Return merchandise
How to return Merck expired product
Merck expired product returns are subject to the Standard Terms and Conditions of Sale for Pharmaceutical and Vaccine Products.
If you purchased product through a wholesaler or distributor, please contact your wholesaler directly for assistance with returns, shipment issues, or credit questions.
Before you begin
A Return Authorization (RA) is required before returning any Merck product.
To create a RA, visit the PharmaLink Returns Portal or call 800-257-3527.
Have the following information available before starting your request:
- DEA or HIN number
- National Drug Code (NDC)
- Lot/Batch Number
- Product Description
- Quantity Being Returned
- Return Reason
Important: To avoid processing delays, ensure all product information is complete and accurate when submitting your request.
Create a Return Authorization (RA)
- Go to the PharmaLink Returns Portal.
- Complete all required fields.
- Verify that the NDC and Lot/Batch Number are entered exactly as shown on the product packaging.
- Submit the request and retain your RA number for future reference.
- Print and include your RA documentation with the return shipment.
Ship your return to
Please include your RA documentation with all return shipments to help ensure timely processing.
Return processing
After your return is received and validated, it will be processed according to Merck’s return policies and eligibility requirements.
To avoid delays in processing:
- Obtain a RA before shipping product.
- Submit complete and accurate return information.
- Include all requested supporting documentation.
- Ensure returns are submitted within applicable return eligibility guidelines.
Need assistance?
For questions regarding returns and return status contact the Merck Order Management Center at:
- 8:00 AM – 6:00 PM ET