I have been taking venlafaxine XR, 150mg for several months now. I have almost constant fatigue and / or sleepiness throughout the day. This problem is interferring with my quality of life. I have tallked to my family dr.& psychiatrist several times about this problem. They seem to dismiss it! All blood tests are within normal limits. I do have sleep apnea and use the cpap mask every night. However, this fatigue seems to have increased within the last few months. Can this drug be the cause? I also take buPROPion, XL,300 mg, both taken in the AM. Thanks for your help!