For US Healthcare Professionals
Sign In
User name    (Forgotten?)

Password     (Forgotten?)


 Remember me

You can use your MerckMedicus user name and password.

Need to Register?
CANCIDAS® (caspofungin acetate)
EMEND® (aprepitant)
EMEND® (fosaprepitant dimeglumine) for Injection
INVANZ® (ertapenem sodium)
ISENTRESS® (raltegravir) tablets
JANUMET® (sitagliptin/metformin HCl) tablets
(Please read the Boxed Warning about lactic acidosis in the Prescribing Information.)
JANUVIA® (sitagliptin) tablets
MAXALT® (rizatriptan benzoate) Tablets
MAXALT-MLT® (rizatriptan benzoate) Orally Disintegrating Tablets
PROPECIA® (finasteride)
SINGULAIR® (montelukast sodium)
ZOLINZA® (vorinostat) Capsules

Merck/Schering-Plough Pharmaceuticals

VYTORIN® (ezetimibe/simvastatin) Tablets
ZETIA® (ezetimibe) Tablets

This is not a complete list of Merck products. For a full listing of Merck products, please visit Prescribing Information for all Merck Products.

Contact Us

Ask a Product-Related Question or Report an Adverse Event
Let us assist you with information and services related to Merck and its products.
Get Started

The Merck National Service Center will be pleased to assist you Monday–Friday from 8:00 AM–7:00 PM ET. Adverse events and product-related emergencies will be handled at any time.

Get site technical support, or call 1-800-489-5119, for site technical issues.

All product names listed on this site are registered trademarks owned by or licensed to a subsidiary of Merck & Co., Inc.
MerckProductServices, MerckServices, MerckSource, Merck OnCall, MerckMedicus, and MerckEngage are trademarks or registered trademarks of Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.

20953312(21)-05/10-EBS-PHY