Viagra causes severe nasal congestion and elevated blood pressure
If you have any allergies or a problem with your heart-
see ya later-
or maybe not
There were some scumbags giving it to greyhounds before they raced
Since the dogs are locked up for a few hours in a cage before the races, by the time the races went off the dogs would be so congested that they couldn't breathe
Needless to say, when post time favorites were running 20 lengths behind the rest of the field the officials put 2+2 together
There are newer similar drugs on the market with less of the nasty side effects