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Sentinel® Spectrum Chews® - white logo

A Spectrum Of Protection
Against Unseen Threats

Veterinary Professionals

Bring a spectrum of protection into your practice.

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Pet Parents

Protect your dog with comprehensive coverage of Sentinel brand products.

To report an adverse reaction, product-related problem or human exposure, please call Merck Animal Health Technical Services.
Companion Animal Technical Services: 1-800-224-5318.
For information about Merck Animal Health products, call 1-800-521-5767.

For technical assistance or to report a suspected adverse drug reaction, contact Merck Animal Health at 1-800-224-5318.

This site is intended for veterinary professionals.
Pet parents should read more about Sentinel here.

Important Safety Information

SENTINEL SPECTRUM CHEWS: 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. For complete product information refer to the product insert.

SENTINEL FLAVOR TABS: 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. For complete product information refer to the product insert.

References:

  1. SENTINEL® SPECTRUM® CHEWS [prescribing information]. Madison, NJ: Merck Animal Health; 2020.
  2. SENTINEL® FLAVOR TABS® [prescribing information]. Madison, NJ: Merck Animal Health; 2020.