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Donepezil

(Donepezil)

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  • Donepezil Overview

    Donepezil is used to treat confusion (dementia) related to Alzheimer's disease. It does not cure Alzheimer's disease, but it may improve memory, awareness, and the ability to function. Donepezil is an enzyme blocker that works by restoring the balance of natural substances (neurotransmitters) in the brain.

  • How to Use Donepezil

    Read the Patient Information Leaflet if available from your pharmacist before you start taking donepezil and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take Donepezil by mouth with or without food as directed by your doctor, usually once daily just before bedtime. If you experience sleep problems (insomnia), talk to your doctor about switching to a morning dose. If you are taking the 23-milligram strength tablets, swallow them whole. Do not split, crush, or chew these tablets. Doing so can increase the risk of side effects. Dosage of Donepezil 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 Donepezil at a low dose and gradually increase your dose over weeks to months. Follow your doctor's instructions carefully. Do not increase your dose or use Donepezil more often than prescribed. If you do not take donepezil for 7 or more days in row, talk with your doctor before starting again. You may need to start at a lower dose to decrease the risk of side effects. Use Donepezil regularly in order to get the most benefit from it. To help you remember, take it at the same time each day. Do not stop taking it unless your doctor instructs you to do so. It may take a several weeks before you get the full benefit of Donepezil. Tell your doctor if your condition worsens.

  • Donepezil Precautions

    Before taking donepezil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Donepezil may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using Donepezil, tell your doctor or pharmacist your medical history,breathing problems (such as asthma, chronic obstructive pulmonary disease), fainting, seizures, stomach/intestinal disease (such as ulcers, bleeding), trouble urinating (such as enlarged prostate). Donepezil 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). Donepezil 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 donepezil,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 donepezil safely. 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 Donepezil, especially QT prolongation (see above). During pregnancy, Donepezil should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if Donepezil passes into breast milk. Consult your doctor before breast-feeding.

  • Donepezil Misdose

    If you miss a dose of Donepezil, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

  • Donepezil Interactions

    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.aspirin/non-steroidal anti-inflammatory drugs (NSAIDs, such as ibuprofen, naproxen). 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 donepezil may increase your risk for stomach/intestinal bleeding. Low-dose aspirin, as prescribed by your doctor for specific medical reasons such as heart attack or stroke prevention (usually 81-162 milligrams a day), should be continued. Consult your doctor or pharmacist for more details.

  • Donepezil Side Effects

    Nausea, vomiting, diarrhea, loss of appetite/weight loss, dizziness, drowsiness, weakness, trouble sleeping, shakiness (tremor), or muscle cramps may occur as your body adjusts to the drug. These effects usually last 1-3 weeks and then lessen. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that Donepezil has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using Donepezil do not have serious side effects.trouble urinating, severe stomach/abdominal pain, black stools, vomit that looks like coffee grounds, seizures. Get medical help right away if you have any very serious side effects,slow/fast/irregular heartbeat, severe dizziness, fainting. A very serious allergic reaction to Donepezil is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction,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. 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.

  • Donepezil Storage

    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 Donepezil when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

IMPORTANT DISCLAIMER: All medical content is supplied by a third-party company who is independent from this web site. As such, this web site cannot guarantee the reliability, accuracy, and /or medical efficacy of the information provided. In all circumstances, you should seek the advice of a health professional pertaining to drug, treatment and/or medical condition advice. Note that not all products are shipped by our contracted Canadian pharmacy. This website contracts with dispensaries around the world that ship products directly to our customers. Some of the jurisdiction include but are not limited to United Kingdom, Europe, Turkey, India, Canada, Vanuatu, Mauritius, and USA. The items within your order may be shipped from any one of these jurisdictions depending on the availability and cost of the products at the time you place your order. The products are sourced from these countries as well as others. Please note that the product appearance may vary from actual product received depending on availability.