Hi, I suffer from SVT and am very anxious about any heart related symptoms that occur which can trigger me in to svt so it's like a vicious circle.

I looked into anti stress tablets which can help anxiety, one I found was boots stress relief which contains rhodiola rosea. I am currently taking 120mg of verapamil a day. does anyone know anything about serotonin syndrome and if these 2 drugs could cause this?

Thanks