Changes

'''Dissociative Anaesthetics''' interrupt signals from conciousness centers rather then a generalised center depression. The patients eyes remain open with a slow nystagmus, and hypertonus and spontaneous movements may occur. Examples include phencyclidine, ketamine and tiletamine.

'''Dissociative Anaesthetics''' interrupt signals from conciousness centers rather then a generalised center depression. The patients eyes remain open with a slow nystagmus, and hypertonus and spontaneous movements may occur. Examples include phencyclidine, ketamine and tiletamine.

'''Ketamine''' is an NMDA antagonist. It is given by constant rate infusion or as a bolus for intra-operative analgesia. Both visceral and somatic analgesia is provided, and the drug inhibits central sensitisation and therefore reduces long-term pain. Ketamine also has anaesthetic properties and is used to provide chemical restraint.

'''Ketamine''' is an NMDA antagonist. It is given by constant rate infusion or as a bolus for intra-operative analgesia. Both visceral and somatic analgesia is provided, and the drug inhibits central sensitisation and therefore reduces long-term pain. Ketamine also has anaesthetic properties and is used to provide chemical restraint.

===Tiletamine===

===Tiletamine===

'''Tiletamine''' is available in combination with the [[Benzodiazepines|benzodiazepine]], zolamzepam as a 1:1 combination in powder form which can be made into a highly concentrated solution used for darting wild animals.

'''Tiletamine''' is available in combination with the [[Benzodiazepines|benzodiazepine]], zolazepam as a 1:1 combination in powder form which can be made into a highly concentrated solution used for darting wild animals.

===Phencyclidine===

===Phencyclidine===