IMPORTANT SAFETY INFORMATION:
SENTINEL SPECTRUM® Chews (milbemycin oxime/lufenuron/praziquantel). Dogs should be tested for heartworm prior
to use. Mild hypersensitivity reactions have been noted in some dogs carrying a high number of circulating microfilariae.
Treatment with fewer than 6 monthly doses after the last exposure to mosquitoes may not provide complete heartworm
prevention.
*
SENTINEL SPECTRUM Chews protects against heartworm disease, 4 types of intestinal parasites, and prevents flea eggs from hatching.
†
A. caninum.
‡
Prevents flea eggs from hatching.
Copyright © 2025 Merck & Co., Inc., Rahway, NJ, USA and its affiliates. All rights reserved. US-SEN-230100003 1037451
To learn more, scan the QR code or contact
your Merck Animal Health representative.
Empower your clients and their pets to lead the lives they want, without fear
of heartworm disease, intestinal parasites, and flea infestations.
Prescribe SENTINEL SPECTRUM
®
Chews
(milbemycin oxime/lufenuron/praziquantel)—
comprehensive coverage against unseen parasites.
*
Heartworms Hookworms† Roundworms Whipworms Tapeworms Flea eggs
‡
A SPECTRUM
OF PROTECTION
AGAINST UNSEEN
*
PARASITES
The risk information provided here is not comprehensive. The FDA-approved product labeling can be found at merck-animal-health-usa.com.
