I was wondering if in your experience 5htp needed to also be taken with a decarboxylase inhibitor? Have you ever heard of people having heart problems from taking 5htp in your experience in medicine? I am a chronically depressed person and have been very impressed personally from 5htp's effects but have been cautious to pursue further due to this concern of free serotonin causing cardiac fibrosis problems due to production of free serotonin in the body.