AITA for expressing my concerns to my partner about what her friend suggested to do?

So my partner smokes weed which i do not have any issues with at all, the issue I'm having is wether I'm the asshole for expressing my concerns when it comes to a new drug her friend suggested they do together. We are in a long distance relationship and her friend who is also her housemate has suggested doing a haluconogenic tea over the weekend. It was the same thing found in peyote but not the same cactus, I can't remember the name at the time of typing this but after a little bit of research into it I'm really not comfortable with the idea of it. Right down to the way it was brought up to me. We were on call together and she asks her friend to tell me something. He proceeds to go on about the process of how he found out about this drug from a cactus that can be made into tea and how he's done it and that they are gonna try it on the weekend. He says how it's perfectly safe as he's researched the affects and things but I had started to get that sort of sinking feeling in my stomach, the kind when your anxiety flairs up sort of way. I just kind of nodded and things, my partner asks me if I'm okay I'm being really quiet. I reply yeah it's something I know nothing about. So after the call ends I then message her about my concerns and how I'm really not comfortable with the idea of it. Listing some of the side affects and things and saying how the manner it was brought up to me hurt and made me feel disrespected as it wasn't her that brought it up. It just felt like this was all just dropped on me and I can understand that she dosent really know much when it comes to the drug and things. Which is why she explained that she got him to tell me. I'm unsure if I'm just being super controlling or I'm overreacting, I'm just really concerned as I don't trust any of it especially when my own partner wouldn't bring it up to me. Am I the asshole for it?