One of the underlying differences between Anavar and other anabolic steroids is that most of this steroid is metabolized by the kidneys. What it means is that it is likely to put less strain on your liver. Theoretically speaking, this should make it possible to have alcohol when taking Anavar. However, there's another angle to this story!
Alcohol bears a negative impact on your cortisol levels, making it difficult for your body to burn fat when taking Anavar. Not just this, Cortisol produces a catabolic effect in your body, thereby resulting in the loss of muscle mass.
Thus, in order to get the best results from your Anavar cycle, you must avoid having alcohol.