Sounds like that new pain killer for morphine tolerant people with chronic pain. Actiq is the drug and yes if you are not tolerant to morphine it can kill with one dose. BE careful with stuff you don't know what it is. I would like to try the UK cheese weed, never heard of it. Hell people don't think it's funny when I smoke one with them and then ask if I put too much PCP in it ? LOL. If I don't grow it or can identify it I don't want anything to do with it.