<prompt> All of the following can be used in increased ICT exceptKetamineThiopentoneAcetazolamideMannitol  <response>: A Ketamine Complications of Ketamine: Hypertension, tachycardia Emergence delirium, nightmares, hallucinations less frequent with intramuscular injection, least in elderly and below 15 yrs. Salivation, Increased intracranial pressure; Prolonged recovery. Allergic reactions - Transient erythemaMorbilliform rash Respiratory depression dose dependent injection to be slow. 