The package of Quikclot I have says nothing about shellfish on it, and I’ve never been warned at work about its use on people with shellfish allergies. I’ll have to look into it.
We’ve used it on gunshot victims who will be needing surgery regardless. Not every case is life or death, but we use it as an opportunity to use it as a training situation. “Hey, lets try the Quikclot” Better than using a mannequin.