I got some eq from a friend. He got it from a guy that races horses. Problem is the label was scratched off of the 50 ml bottle i got my 10 ml from so i really dont know the mg per ml. he says 250, but I thought for vet/ equine purposes the mg/ml would be no more than 50mg. Info please. I dont want to shoot a half a bottle a week lol. does it come in higher dosages?