Propranolol and Psychiatric Side Effects

Introduction to Propranolol Side Effects

The American Psychiatric Association notes that propranolol can cause psychiatric side effects, including mood disturbances, such as depression, in adults, though the mechanism involves effects on memory and psychomotor function rather than obsessive thinking 1
The American Academy of Sleep Medicine reports that sleep disturbances, including agitation during the night, nightmares, and night terrors, occur in 2-18.5% of patients taking propranolol, which may be misinterpreted as obsessive rumination but are distinct phenomena 1

The American Psychiatric Association states that obsessive-compulsive disorder requires specific features, such as recurrent intrusive thoughts, urges, or impulses that the patient attempts to neutralize through compulsions, which are not reported with propranolol use 2
The National Institute of Mental Health indicates that if a patient on propranolol develops what appears to be obsessive behavior, alternative explanations, such as agitation or restlessness from sleep disturbances rather than true obsessions, should be considered 1

The American Heart Association recommends that if behavioral changes emerge on propranolol, the specific symptoms should be assessed to determine whether the behavior meets criteria for obsessions/compulsions versus other psychiatric phenomena 2
The American College of Cardiology suggests that propranolol should be tapered to prevent rebound symptoms, particularly in patients using it regularly 1, 3