Hello @dbrima and welcome to Mayo Clinic Connect. I am so sorry to hear of your daughter's reaction.

I wanted to bring you into an existing discussion on Camzyos, so you will notice I have moved your post here:
- Anyone take new drug Camzyos (mavacamten) for HCM?: https://connect.mayoclinic.org/discussion/camzyos-mavacamten-prescription/

Several members have joined you. What is your cardiologist saying about how your daughter is reacting?