Estimated Shipping Schedule

Orders placed by 10am CST are processed same day. 

All orders are shipped in 1-2 business days.

Temperature sensitive refrigerated products are shipped Monday to Thursday only.

Standard Delivery Schedule

Delivery Day

Order DayOrder placed by 10 a.m (cst)Order placed after 10 a.m (cst)
MondayDelivered on TuesdayDelivered on Wednesday
TuesdayDelivered on WednesdayDelivered on Thursday
WednesdayDelivered on ThursdayDelivered on Monday the following week
ThursdayDelivered on FridayDelivered on Tuesday the following week
FridayDelivered on Tuesday the following weekDelivered on Wednesday

You can track your shipment delivery using the My Account- Order History section. 

This schedule does not include retailer and wholesaler accounts. Merck Animal Health reserves the right to adjust shipping times.

Merck Holiday calendar

During the following holidays, no vaccine shipments/deliveries will take place:

  • New Year’s Day
  • Independence Day
  • Day after Thanksgiving
  • New Year’s Eve
  • President’s Day
  • Labor Day
  • Christmas Eve
  • Juneteenth
  • Memorial Day
  • Thanksgiving Day
  • Christmas Day
  • Martin Luther King Jr. Day

No shipments December 22, 2023 thru January 1, 2024. 

If a holiday falls on a Saturday or Sunday, Merck Animal Health observes it on Monday.

Due to holiday shipping volumes, deliveries may be delayed beyond our control.

Have Questions?

Contact Customer Care Monday through Friday 8 am to 5 pm CST at 800-554-5420.