I gave my dog drontal plus as perscribed but they did not give me the directions on how to use it, I spotted 2 and 1/2 pills in it thinking i give him halfs each day So i gave him one two days ago and it didnt feel right, as it worked though i had to look it up and found out i give him all the pills in one sitting, so i gave him the rest the next day, have i hurt my puppy? Hes only 3 months and hes a staffordshire bull terrier, French mastiff, black labrador, and boxer