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RIVASTIGMINE

brandsClassRIVASTIGMINE commonly prescribed forHow RIVASTIGMINE worksHow long until RIVASTIGMINE worksNotable Side EffectsLife Threatening Side Effectsweight gainsedationWhat to do about RIVASTIGMINE side effectsusual dosage rangeDosage Formslong term usehabit formingRenal ImpairmentHepatic ImpairmentCardiac ImpairmentElderlyChildren and AdolescentsPregnancyBreast Feeding

THERAPEUTICS

brands

  • Rivadem
  • Exelon
  • Ritas

Class

  • Neuroscience-based Nomenclature: acetylcholine enzyme inhibitor (ACh-EI)
  • Cholinesterase inhibitor (acetylcholinesterase inhibitor and butyrylcholinesterase inhibitor); cognitive enhancer

RIVASTIGMINE commonly prescribed for

(Bold for FDA approved)

• Alzheimer disease (mild to moderate)
• Parkinson’s disease dementia (mild to moderate)

• Memory disorders in other conditions
• Mild cognitive impairment

How RIVASTIGMINE works

• Pseudoirreversibly inhibits centrally active acetylcholinesterase, making more acetylcholine available

• Increased availability of acetylcholine compensates in part for degenerating cholinergic neurons in neocortex that regulate memory

• Inhibits butyrylcholinesterase

• May release growth factors or interfere with amyloid deposition

How long until RIVASTIGMINE works

• May take up to 6 weeks before any improvement in baseline memory or behavior is evident

• May take months before any stabilization in degenerative course is evident

SIDE EFFECTS

Notable Side Effects

• Nausea, diarrhea, vomiting, appetite loss, weight loss, dyspepsia, increased gastric acid secretion

• Headache, dizziness

• Fatigue, asthenia, sweating

Life Threatening Side Effects

• Rare seizures

• Rare syncope

weight gain

unusual

unusual

sedation

unusual

unusual

What to do about RIVASTIGMINE side effects

• Wait

• Wait

• Wait

• Use slower dose titration

• Consider lowering dose, switching to a different agent or adding an appropriate augmenting agent

DOSING AND USE

usual dosage range

• Oral: 6–12 mg/day in 2 doses

• Transdermal: 9.5 mg/24 hours once daily

Dosage Forms

• Capsule 1.5 mg, 3 mg, 4.5 mg, 6 mg

• Transdermal 9 mg/5 cm2 (4.6 mg/24 hours), 18 mg/10 cm2 (9.5 mg/24 hours), 27 mg/15 cm2 (13.3 mg/24 hours)

long term use

• Drug may lose effectiveness in slowing degenerative course of Alzheimer disease after 6 months

• Can be effective in many patients for several years

habit forming

• No

SPECIAL POPULATIONS

Renal Impairment

• Dose adjustment not necessary; titrate to point of tolerability

Hepatic Impairment

• Dose adjustment not necessary; titrate to point of tolerability

Cardiac Impairment

• Should be used with caution

• Syncopal episodes have been reported with the use of rivastigmine

Elderly

• Some patients may tolerate lower doses better

• Use of cholinesterase inhibitors may be associated with increased rates of syncope, bradycardia, pacemaker insertion, and hip fracture in older adults with dementia

Children and Adolescents

• Safety and efficacy have not been established

Pregnancy

• Effective June 30, 2015, the FDA requires changes to the content and format of pregnancy and lactation information in prescription drug labels, including the elimination of the pregnancy letter categories; the Pregnancy and Lactation Labeling Rule (PLLR or final rule) applies only to prescription drugs and will be phased in gradually for drugs approved on or after June 30, 2001

• Controlled studies have not been conducted in pregnant women

• Animal studies do not show adverse effects

• Not recommended for use in pregnant women or women of childbearing potential

Breast Feeding

• Unknown if rivastigmine is secreted in human breast milk, but all psychotropics are assumed to be secreted in breast milk

• Recommended either to discontinue drug or bottle feed

• Rivastigmine is not recommended for use in nursing women

Based on data Published online by Cambridge University Press

Compiled by Dr. Jash Ajmera