Isoflurane, often referred to by its trade name Forane, was introduced to the realm of anesthesiology in the 1970s. Another of the halogenated anesthetics, isoflurane is a colorless, volatile, and nonflammable liquid. Due to the fact that it can cause a stoppage of respiration, isoflurane is used with other intravenous anesthetics to produce balanced anesthesia. Patients to whom isoflurane has been administered awaken faster than those whose unconsciousness was induced by enflurane or halothane.