Allergist said she didn't think it was the Camzyos but that it might be--she said there's too little data. Cardiologist said it's unlikely the Camzyos. But it definitely is. Maybe it's interacting with other medications I take that together cause itching, maybe it just causes itching in many of us--that's what I've seen on this and other bulletin boards. But there's no question about the source of the itching: Camzyos. I reported it to the "Nurse Navigator" at MyCamzyos and to the Bristol Myers Squibb people and they acted like they had never heard of this being a side effect. I also take Allegra antihistamine daily now for the itching. We have to play the cards we are dealt. No one is promised tomorrow. Just doing my best.