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Galantamine

Cholinesterase Inhibitor · Management of Dementia

Cholinesterase InhibitorManagement of Dementia
CDSCO approved
EXCRETION
not curated
INTERACTIONS
6 major
SEVERE in our sources
PREGNANCY
not curated
Top interactionssee all 6
  • BupropionSevereDatabaseDDInter
  • IohexolSevereDatabaseDDInter
  • IopamidolSevereDatabaseDDInter
  • OzanimodSevereDatabaseDDInter

Mechanism

Galantamine is an acetylcholinesterase inhibitor. It increases the concentration of acetylcholine in the synaptic clefts by inhibiting its breakdown. This action enhances cholinergic neurotransmission, which is thought to be beneficial in cognitive symptoms of Alzheimer's disease.

Indications

Mild-to-moderate Alzheimer’s diseaseMild-to-moderate dementia with Lewy bodies (off-label)Vascular dementia with suspected co-morbid Alzheimer’s disease, Parkinson’s disease dementia, or dementia with Lewy bodies (off-label)Symptomatic treatment of mild-moderate AD dementiaOther neurodegenerative diseases with cholinergic deficitsalzheimer’s disease

Dosing

Hepatic adjustment
Manufacturer advises caution (risk of increased exposure in mild to moderate impairment; no information available in severe impairment). Dose escalation should be performed according to individual tolerability in mild to moderate impairment.

Pharmacokinetics

Bioavailability
100 (91–110)%
Protein binding
18%
Metabolism
CYP2D6, CYP3A4
Excretion
20 (18–22)%

Contraindications

  • Intolerance to acetylcholinesterase inhibitors
  • Frontotemporal dementia
  • Cognitive impairment caused by multiple sclerosis

Side effects

Common
Aggressionagitationappetite decreasedcommon colddiarrhoeadizzinessfatiguegastrointestinal disordershallucinationheadacheinjurymuscle crampsnauseapainskin reactionssleep disorderssyncopeurinary incontinencevomitingGI distressmuscle crampingabnormal dreams
Serious
  • Bradycardia
  • gastrointestinal haemorrhage
  • hypersalivation
  • seizure
  • Cardiac conduction disorders
  • extrapyramidal symptoms
  • hepatic disorders
  • neuroleptic malignant syndrome
  • rhabdomyolysis
  • syncope

Drug interactions

Bupropion
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Iohexol
Severe
Database

Clinical effect not specified

Source: DDInter

Iopamidol
Severe
Database

Clinical effect not specified

Source: DDInter

Ozanimod
Severe
Database

Clinical effect not specified

Source: DDInter

Siponimod
Severe
Database

Clinical effect not specified

Source: DDInter

Tramadol
Severe
Database

Clinical effect not specified

Source: DDInter

6 additional low-confidence interactions hidden — those rows lack a documented mechanism or management plan in our sources.

Related guidelines

Other Cholinesterase Inhibitor drugs

Ask House about Galantamine

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: KD Tripathi 7e, Goodman & Gilman 14e, Katzung, BNF·Verified: 2026-05-10 · House clinical team