This thesis deals with nitrous oxide, its properties, safety advices and physical effects on women in labour, their newborn and medical staff. Following chemical nomenclature its correct name is dinitrogen monoxide, which is also known as laughing gas or sweet air. In small portions it is analgetic and anxiolytic, but in higher dosage it has an anaesthetic effect. The consequences of nitrous oxide used as analgetic in labour on mother, child and expert staff are examined within a literature research. In some countries nitrous oxide is used as analgetic in labour especially in a mixture containing 50 % oxygen. The application spectrum gives a guideline of inhaling the gas in the best way and shows the aspects, which should be paid attention to. Dosage, adverse effects, contraindications, guidelines and pharmaceutical forms are discussed.
Furthermore attention is turned to effects on the mother, her newborn and the female expert staff and their own pregnancies. In the end nitrous oxide is contrasted shortly with epidural anaesthesia.
Finally it is concluded that side effects on mother and child are tolerable, but more research should be done. To make a statement concerning health effects on expert staff, further studies are necessary.