title: Propranolol in yawning prophylaxis: a case report.
abstract: OBJECTIVE
  Yawning is a frequent behavior with circadian effects. Sometimes, its frequency is very high and it is disturbing. However, there is no evidence-based treatment for yawning.
  
  
  METHODS
  This is a case report of a man with severe yawning from about 2 years ago.
  
  
  RESULTS
  Yawning reduced after taking propranolol.
  
  
  CONCLUSIONS
  Current evidence suggests that propranolol may decrease yawning through its thermoregulation effect. It is worthwhile conducting controlled clinical trials to study whether propranolol is an effective treatment for yawning.
authors: Research Center for Psychiatry and Behavioral Sciences, Shiraz University of Medical Sciences, Shiraz, Iran. ghanizad@sina.tums.ac.ir
authors: Ahmad
authors: A
authors: Ghanizadeh
mesh_terms: D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D016896:Treatment Outcome; D015000:Yawning / Q000187:drug effects*
chemical_list: D011433:Propranolol