1 litre of vodka daily -> cold turkey == risk of convulsions. You need chemical assistance, typically rather a lot of valium over about 5 days, under skilled s

1 litre of vodka daily -> cold turkey == risk of convulsions. You need chemical assistance, typically rather a lot of valium over about 5 days, under skilled supervision (so, in a clinic; or at home with a companion, and with daily visits from a clinician). The valium prescription will require assessment by a psychiatrist. The clinician will adjust the valium dose regularly based on his observations. That's not really cold turkey, because most of the withdrawal symptoms are suppressed. But you have to stop dead, a good 12 hours before you start on the valium. If you're at home, the clinician will check you for alcohol on your breath, check blood-pressure etc. Mixing alcohol with large doses of valium is a total no-no, and the clinician will cease treatment immediately.