Nitrous Oxide is commonly used for childbirth, dentistry and paediatric anaesthesia. It is safe, has a short half-life (meaning that the effects wear off very quickly) and is a "dissociative" drug - people disconnect with what is going on. For this reason, it is also popular at festivals, house parties and night clubs. The UK has the second highest use of Nitrous Oxide in the world. Click here to see the Global drug survey findings for Nitrous Oxide use.