The quran states it is a confirmation of previous messages and not a new message - I'm not sure about this statement.
As an example, the OT condemns drunkenness but Jews drunk alcohol. The Nt also condemns drunkenness but Jesus turned water into wine.
AFAIK, the Quran condemns drunkenness plus any consumption of alcohol.
Why did God suddenly become a teetotaller c.650CE?!