Can you overduse cattle penicillin

Answer 1

Yes, it is rare but it can happen. An overdose typically occurs when an owner decides to give the horse penicillin without an equine veterinarians approval and does not follow the instructions on the bottle exactly.

Answer 2

Yes indeed. That's why you really got to be careful when you read the label. A tiny little over dose (like a cc or two) isn't going to hurt, but if you really over-do it, like inject at least 10 more cc's than you should've, you could end up causing more problems than fixing them.