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Medication Guide — DONEPEZIL HYDROCHLORIDE

Patient-friendly FDA guidance and safety information.

Last updated · May 12, 2026Source: DailyMed ↗

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Revised: November 2024                                                                                                             ID#: 279138

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PATIENT PACKAGE INSERT

Donepezil Hydrochloride Tablets USP, 23 mg

(doe nep′ e zil hye″ droe klor′ ide)

Rx Only

Read this Patient Information that comes with donepezil hydrochloride tablets before you start taking it and each time you get a refill. There may be new information. This leaflet does not take the place of talking with your doctor about Alzheimer's disease or treatment for it. If you have questions, ask the doctor or pharmacist.

What are Donepezil Hydrochloride Tablets?

Donepezil hydrochloride comes as donepezil hydrochloride film-coated tablets in dosage strengths of 5 mg, 10 mg and 23 mg.

Donepezil hydrochloride is a prescription medicine to treat mild, moderate, and severe Alzheimer's disease. Donepezil hydrochloride can help with mental function and with doing daily tasks. Donepezil hydrochloride does not work the same in all people. Some people may:

  • Seem much better
  • Get better in small ways or stay the same
  • Get worse over time but slower than expected
  • Not change and then get worse as expected

Donepezil hydrochloride does not cure Alzheimer's disease. All patients with Alzheimer's disease get worse over time, even if they take donepezil hydrochloride.

Donepezil hydrochloride has not been approved as a treatment for any medical condition in children.

Who should not take donepezil hydrochloride tablets?

Do not take donepezil hydrochloride tablets if you are allergic to any of the ingredients in donepezil hydrochloride tablets or to medicines that contain piperidines. Ask your doctor if you are not sure. See the end of this leaflet for a list of ingredients in donepezil hydrochloride tablets.

What should I tell my doctor before taking donepezil hydrochloride tablets?

Tell the doctor about all of your present or past health problems and conditions.

Include:

  •   Any heart problems including problems with irregular, slow, or fast heartbeats
  •   Asthma or lung problems
  •   A seizure
  •   Stomach ulcers
  •   Difficulty passing urine
  •   Liver or kidney problems
  •   Trouble swallowing tablets
  •   Present pregnancy or plans to become pregnant. It is not known if donepezil hydrochloride can harm an unborn baby.
  •   Present breast-feeding. It is not known if donepezil hydrochloride passes into breast milk. Talk to your doctor about the best way to feed your baby if you take donepezil hydrochloride.

Tell the doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal products. Donepezil hydrochloride and other medicines may affect each other.

Be particularly sure to tell the doctor if you take aspirin or medicines called nonsteroidal anti-inflammatory drugs (NSAIDs). There are many NSAID medicines, both prescription and non-prescription. Ask the doctor or pharmacist if you are not sure if any of your medicines are NSAIDs. Taking NSAIDs and donepezil hydrochloride together may make you more likely to get stomach ulcers.

Donepezil hydrochloride taken with certain medicines used for anesthesia may cause side effects. Tell the responsible doctor or dentist that you take donepezil hydrochloride before you have:

  • surgery
  • medical procedures
  • dental surgery or procedures.

Know the medicines that you take. Keep a list of all your medicines. Show it to your doctor or pharmacist before you start a new medicine.

How should you take donepezil hydrochloride tablets?

What are the possible side effects of donepezil hydrochloride tablets?

Donepezil hydrochloride tablets may cause the following serious side effects:

  •   slow heartbeat and fainting. This happens more often in people with heart problems. Call your doctor right away if you feel faint or lightheaded while taking donepezil hydrochloride tablets.
  •   more stomach acid. This raises the chance of ulcers and bleeding, especially when taking donepezil hydrochloride tablets 23 mg. The risk is higher for people who have had ulcers, or take aspirin or other NSAIDs.
  •   worsening of lung problems in people with asthma or other lung disease.
  •   seizures.
  •   difficulty passing urine.

Call your doctor right away if you have:

  • fainting.
  • heartburn or stomach pain that is new or won't go away.
  • nausea or vomiting, blood in the vomit, dark vomit that looks like coffee grounds.
  • bowel movements or stools that look like black tar.
  • new or worse asthma or breathing problems.
  • seizures.
  • difficulty passing urine.

The most common side effects of donepezil hydrochloride tablets are:

  • anausea
  • diarrhea
  • not sleeping well
  • vomiting
  • muscle cramps
  • feeling tired
  • not wanting to eat

These side effects may get better after you take donepezil hydrochloride tablets for a while. This is not a complete list of side effects with donepezil hydrochloride tablets. For more information, ask 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.You may also report side effect to Lupin Pharmaceuticals Inc. at 1-800-399-2561.

How should donepezil hydrochloride tablets be stored?

Store donepezil hydrochloride tablets at room temperature between 59° to 86°F (15° to 30°C).

Keep donepezil hydrochloride tablets and all medicines out of the reach of children.

General information about donepezil hydrochloride tablets

Medicines are sometimes prescribed for conditions that are not mentioned in this Patient Information Leaflet. Do not use donepezil hydrochloride tablets for a condition for which it was not prescribed. Do not give donepezil hydrochloride tablets to other people, even if they have the same symptoms or condition. It may harm them.

This leaflet summarizes the most important information about donepezil hydrochloride tablets. If you would like more information, talk with your doctor. You can ask your pharmacist or doctor for information about donepezil hydrochloride tablets that is written for health professionals.

For more information, go to www.lupinpharmaceuticals.com or call Lupin Pharmaceuticals, Inc. at 1-800-399-2561

What are the ingredients in donepezil hydrochloride tablets?

Active Ingredient: Donepezil Hydrochloride

Inactive Ingredients: colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, sodium starch glycolate. The film coating includes hypromellose, iron oxide red, polyethylene glycol, talc and titanium dioxide.

LUPIN and the  are registered trademarks of Lupin Pharmaceuticals, Inc.

Manufactured for:

Lupin Pharmaceuticals, Inc.

Naples, FL 34108

United States.

Manufactured by:

Lupin Limited

Goa 403 722

INDIA.

Sources

RxCUI: 1100184

NDC: 68180-527

Last fetched: May 12, 2026

Source: DailyMed ↗

⚠️ Disclaimer

This information is for educational purposes only and is not medical advice. Always consult your doctor, pharmacist, or other licensed healthcare professional before starting, stopping, or changing any medicine. Read full medical disclaimer.