There will be no "hangover" effects from the nitrous oxide, and you will be able to drive yourself home safely following the treatment. However, because this is an oxygen-deprived activity, there will be less stimulation for your brain and body, so you should expect to feel somewhat drained for at least part of the day. Laughing gas is used as a recreational drug for its psychotropic effects. It increases confidence, energy, euphoria, and arousal. Lying down after inhaling nitrous oxide may cause one to sleep for several hours. It can also cause dizziness or nausea in some people. Because laughing gas affects everyone differently, it's hard to say what effect any particular dose might have on an individual user. But generally, the higher the dose, the more intense the effects will be. A high dose of laughing gas is often called a "popgun." One cannot drink too much alcohol and use laughing gas at the same time because they both increase blood pressure and heart rate. The best way to avoid any potential problems when using these substances together is to keep doses low and refrain from drinking anything other than water or nonalcoholic beverages while under the influence of laughing gas.