Route: steady
Dose: 8 mg, 2 times / day
Sources:
unhealthy, 90 years
Health Status: unhealthy
Age Group: 90 years
Sex: M
Sources:
Anorexia 15%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Dizziness 15%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Diarrhea 16%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Vomiting 21%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Nausea 42%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
Weight loss 8%
32 mg 1 times / day steady, oral
Highest studied dose
Dose: 32 mg, 1 times / day
Route: oral
Route: steady
Dose: 32 mg, 1 times / day
Sources:
unhealthy, adult
Health Status: unhealthy
Age Group: adult
Sex: unknown
Sources:
OverviewDrug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
inconclusive [Activation 15.8489 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >10 uM]
no [IC50 >133 uM]
no [IC50 >133 uM]
no [IC50 >133 uM]
no [IC50 >133 uM]
no
no
no
no
no (co-administration study)
Comment: Coadministration of Galantamine (multiple doses) had no effect on the pharmacokinetics of R-/S-Warfarin (CYP2C9 substrate)
Page: 4, 20, (ClinPharm) 34, 38-39
yes [IC50 0.6 uM]
no (co-administration study)
Comment: Coadministration of Galantamine (multiple doses) had no effect on the pharmacokinetics of Digoxin (P-gp substrate)
Page: 4, 20, (ClinPharm) 38, 40
Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
major [Km 187 uM]
yes (co-administration study)
Comment: Vmax = 5.2 nmol/mg protein/h (Pharmacogenetics, 9, 661 (1999)); Coadministration (multiple doses) of ketoconazole (strong CYP3A4 inhibitor, CYP2D6 inhibitor) and paroxetin (strong CYP2D6 inhibitor) increased Galantamine AUC by 30% and 40%.
Page: 2, 4, 19-20, (ClinPharm) 15, 38, 42-23, 45
major
yes (co-administration study)
Comment: Coadministration (multiple doses) of ketoconazole (strong CYP3A4 inhibitor, CYP2D6 inhibitor) increased Galantamine AUC by 30%. Coadministration of erythromycin (moderate CYP3A4 inhibitor) increased Galantamine AUC by only 10%.
Page: 2, 4, 19-20, (ClinPharm) 15, 38, 42-44
yes
Tox targets
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Galantamine for Alzheimer's disease.
2001
Pharmacokinetic profiles of current therapies for Alzheimer's disease: implications for switching to galantamine.
2001
Galantamine for Alzheimer's disease.
2001
Clinical and cost-effectiveness of donepezil, rivastigmine and galantamine for Alzheimer's disease: a rapid and systematic review.
2001
Cholinesterase inhibitors for Alzheimer's disease.
2001
[Perspectives for drug treatment in Alzheimer's disease].
2001 Dec
Galantamine: new preparation. The fourth cholinesterase inhibitor for Alzheimer's disease.
2001 Dec
Unsafe prescription medication switching recommendations.
2001 Dec
[Alzheimer dementia. Comparison of the effectiveness of cholinesterase inhibitors and gingko].
2001 Dec 13
Allosteric sensitization of nicotinic receptors by galantamine, a new treatment strategy for Alzheimer's disease.
2001 Feb 1
Galantamine: effect on nicotinic receptor binding, acetylcholinesterase inhibition, and learning.
2001 Feb 13
Galantamine introduced in Europe.
2001 Jan-Feb
Featured CME topic: dementia. Medication update.
2001 Jul
Galantamine (reminyl) for Alzheimer's disease.
2001 Jun 25
Differential increase in cerebrospinal fluid-acetylcholinesterase after treatment with acetylcholinesterase inhibitors in patients with Alzheimer's disease.
2001 Mar 16
APOE genotype: no influence on galantamine treatment efficacy nor on rate of decline in Alzheimer's disease.
2001 Mar-Apr
The pharmacological rationale for treating vascular dementia with galantamine (Reminyl).
