Each half a pint of ordinary beer has the same amount of alcohol as a pub measure of spirit or a small glass of wine, this amount is referred to as one unit of alcohol. All alcohol has to be burned up by the liver before eventually leaving the body and each unit of alcohol takes up to one hour to do this. So every pint of beer drunk will take about two hours for the liver to process and the body to be cleared of alcohol. I only drink at weekends Many people believe the only person who is an alcoholic is one who drinks great quantities every day, or is drunk all the time. But many alcoholics can go a long time without taking a single drink.
Some alcoholics stay dry for weeks even months or years.
It is not when or how often you drink that determines whether you have a drinking problem. Rather it is whether you can control your drinking when you do drink. People may drink only at weekends, but if they often get drunk at weekends, they certainly have a drink problem. You must be absolutely honest, and there can be no exceptions, two units of alcohol on any occasion, but no more than two drinks a day. If you can do this for a month, you still have control.