5mg I began to have cardiac symptoms, which consisted of mainly palpitations and a racing heart
. I have had palpitations for years, and have seen a cardiologist which cleared me. We did an echo, numerous ECG, blood work, event monitor, holter monitor and nothing was shown.
On the drug, I had very few cardiac symptoms (took for about 3 years), but one of the reasons why I got on the drug was to alleviate these symptoms which I had before and now afterward.