The information on this site is intended for healthcare professionals in the United States and is not intended for the general public.

I AM A HEALTHCARE PROFESSIONAL I AM NOT A HEALTHCARE PROFESSIONAL
Selected safety information,
including boxed warning on use
in pregnancy.
Merck
COZAAR® (losartan potassium tablets) & HYZAAR® (losartan potassium-hydrochlorothiazide tablets)

Prescribing Information

View the PDF of the Prescribing Information for COZAAR and HYZAAR.

Merck OnCall® On Call For You

Instant access to a LIVE Merck Representative at YOUR convenience – please click here.

During your live electronic product presentation, you can:

  • Request samples and vouchers for select Merck products
  • Obtain the latest product information for select Merck products
  • Have access to relevant clinical articles
  • Request educational materials for your patients
  • Receive assistance with registration for
    Merck eMedical Forums
  • Get answers to questions about diseases relevant to select Merck products

We will be pleased to assist you Monday through Thursday from 8 AM to Midnight ET, Friday from 8 AM to 6 PM ET, and Saturday from 8 AM to 3 PM ET (with the exception of holidays and certain dates around holidays).

Or if you would prefer to use only the telephone, you can speak directly with a Merck Representative by calling 1-877-888-4229.

To speak with a Merck healthcare professional about Merck products or services, please call 1-866-448-7590. The Merck National Service Center will be pleased to assist you Monday through Friday from 8 AM to 7 PM ET.

USE IN PREGNANCY: When used in pregnancy during the second and third trimesters, drugs that act directly on the renin-angiotensin system can cause injury and even death to the developing fetus. When pregnancy is detected, COZAAR and HYZAAR should be discontinued as soon as possible. See WARNINGS: Fetal/Neonatal Morbidity and Mortality.

Home | BP Efficacy | Outcomes | Resources | Patient Profiles | Coverage & Availability | Contact Us | Request More Information | Prescribing Information | Patient Information

Merck Patient Assistance Program

Merck OnCall® is a registered trademark of Merck & Co., Inc.

This site is intended only for health care professionals of the United States, its territories, and Puerto Rico.
COZAAR and HYZAAR are registered trademarks of E.I. du Pont de Nemours and Company, Wilmington, Delaware, USA.
20851323(3)-07/08-COZ
SITE MAPPRIVACY POLICYTERMS OF USECOPYRIGHT © 1995-2008 MERCK & CO., INC.MERCK & CO., INC. (USA)