GENERAL ANAESTHETICS
1. INHALATIONAL
    a. Gas
                Nitrous oxide

    b. Volatile liquids
                Ether
                Halothane
                Enflurane
                Isoflurane
                Desflurane
                Sevoflurane

2. INTRAVENOUS
    a. Fast acting drugs
                Thiopentone sodium
                Methohexitone sodium
                Propofol
                Etomidate

    b. Slower acting drugs
        1. Benzodiazepines
                Diazepam
                Lorazepam
                Midazolam

       2. Dissociative anaesthetic
                Ketamine

       3. Opioid analgesia
                Fentanyl