One study presented at the recent ASN 2010 at Denver found that alcohol consumption in moderation was indicative of lesser incidence of post transplant diabetes (NODAT). The investigators argue that the belief of interactions with medications might be false and without evidence. Not only did they show that it was a decreased NODAT risk but also decreased risk of death post transplant. So kind of similar to the general population.
Check out Renal and Urology news's website for a video on the presenter at ASN 2010