Well, I understand what you are saying, certainly a horse that fades during the last eighth, but can now run out his race - yes, that\'s good.
But clenbuterol certainly doesn\'t make a horse physically able to run more quickly.
I think you need to understand the drug is helpful, but not magic. Horses bedded in stalls, fed upright, living in such a dusty environment (remember they are designed to be out in a big grass field with their heads down, draining and grazing, all day long) - horses living in stabled environments tend to have chronic obstructive pulmonary disease - their airways get inflammed due to breathing in all that junk all the time.
Picture the horses at Churchill (next to an airport), at Arlington (right next to a major highway in the suburbs) - no wonder these horses can\'t breath, due to car and airplane exhaust alone.
Clenbuterol helps relax the airways (it\'s a bronchodilator), so the horse can breath more freely. It\'s a beta-2 agonist, so it relaxes smooth muscle (such as in airways, it may cause some venodilation) In horses it also seems to inhibt the release of some inflammatory mediators common in airway disease.
I don\'t know WV clenbuterol time offhand - you can do the search yourself by googling West Virginia Horse Racing Regulations and reading through them.
In KY it\'s 72 hours. After dosing by mouth, the drug is maximally absorbed after about 2 hours, and it\'s effect lasts for 6-8 hours.
My drug books says: After multiple oral doses, the drug\'s volume of distribution is approximately 1.6 l/kg and clearance was 94 ml/kg/hr. Urinary concentrations of clenbuterol are approximately 100X those found in the plasma and can persist at quantifiable levels for 288 hours in urine after the last oral dose
So obviously not a drug you can overuse too close to race time and get away with it.
I\'m wondering why you are picking clenbuterol as your drug of suspicion? If I see sudden big figures, I wouldn\'t think of this at all.
