Chemical Component Summary

FormulaC17 H21 N O3
Molecular Weight287.354
Isomeric SMILESC[N@@]1CC[C@@]23C=C[C@@H](C[C@@H]2Oc4c3c(ccc4OC)C1)O

Chemical Details

Formal Charge0
Atom Count42
Chiral Atom Count3
Bond Count45
Aromatic Bond Count6

Drug Info: DrugBank

DrugBank IDDB00674 
Groups approved
DescriptionGalantamine is a tertiary alkaloid and reversible, competitive inhibitor of the acetylcholinesterase (AChE) enzyme, which is a widely studied therapeutic target used in the treatment of Alzheimer's disease.[A1018] First characterized in the early 1950s, galantamine is a tertiary alkaloid that was extracted from botanical sources, such as _Galanthus nivalis_.[A201968] Galantamine was first studied in paralytic and neuropathic conditions, such as myopathies and postpolio paralytic conditions, and for reversal of neuromuscular blockade.[A182993,A201968] Following the discovery of its AChE-inhibiting properties, the cognitive effects of galantamine were studied in a wide variety of psychiatric disorders such as mild cognitive impairment, cognitive impairment in schizophrenia and bipolar disorder, and autism; however, re-development of the drug for Alzheimer’s disease did not commence until the early 1990s due to difficulties in extraction and synthesis.[A201968] Galantamine blocks the breakdown of acetylcholine in the synaptic cleft, thereby increasing acetylcholine neurotransmission. It also acts as an allosteric modulator of the nicotinic receptor, giving its dual mechanism of action clinical significance.[A182993] The drug was approved by the FDA in 2001 for the treatment of mild to moderate dementia of the Alzheimer's type. As Alzheimer's disease is a progressive neurodegenerative disorder, galantamine is not known to alter the course of the underlying dementing process. Galantamine works to block the enzyme responsible for the breakdown of acetylcholine in the synaptic cleft, thereby enhancing cholinergic neuron function and signalling. Under this hypothesized mechanism of action, the therapeutic effects of galantamine may decrease as the disease progression advances and fewer cholinergic neurons remain functionally intact.[L13571] It is therefore not considered to be a disease-modifying drug.[A203558] Galantamine is marketed under the brand name Razadyne, and is available as oral immediate- and extended-release tablets and solution.[L13571]
  • Galantamina
  • Galantamine
  • (-)-Galanthamine
  • Galanthamine
  • Galantamine hydrobromide
Brand Names
  • Galantamine hydrobromide
  • Teva-galantamine ER
  • Razadyne
  • Pendo-galantamine ER
  • Reminyl -(8mg)
IndicationGalantamine is indicated for the treatment of mild to moderate dementia of the Alzheimer’s type.[L13571]
  • Alkaloids
  • Amaryllidaceae Alkaloids
  • Anti-Dementia Drugs
  • Autonomic Agents
  • Benzazepines
CAS number357-70-0

Drug Targets

NameTarget SequencePharmacological ActionActions
Neuronal acetylcholine receptor subunit alpha-7MRCSPGGVWLALAASLLHVSLQGEFQRKLYKELVKNYNPLERPVANDSQP...unknownallosteric modulator
Muscle nicotinic acetylcholine receptorRLVAKLFKDYSSVVRPVEDHRQVVEVTVGLQLIQLINVDEVNQIVTTNVR...unknownallosteric modulator
View More
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682

Related Resource References

Resource NameReference
Pharos CHEMBL659
PubChem 9651