If you need to speak to a live customer service representative in Merck customer service you need to dial 1-800-444-2080. To speak with a live agent, you need to press 4 and stay on the line (typical waiting time is about 1-5 minutes).

Alternatively you can use the following other options available in the customer service phone menu:

• If you are a physician, healthcare provider or calling from a healthcare facility press 1.
• If you are a patient, caregiver or consumer press 2.
• If you are an employee press 3.
• For all other calls press 4.

Merck Customer Service Hours

Live customer service representatives from Merck are available from 8am to 7pm EST Monday-Friday, Saturday-Sunday closed.

Merck Customer Service Phones

• Merck customer service phone number is 1-800-444-2080. Live customer service representatives from Merck are available from 8am to 7pm EST Monday-Friday, Saturday-Sunday closed.
• If you have a coupon or voucher for a Merck product and need assistance with activation or processing you need to dial 1-877-264-2454.
• To reach a Merck employee you need to dial 1-908-740-4000.
• For Companion Animal (dogs, cats) you need to dial 1-800-224-5318.
• For Livestock, Poultry & Aquaculture (cattle, swine, dairy, poultry & fish) you need to dial 1-800-211-3573.
• For Equine (horses) you need to dial 1-866-349-3497.

Merck Social Networks Customer Service

• Merck customer service could be contacted via Merck Facebook page. Typically Merck customer service representative replies within an hour.
• You can also reach Merck support via Merck Twitter page
• You can view latest Merck photos on Merck Instagram page

Merck Mailing Addresses

Corporate Headquarters:
2000 Galloping Hill Road
Kenilworth, NJ 07033 U.S.A.

Merck Live Chat Support

Merck does not provide support via chat. The best way to contact Merck is to dial 1-800-444-2080.

Merck support e-mail

Merck doesn’t offer live support via e-mail.

Merck Help Center

You can get more information about Merck on the Merck Contact page.

Merck Opening Hours

Monday 8am to 7pm EST
Tuesday 8am to 7pm EST
Wednesday 8am to 7pm EST
Thursday 8am to 7pm EST
Friday 8am to 7pm EST
Saturday closed
Sunday closed

Merck Headquarters

View Merck headquarters location on a map.

Reach Real Person in Merck by Phone, Live Chat, Social Network

Make sure that you tried multiple options when reaching customer service. If live customer service agent is not available by phone, try live chat as a shortcut. Frequently direct message via Merck Facebook account or Merck Twitter account may get you a customer representative quicker and sometimes even 24/7, so try it too. If you want to file a complaint or submit a positive feedback you may leave your comment or complaint under Instagram or Youtube post and in many cases the business will respond to it. For your convenience all of these customer service contact options for Merck are provided above.

What to do if Merck Contact Number Is Not Working?

It is typical that customer service menu options change with time. Customer support options and even contact numbers might be removed and added. If you have problems with getting a real person in Merck customer service with instructions above please leave the comment in the comments section below and we will improve this guide. We are constantly monitoring the customer service contact numbers, e-mail and chats to make sure the instructions on How to Talk to a Live Person in Merck Customer Service are the most accurate.

If you successfully reached a live customer service agent in Merck please leave your instructions in the comments section below so everyone can use it.