2001 May
Alzheimer's disease and related disorders.
2001 May
Effects of a flexible galantamine dose in Alzheimer's disease: a randomised, controlled trial.
2001 Nov
[New theory! Galantamine and nicotinic-cholinergic transmission].
2002
A non-cholinergic, trophic action of acetylcholinesterase on hippocampal neurones in vitro: molecular mechanisms.
2002
Unconventional ligands and modulators of nicotinic receptors.
2002 Dec
New drugs 2002, part 1.
2002 Jan
A rapid TLC bioautographic method for the detection of acetylcholinesterase and butyrylcholinesterase inhibitors in plants.
2002 Jan-Feb
Switching cholinesterase inhibitors in patients with Alzheimer's disease.
2002 Jun
Evidence that the clinical effects of cholinesterase inhibitors are related to potency and targeting of action.
2002 Jun
The tolerability and safety of cholinesterase inhibitors in the treatment of dementia.
2002 Jun
The efficacy of cholinesterase inhibitors in treating the behavioural symptoms of dementia.
2002 Jun
[Rivastigmine: a review of its clinical effectiveness].
2002 Nov 1-15
[Treatment of Alzheimer's disease].
2002 Nov 1-15
Use of galantamine to treat vascular dementia.
2002 Nov 9
Acetylcholinesterase inhibitory activity of some Amaryllidaceae alkaloids and Narcissus extracts.
2002 Oct 11
The cholinergic approach for the treatment of vascular dementia: evidence from pre-clinical and clinical studies.
2002 Oct-Nov
Adjuvant galantamine administration improves negative symptoms in a patient with treatment-refractory schizophrenia.
2002 Sep-Oct
Patents

Sample Use Guides

The recommended starting dosage of RAZADYNE® tablets is 4 mg twice a day (8 mg/day). The dosage should be increased to the initial maintenance dosage of 8 mg twice a day (16 mg/day) after a minimum of 4 weeks. A further increase to 12 mg twice a day (24 mg/day) should be attempted after a minimum of 4 weeks at 8 mg twice a day (16 mg/day). Dosage increases should be based upon assessment of clinical benefit and tolerability of the previous dose.
Route of Administration: Oral
In Vitro Use Guide
Galanthamine was evaluated as inhibitor of human acetylcholinesterase activity from samples of postmortem human brain, fresh brain cortex biopsies and human erythrocytes. The respective galanthamine concentration exerting a half maximal effect (IC50) on acetylcholinesterase in postmortem human brain frontal cortex was 3.2 uM versus 2.8 uM in the hippocampus region. In addition, galanthamine was 10-fold less potent in inhibiting the enzyme activity from human brain that from human erythrocytes.
Name Type Language
Benzgalantamine Gluconate
USAN  
Official Name English
ZUNVEYL
Preferred Name English
MEMOGAIN GLUCONATE
Common Name English
D-Gluconic acid, compd. with (4aS,6R,8aS)-4a,5,9,10,11,12-hexahydro-3-methoxy-11-methyl-6H-benzofuro[3a,3,2-ef][2]benzazepin-6-yl benzoate (1:1)
Systematic Name English
Galantamine benzoate gluconate
Common Name English
GLN-1062 GLUCONATE
Code English
ALPHA-1062 gluconate
Code English
GLUCONIC ACID SALT OF GALANTAMINE BENZOATE
Common Name English
BENZGALANTAMINE GLUCONATE [USAN]
Common Name English
Code System Code Type Description
PUBCHEM
155491118
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY PUBCHEM
SMS_ID
300000056194
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY
USAN
MN-102
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY
FDA UNII
LN7PMJ4P57
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY
NCI_THESAURUS
C211785
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY
CAS
1542321-58-3
Created by admin on Wed Apr 02 03:26:29 GMT 2025 , Edited by admin on Wed Apr 02 03:26:29 GMT 2025
PRIMARY