Rivastigmine is used to treat confusion (dementia)
related to Alzheimer's disease and to Parkinson's disease. Rivastigmine
does not cure either of these diseases, but it may improve memory,
awareness, and the ability to perform daily functions. This medication
works by restoring the balance of natural substances (neurotransmitters) in
the brain.
Read the Patient Information Leaflet if available from
your pharmacist before you start taking rivastigmine and each time you get
a refill. If you have any questions, ask your doctor or
pharmacist.
Take this medication by mouth with food as directed by
your doctor, usually twice daily (in the morning and evening). The dosage
is based on your medical condition and response to treatment. To reduce
your risk of side effects (such as nausea and diarrhea), your doctor will
start this medication at a low dose and gradually increase your dose over 2
to 4 weeks.
Use this medication regularly in order to get the most
benefit from it. To help you remember, take it at the same times each day.
Do not stop taking it unless your doctor instructs you to do so. Do not use
this drug more often than prescribed.
If you do not take rivastigmine for 3 or more days in
row, talk with your doctor before starting again. You may need to restart
at a lower dose.
Tell your doctor if your condition gets
worse.
Nausea, vomiting, loss of appetite/weight loss,
diarrhea, weakness, dizziness, drowsiness, and shakiness (tremor) may occur
as your body adjusts to the drug. These effects usually occur when you
start the medication or increase the dose and then lessen. If any of these
effects last or get worse, tell your doctor or pharmacist
promptly.
Remember that this medication has been prescribed
because your doctor has judged that the benefit to you is greater than the
risk of side effects. Many people using this medication do not have serious
side effects.
Tell your doctor right away if you have any serious side
effects, including:
- slow heartbeat
- black stools
- vomit that looks like coffee grounds
- severe stomach/abdominal pain
- seizures
- trouble urinating
Get medical help right away if you have any very serious
side effects, including:
- fast/irregular heartbeat
- severe dizziness
- fainting
A very serious allergic reaction to this drug is rare.
However, get medical help right away if you notice any symptoms of a
serious allergic reaction, including:
- rash
- itching/swelling (especially of the face/tongue/throat)
- severe dizziness
- trouble breathing
This is not a complete list of possible side effects. If
you notice other effects not listed above, contact your doctor or
pharmacist.
In the US - Call your doctor for medical advice about side effects.
You may report side effects to FDA at 1-800-FDA-1088 or at
www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about
side effects. You may report side effects to Health Canada at
1-866-234-2345.
Before taking rivastigmine, tell your doctor or
pharmacist if you are allergic to it (including having a rash while using
rivastigmine patches); or if you have any other allergies. This product may
contain inactive ingredients, which can cause allergic reactions or other
problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or
pharmacist your medical history, especially of:
- breathing/lung problems (such as asthma, COPD-chronic
obstructive pulmonary disease)
- stomach/intestinal problems (such as ulcers, bleeding)
- heart disease (such as sick sinus syndrome, other conduction
disorders)
- fainting
- seizures
- problems urinating (such as due to enlarged prostate)
Rivastigmine may cause a condition that affects the
heart rhythm (QT prolongation). QT prolongation can rarely cause serious
(rarely fatal) fast/irregular heartbeat and other symptoms (such as severe
dizziness, fainting) that need medical attention right
away.
The risk of QT prolongation may be increased if you have
certain medical conditions or are taking other drugs that may cause QT
prolongation. Before using rivastigmine, tell your doctor or pharmacist of
all the drugs you take and if you have any of the following
conditions:
- certain heart problems (heart failure, slow heartbeat, QT
prolongation in the EKG)
- family history of certain heart problems (QT prolongation in
the EKG, sudden cardiac death)
Low levels of potassium or magnesium in the blood may
also increase your risk of QT prolongation. This risk may increase if you
use certain drugs (such as diuretics/"water pills") or if you have
conditions such as severe sweating, diarrhea, or vomiting. Talk to your
doctor about using rivastigmine safely.
This drug may make you dizzy or drowsy. Alcohol or
marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use
machinery, or do anything that needs alertness until you can do it safely.
Limit alcoholic beverages. Talk to your doctor if you are using marijuana
(cannabis).
Before having surgery, tell your doctor or dentist about
all the products you use (including prescription drugs, nonprescription
drugs, and herbal products).
Older adults may be more sensitive to the side effects
of this drug, especially QT prolongation (see above).
During pregnancy, this medication should be used only
when clearly needed. Discuss the risks and benefits with your
doctor.
It is unknown if this medication passes into breast
milk. Consult your doctor before breastfeeding.
Drug interactions may change how your medications work
or increase your risk for serious side effects. This document does not
contain all possible drug interactions. Keep a list of all the products you
use (including prescription/nonprescription drugs and herbal products) and
share it with your doctor and pharmacist. Do not start, stop, or change the
dosage of any medicines without your doctor's approval.
Some products that may interact with this drug
include:
- aspirin/nonsteroidal anti-inflammatory drugs (NSAIDs, such as
ibuprofen, naproxen)
- metoclopramide
Check all prescription and nonprescription medicine
labels carefully since many medications contain pain relievers/fever
reducers (NSAIDs such as aspirin, ibuprofen, or naproxen) that if taken
together with rivastigmine may increase your risk for stomach/intestinal
bleeding. However, if your doctor has told you to take low-dose aspirin to
prevent heart attack or stroke (usually 81-162 milligrams a day), you
should keep taking the aspirin unless your doctor tells you not to. Ask
your doctor or pharmacist for more details.
If someone has overdosed and has serious symptoms such
as passing out or trouble breathing, call 911. Otherwise, call a poison
control center right away. US residents can call 1-800-222-1222. Canada
residents can call 1-844-764-7669. Symptoms of overdose may include:
nausea/vomiting that is severe or doesn't stop, excessive sweating, very
slow heartbeat, slow or shallow breathing, seizures.
Do not share this medication with others.
Lab and/or medical tests (such as weight) should be done
while you are taking this medication. Keep all medical and lab
appointments. Consult your doctor for more details.
If you miss a dose, take it as soon as you remember. If
it is near the time of the next dose, skip the missed dose. Take your next
dose at the regular time. Do not double the dose to catch
up.
Store at room temperature away from light and moisture.
Do not store in the bathroom. Keep all medications away from children and
pets.
Do not flush medications down the toilet or pour them
into a drain unless instructed to do so. Properly discard this product when
it is expired or no longer needed. Consult your pharmacist or local waste
disposal company.