Veterinary estrogen composition and administration method

Claim 1

A COMPOSITION FOR ADMINISTERING A RELATIVELY WATER-INSOLUBLE ESTROGEN BY FORCE EXTRUSION INJECTION IN SEMI-SOLID STATE THROUGH THE SKIN OF A MEAT-PRODUCING ANIMAL TO PROMOTE MEAT PRODUCTION BY SUCH ANIMAL, CONSISTING OF A PLASTIC COMPOSITION WHICH IS SEMI-SOLID AND SUBSTANTIALLY NON-FLOWING AT HIGH ATMOSPHERIC TEMPERATURES BUT IS EXTRUDABLE THROUGH A HYPODERMIC NEEDLE UNDER HIGH PRESSURE, AND IN WHICH THE RELATIVELY WATER-INSOLUBLE ESTROGEN IS UNIFORMALY DISTRIBUTED THROUGH A NON-TOXIC, WATER-SOLUBLE, SEMI-SOLID CARRIER WHICH HOLDS THE ESTROGEN IN UNIFORM AND STABLE DISTRIBUTION IN THE ABSENCE OF WATER BUT DISSOLVES IN THE PRESENCE OF BODY FLUIDS TO RELEAST THE RELATIVELY WATER-INSOLUBLE ESTROGEN IN SOLID STATE AS A DEPOSIT AT THE SITE OF INJECTION, SAID CARRIER BEING A HOMOGENOUS MIXTURE OF POLYMERIZED POLYETHYLENE GLYCOLS AND A POLYHYDRICALCOHOL PLASTICIZER, AND AT LEAST 30% THEREOF CONSISTING OF POLYMERIZED POLYETHYLENE GLYCOLS HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 400.