Propanidid, an ultra-short-acting, non-barbiturate anaesthetic, was used in 200 patients undergoing a variety of minor surgical procedures and operations. The patients ranged in age from 6 to 85 years. The optimal dosage was 6 mg/kg in women, 7 mg/kg in men, and 7–8 mg/kg in children. The dosage must be greatly reduced in older patients. It was found that, used alone, propanidid provided adequate anaesthesia for the majority of the patients. In 33 cases a second dose of propanidid was required and in 10 patients supplementary nitrous oxide and oxygen had to be administered. The side effects encountered are detailed and the usefulness of the drug in this field is discussed.