from Neighborhood Cats (please cross-post):
This past week, word has become widespread on the Internet about a product called FeralStat - its manufacturer claims it is a safe, effective oral contraceptive for feral cats that only needs to be placed in the cats' communal food once a week.
According to an interim statement from the highly reputable Alliance for Contraception in Cats &Dogs (ACC&D):
*In numerous studies over three decades, FeralStat's main ingredient (megestrol acetate) has been found to pose serious health risks in cats, including diabetes mellitus, mammary swelling and tumors, uterine disease, pyometra, and skin disorders. Megestrol acetate is not now, nor has it ever been, approved by the FDA for use in cats.
*FeralStat is not yet known to have completed any formal review process or been subjected to acceptable, controlled studies.
* Because it is a food additive, there is no way to control the amount of FeralStat each cat ingests, and there is the risk of ingestion by wildlife and owned pets.
For the full ACC&D interim statement, please see the attached pdf file.
Neighborhood Cats strongly discourages anyone from using this potentially dangerous product for any purpose. For the latest developments in non-surgical sterilization, we recommend relying solely on information gained from the Alliance for Contraception in Cats &Dogs.