I’m honestly not sure what it’s called but they said it is a pain and anti inflammatory. He seemed more awake after getting his second dose so maybe he’s sleepy from the pain and the stress. I’m only giving it every other day. I’m amazed the doc hasn’t called back and I’ve even called again. I’m pretty upset about it but just hoping he just needs time for his arm and the doctor doesn’t matter at this point. Thanks for the prayers, it’s truly a miracle so far!