My understanding is that any animal that has been tranquilised using Immobilon is not able to go into the food chain in this country. However I also believe that this is not the case in the rest of Europe where there is a 30 day withdrawal period on the drug. Does anybody know whether this is true? In addition has anybody eaten venison that has been tranquilised using Immobilon and what, if any, the effects might be? Is this merely a case of the British being overly cautious?