These pills work, but not quited how I expected them to. I expected the fake blood to flood out just as the pill popped open, but I had to chew on it 4-5 times extra before anything happend at all. But afterwards it worked fine. The disgusting taste really gives it an extreme realistic blood-puke effect, which was what i needed them for, so I liked them even though it wasn't quite what i expected.
Besides how they work, I found it weird that in some of my packs, there were 3 pills and then others with 4 in them. I don't know if it's an accident or just how they are produced, but I think every pack should have an equal amount.