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Dual AChEI and BuChEI inhibitor — dementia Pregnancy: Should not be used during pregnancy unless clearly necessary - no clinical data on exposed pregnancies; rivastigmine and/or metabolites crossed the placenta in pregnant animals and increased gestation time was seen in rat peri/postnatal studies. Women on rivastigmine should not breast-feed.

Rivastigmine

Brand names: Exelon

Used in: Delirium & Cognitive Impairment

Rivastigmine is a cholinesterase inhibitor used for the symptoms of Alzheimer's disease and Parkinson's disease dementia; it comes as capsules and a transdermal patch.

Auto-extracted from the source labelling — not yet independently clinician-verified. These values were distilled from the UK SPC (or the US label where noted) but have not had a clinician sign-off. Confirm against the current SmPC before prescribing.

Adult dose

Dose: Initial 1.5 mg twice a day. If well tolerated after a minimum of two weeks the dose may be increased to 3 mg twice a day, and subsequently to 4.5 mg and then 6 mg twice a day, each increase being based on good tolerability of the current dose and after a minimum of two weeks at that dose level. Effective maintenance dose 3 to 6 mg twice a day
Route: Oral (hard capsules swallowed whole)
Frequency: Twice a day, with morning and evening meals
Max: 6 mg twice a day (recommended maximum daily dose)
Treatment should be initiated and supervised by a physician experienced in the diagnosis and treatment of Alzheimer's dementia or dementia associated with Parkinson's disease, and only started if a caregiver is available to monitor intake regularly. Maintain patients on their highest well-tolerated dose. If adverse reactions occur (nausea, vomiting, abdominal pain, loss of appetite), or weight decrease, or worsening of extrapyramidal symptoms such as tremor in Parkinson's disease dementia, these may respond to omitting one or more doses; if they persist, temporarily reduce to the previous well-tolerated dose or discontinue. Re-initiation: if treatment is interrupted for more than three days, restart at 1.5 mg twice daily and re-titrate as above. Reassess clinical benefit regularly, especially below 3 mg twice a day; if after 3 months of maintenance treatment the rate of decline in dementia symptoms is not favourably altered, discontinue. Treatment effect has not been studied in placebo-controlled trials beyond 6 months. No relevant use in the paediatric population for Alzheimer's disease. This SPC is for the ORAL CAPSULE - transdermal patch dosing is not covered by the fetched label and must be sourced separately. US cross-check (verify vs UK SPC): for Parkinson's disease dementia the US label uses a minimum of 4 weeks at each dose step rather than 2 weeks, and advises careful titration and monitoring in patients weighing less than 50 kg. NOTE: the fetched eMC bundle did not include §4.5, so the interaction list below is drawn from the US label and is not a complete interaction profile.

Dose adjustments

Renal

No dose adjustment is necessary for patients with mild to moderate renal impairment; because exposure is increased, titrate closely according to individual tolerability as these patients may experience more dose-dependent adverse reactions.

Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.

US labelling (FDA)

Reference — US labelling, may differ from UK

Alzheimer’s Disease (2.1): Initial Dose: Initiate treatment with 1.5 mg twice a day. Dose Titration: After a minimum of 2 weeks, if tolerated, increase dose to 3 mg twice a day and further to 4.5 mg twice a day and 6 mg twice a day if tolerated with a minimum of 2 weeks at each dose Parkinson’s Disease Dementia (PDD) (2.2): Initial Dose: Initiate treatment with 1.5 mg twice a day. Dose Titration: After a minimum of 4 weeks, if tolerated, increase dose to 3 mg twice a day and further to 4.5 mg twice a day and 6 mg twice a day if tolerated with a minimum of 4 weeks at each dose. Rivastigmine tartrate capsules should be taken with meals in divided doses in the morning and evening (2.1, 2.2). …

Source: US FDA prescribing information (openFDA / DailyMed), label dated 2022-03-21. Accessed 2026-06-12. US dosing and indications can differ from UK practice — use UK sources for prescribing decisions.

Contraindications

  • Hypersensitivity to rivastigmine, to other carbamate derivatives or to any of the excipients
  • Previous history of application site reactions suggestive of allergic contact dermatitis with rivastigmine patch

Side effects

  • Nausea (38%)
  • Vomiting (23%) - severe vomiting has rarely been associated with oesophageal rupture
  • Diarrhoea, abdominal pain and dyspepsia
  • Anorexia, decreased appetite and weight loss; dehydration
  • Dizziness, headache, somnolence and tremor
  • Agitation, confusion, anxiety and nightmares

Interactions

  • Metoclopramide - concomitant use not recommended because of the risk of additive extrapyramidal adverse reactions
  • Cholinomimetic medications - cholinergic effects may be increased; concomitant use not recommended unless clinically necessary
  • Anticholinergic medications (e.g. oxybutynin, tolterodine) - rivastigmine may interfere with their activity; concomitant use not recommended unless clinically necessary
  • Beta-blockers, especially cardioselective agents including atenolol - additive bradycardic effects resulting in syncope; concomitant use not recommended

Clinical monograph

How it works

It inhibits acetylcholinesterase (and butyrylcholinesterase), increasing acetylcholine to support cognition; it eases symptoms rather than modifying the disease.

Prescribing in practice

  • Cholinergic effects (nausea, vomiting, diarrhoea, weight loss, bradycardia) occur — titrate slowly; the patch can improve gastrointestinal tolerance.
  • Use caution in cardiac conduction problems, active peptic ulcer disease and significant airways disease.
  • With the patch, remove the old one before applying a new one — serious overdose has occurred from wearing multiple patches.

Monitoring

Review cognition and function, heart rate, weight and gastrointestinal tolerance.

Counselling the patient

  • Nausea or appetite loss can occur, especially when increasing the dose.
  • With patches, remove the old patch before applying a new one and rotate sites.
  • Report fainting, a slow pulse or significant weight loss.

Evidence & guidelines

Recommended for Alzheimer's disease and Parkinson's disease dementia per NICE NG97/TA217.

Reference: NICE TA217; NICE NG97; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).

Related

Curated clinical cross-links plus same-class fallbacks.