Adolescent Polypharmacy and Serotonin Syndrome

Area of Science:

• Pediatric Psychiatry
• Clinical Pharmacology
• Neuroscience

Background:

• Attention-deficit/hyperactivity disorder (ADHD) frequently presents with comorbid psychiatric conditions requiring polypharmacy.
• Children and adolescents with ADHD are often prescribed multiple psychotropic medications, increasing the risk of drug interactions.

Observation:

• A case study of an adolescent female experiencing possible serotonin-related abnormal movements while on stimulants and multiple serotonergic agents is presented.
• Psychostimulants, such as amphetamine salts, can potentiate serotonin through mechanisms including monoamine oxidase inhibition and neurotransmitter release.

Findings:

• Serotonin syndrome can be precipitated by drug interactions that elevate serum levels of psychotropic medications.
• The study highlights the overlooked serotonergic effects of psychostimulants in the context of polypharmacy.

Implications:

• Clinicians must remain vigilant for the characteristic triad of serotonin syndrome: altered mental status, neuromuscular abnormalities, and autonomic hyperactivity.
• Close monitoring of pediatric patients on multiple psychotropic medications is essential to prevent and manage serotonin syndrome.