Inventors:
Rey T. Chern - Harteyville PA
Jeffrey N. Clark - Middletown NJ
Marlene D. Drag - Wellsville MO
Joel R. Zingerman - Doylestown PA
Assignee:
Merck & Co., Inc. - Rahway NJ
International Classification:
A61K 31415
Abstract:
Sulfurpentafluorophenylpyrazoles of formula I are highly potent against flea and tick infestations in animals. The compounds may be formulated to provide products with long duration of action and low potential for inducing vomition and other adverse reactions in treated animals.