From a pack of 52 cards, a card is drawn at random. What is the probability of getting a queen?. The general rule is that it takes one hour for your liver to fully break down one drink. That can be helpful in keeping track of your drinking and pacing yourself. However, when you drink more than one drink per hour, the excess alcohol gets stored in your blood and muscle tissue until your liver can handle it. False Readings. Some people with ignition interlock systems installed in their vehicles trigger them without drinking any alcoholic beverages. This is because some products, such as mouthwash and cough syrup, have recognizable alcohol levels. The system will react to such alcoholic content exactly as it would for liquor, beer or wine.