Sub dissociative dose of ketamine with haloperidol versus fentanyl on pain reduction in patients with acute pain in the emergency department; a randomized clinical trial.

Background: Ketamine is known to be an effective factor in reducing pain without significant side effects.

Objective: One of the limited side effects of Ketamine is agitation. Due to the reduction of this symptom with Haloperidol, we decided to design a randomized clinical trial to compare the analgesic effect of Ketamine with Haloperidol and Fentanyl in reducing acute pain and its complications.