Brief Answer: This appers due to incomplete sleep & not drug Detailed Answer: Hello and welcome to HCM! I have read your question carefully and from my clinical experince i can tell you that the yawning, etc., is most likely due to your incomplete sleep at night ( you got up at 3 am), and not due to Venlafaxine. You can correlate it easily that a drug which did I not help you enough in sleep, how can be involved in giving yawning? moreover, Venlafaxine dosent usually doesnot cause sedation and is given in day time, I use it almost everyday in my clicnic. If you have any other reason to blame vanlafaxine for all this (apart from what you mentioned ), then it needs to be looked into. The lethargy, reduced sleep and sleepiness in daytime are due to anxeity and incomplete sleep of night. Your current dosage of Venlafaxine is also very low to give proper therapeutic effect. I would recommend that you wait for few days, may add some thing to have sleep- zolpidem, etc. And then, after a week- meet your doctor, and increase the dosage of Venlafaxine. If at all these side effects are related to drug, they will wean off in some time. Hope the reply is useful please feel free to ask more questions for clarifictaion Dr. Manisha Gopal MD psychiatry

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