Alcohol can stay in your blood between 6-72 hours If you are a person who is not addicted to alcohol or is trying it for the first time, the time that alcohol remains in the blood is about 5 hours It varies from one person to another depending on the degree of his addiction and the quantity he takes.There are a number of factors that affect how long alcohol remains in the blood, including:
body weight
The amount of alcohol
Health status
Duration of administration
Genetics