This'll be an interesting story to follow. As the baseball world focuses on the latest allegations to surface concerning performance enhancing drugs (PEDs) and NY Yankee Alex Rodriguez, VJ Singh apparently has come out and told the public that he has used some product made from deer antler velvet - Not sure why, but I imagine the extract of deer antler velvet ( a fuzzy growth that covers the antlers of a deer) has some substance that theoretically helps speed injury recovery. And that substance is banned for use by Tour players.
Apparently admitting to the use of a banned substance is tantamount to a positive drug test (even though I don't believe drug testing is a protocol on the PGA Tour) and thus subject to punishment by the Commissioner.
Drug use in golf - No sport is untouched with the money to be made these days..