Patent · US Expired

Dromostanolone propionate implant pellet useful for producing weight gains in animals and suppressing estrus in female animals

US3991750A · kind A · utility

62Cited by
6References
38Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 28, 1975
Grant dateNov 16, 1976
Priority date
Expiry dateApr 28, 1995

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61K31/565
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Dromostanolone propionate has been found to result in a surprisingly large increase in weight in animals when administered as a pellet implant. In female animals, e.g. heifers, estrus is also suppressed. A particularly effective implant pellet exhibits a substantially constant rate of drug delivery over a first time period and an abrupt termination of drug delivery at the end of said time period, thus eliminating the need to surgically remove the implanted pellet to stop administration of the drug to the animal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.