Fina is used for feedlot heifers because of it's short half-life. Steroids must be cleared from the slaughtered beef before the FDA will approve distribution. The lesson for bodybuilders is that it works for weight gain, and that it is fast acting, and clears the system rapidly...that's why it is injected ED or EOD.
Where I live, the farmers slaughter their own beef and poultry for family consumption without worring about this....some damn big farm boys around here.