Sustained release pyriproxifen compositions for parasite control
AssigneeVirbac
InventorThomas A. Miller
Life of this patent
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Abstract
The invention comprises a method of controlling fleas which includes continuously administering to the haircoat of a homeothermic animal an ovicidally effective amount of 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine (pyriproxifen) from a sustained release matrix at a rate of 0.1 mcg/kg/day to 100 mcg/kg/day. The method may also include the use of additional ingredients such as insecticides, plasticizers, lubricants and antioxidants in a sustained release matrix.
Claims30
A method of controlling fleas which comprises continuously administering to the haircoat of a homeothermic animal an ovicidally effective amount of 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine (pyriproxifen) from a sustained release matrix at an average rate of 0.01 mcg/kg/day to 5 mcg/kg/day.
A method for preventing the reproduction of fleas on an animal having a haircoat comprising attaching a controlled release device which releases an ovicidally effective amount of pyriproxifen in the range of 0.01 mcg/kg/day to 5 mcg/kg/day by diffusion from the surface of the controlled release device into the natural oils on the haircoat of the animal whereby an ovicidally effective amount of pyriproxifen is available for immediate contact with fleas in the animals haircoat.
A method of controlling fleas on an animal which comprises continuously administering to the haircoat an ovicidally effective amount of 2-(1-methyl-2-(4-phenoxyphenoxy)ethoxy)pyridine (pyriproxifen) from a sustained release matrix material formulated to release pyriproxifen in the average daily amount of 0.01 mcg/kg/day to about 5 mcg/kg/day of pyriproxifen for over 150 days.
Dependencies are inferred from the claim text.