"i have used tramadol for over 5 years. i am on a 200mg slow release tablet of which i take 3-5 a day. they say that it decreases the heart rate but it seems to me that last night when i checked my heart was doing 190/min....so that blows that theory out of the water. i can tell that it does make you restless and at times reckless and also increase your anger responses. hope this helps."