Privacy Policy


This notice provides highlights of the full Eisai Inc. and Pfizer Inc. privacy statements and applies to TRUSTe certified Pfizer Web sites.

Visit the TRUSTe Web site to view a complete list of Pfizer Web sites with Validated
Privacy Statements.

View the full Eisai Privacy Statement.

View the full Pfizer Privacy Statement.

Personal Information

Generally, you can access and browse our Web sites without disclosing any personally identifiable information.

If you request information, products, or services from our sites, or ask us to resolve complaints or concerns, we may ask you to provide information such as your name, contact information and other identifying information necessary to fulfill a particular request.

We may also collect information a visitor voluntarily provides through responses to questionnaires, surveys, search functions, and health assessment tools.

Eisai and Pfizer sites use cookies and other technologies to identify users as they move through our Web sites. Your Web browser can be set to allow you to control whether you will accept cookies, reject cookies, or to notify you each time a cookie is sent.

Additional Information from Eisai Inc.

Additional Information from Pfizer Inc.

How to Contact Us

With questions about this privacy statement or about the handling of your information
please contact:

Eisai Inc.
Privacy Inquiry
100 Tice Blvd.
Woodcliff Lake, NJ 07677


The Pfizer Privacy Officer


Pfizer Inc.
Privacy Officer
235 E. 42 Street
Mail Stop 235/26/6
New York, NY 10017


Pfizer Inc. is a TRUSTe licensee. Contact Watchdog dispute resolution if a privacy issue is not properly addressed by us.

We use personal information you provide to fulfill your request for information, products, or services as per your consent.

We may seek your general consent to provide additional information, products, or services. We give you notice of how your information will be used at the point of collection.

We may personalize our Web sites to provide you with a customized interactive experience, and we may target our marketing and healthcare messaging on those sites based on information we have about you.

We do not sell, rent, or share your personal information with outside third parties. In order to provide services, we may provide information to other companies who work on our behalf. When we do so, we use our best efforts to assure that they agree in writing to abide by Eisai and Pfizer privacy policies.

Additional Information from Eisai Inc.

Additional Information from Pfizer Inc.

Your Rights and Choices

You can unsubscribe from communications you no longer wish to receive. We provide unsubscribe (opt-out) instructions in our communications.

You can also contact the Pfizer Privacy Officer or the postal addresses above if you want to update your personal information or change your marketing preferences.

Additional Information from Eisai Inc.

Additional Information from Pfizer Inc.

Important Information

We do not knowingly collect personally identifiable information from any person under the age of 13 without parental consent.

We have put in place appropriate physical, electronic, and managerial procedures to safeguard and prevent unauthorized access, maintain data security, and correctly use the information we collect online.

Privacy Statement

Eisai and/or Pfizer understands your personal and health information is private. The information you provide will only be used by Eisai and/or Pfizer and parties acting on its behalf. You will only be sent the materials you requested and other helpful information and updates on ARICEPT (donepezil HCl) and/or Alzheimer's as well as related treatments, products, offers, and services.

Eisai Inc. and Pfizer Inc. respect your right to have personal and medical information kept confidential. Due to the personal nature of the materials and Eisai/Pfizer's respect for the privacy of personal medical information, we can only send the materials directly to you.



ARICEPT® (donepezil HCl) is a prescription medicine to treat mild, moderate, and severe Alzheimer's disease.


Before starting on ARICEPT 23 mg/day, patients should be on ARICEPT 10 mg/day for at least 3 months. The starting dose of ARICEPT is 5 mg/day and can be increased to 10 mg/day after 4‑6 weeks. Please take ARICEPT as prescribed by the doctor.


  • ARICEPT (donepezil HCl) is not for everyone, including people who are allergic to any ingredients in ARICEPT or to medicines that contain piperidines.

  • Tell the doctor that the patient takes ARICEPT before they have any procedure that may require anesthesia, including dental and medical procedures or surgery.

  • ARICEPT may cause slow heartbeat and fainting. This happens more often in people with heart problems. Call the doctor right away if the patient faints while taking ARICEPT. People may also have seizures while taking ARICEPT. They may also have difficulty passing urine. Lung problems, including asthma, may worsen with the use of ARICEPT.

  • In a study, more side effects were seen with ARICEPT 23 mg than with ARICEPT 10 mg. Many more people taking ARICEPT 23 mg experienced nausea and vomiting than those taking ARICEPT 10 mg. These side effects may get better after the patient takes ARICEPT for a while.

  • People at risk for stomach ulcers or who take certain other medicines, such as aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs), should tell their doctor because serious stomach problems, such as bleeding, may get worse.

  • Other side effects that were seen more often with ARICEPT 23 mg were stomach ulcers, gastrointestinal bleeding, and weight loss. People of lower weight (less than 121 lbs) may have increased nausea, vomiting, and weight loss when taking ARICEPT 23 mg.

  • Other side effects of ARICEPT may include diarrhea, difficulty sleeping, vomiting, or muscle cramps. Some people may feel tired or may have loss of appetite.

  • Tell the doctor if your loved one takes nonprescription or prescription medicines, including those used to treat Alzheimer's or Parkinson's disease; anticholinergic medicines, such as allergy or cold medicine; medicines to treat bladder or bowel spasms; or certain asthma medicines.