I just started venlafaxine two days ago. And I have felt drowsy the last two days. But I also felt drowsy the day before I started taking the new drug. So I am wondering... is this a side effect or am I just not sleeping well or maybe getting sick? In other words, is it possible that the drowsiness is related to the drug this soon, or no? Would taking it earlier help any? I have been taking it around 11pm, right before bed.