This is my first time taking clenbuterol, so I took one of the 40mcg capsules and within an hour my heart rate was around 120bpm. It is almost 24 hours later and it's nearly the same, maybe around 115bpm now. Is this just a waiting game or do I need to seek attention if it lasts any longer? I will not be taking another one. I just don't see how one could do this.
