Sevorane Inhaler is used to provide general anesthesia. It works by causing reversible loss of consciousness. This allows surgical procedures to be carried out without pain and distress.Sevorane Inhaler is given under the supervision of a healthcare professional in a hospital setting only. But, you may report to the doctor before the procedure if you have any known allergy to this medication.Sevorane Inhaler may cause confusion, vomiting, and nausea as its side effects. It may have some major side effects, so it is better to consult your doctor if you feel sick.