there are no significant interactions between these two medications. for some people effexor can actually cause drowsiness. but for others it can sometimes make it difficult to sleep. if it does not affect you in this way you can take it at night. in general if you take a medication every morning and forget for more than 12 hours it is best to just skip the dose and return to your normal schedule the next morning. you do not want to take extra doses too close together.
i forgot to take my effexor in the morning. can i take it at night along with lunesta?