I doubt very much that this garbage is actually Ke

I doubt very much that this garbage is actually Kevetrin. Chinese-manufactured pharmaceuticals have huge quality-control issues -- I can't imagine injecting something that they manufactured, that was bought online like this.

I once had a sinus infection, and had a prescription for the antibiotic I usually take for bad infections. It was utterly worthless. Went back to the doctor, got a refill. Within a few hours of the new prescription I started getting much better. Refill was manufactured in India. The first prescription -- China. I doubt that there was anything but filler in that first batch of purported "antibiotic."