I am a new user of Viibryd and getting ready to step up to 40 mg in 2 days. I have taken other antidepressants for several years with generally good results other than eventually they become less effective. So far my side effects have been manageable. But for the last two days I've been so sleepy during the day that I can barely function. Most people seem to think that it should be taken in the morning. Has drowsiness decreased for anyone else after the initial adjustment period? Or have you been successful taking it at bedtime?