Hi, It is not advisable to take aleve after having heart surgery. Aleve is a non-steroidal anti-inflammatory drug commonly used to treat painful conditions such as arthritis, tendinitis, bursitis, gout, or menstrual cramps. It may increase the risk of serious cardiovascular thrombotic events including myocardial infarction and stroke, which can be fatal. Since you already have had a single bypass surgery, you may be at a higher risk of developing thrombotic events as mentioned above. Hence avoid taking aleve. I would suggest you to take an pain reliever like paracetamol which is quite safe. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr. Mohammed Taher Ali