Merck Order Management Center
800.MERCK.RX (800.637.2579), Monday through Friday, 8:00 AM - 7:00 PM ET.
If calling from Canada, please call the Merck Canada Order Desk at 800.463.7251.
Please fax the Merck Order Management Center at 267.305.0783.
Merck & Co., Inc.
Order Management Center
351 N. Sumneytown Pike
UG-4C24
North Wales, PA 19454
Merck call centers are pleased to assist you from 8:00 AM to 7:00 PM ET, Monday through Friday.
Use our online contact form to submit an inquiry related to a Merck vaccine.
You must be a registered user to utilize this feature.
Merck Vaccine Customer Center
877.VAX.MERCK (877.829.6372)
If calling from Canada, please call the Merck Canada Order Desk at 800.463.7251.
call 800.235.1430.
Use our Callback service if you would like to speak to a dedicated Merck representative. This service is available between 8:00 AM and 6:30 PM ET, Monday through Friday.
You must be a registered user to utilize this feature.
Please fax the Merck Vaccine Customer Center at 215.631.5224.
Merck & Co., Inc.
Vaccine Customer Center
351 N. Sumneytown Pike
UG2AB-20
North Wales, PA 19454
To report an adverse experience directly to Merck: 800.NSC.MERCK (800.672.6372).
To report to the National Vaccine Adverse Event Reporting System (VAERS):
800.822.7967 / http://www.vaers.hhs.gov/