Risperidone-induced Gingival Bleeding in a Pediatric Case: A Dose-dependent Side Effect

Area of Science:

• Pharmacology
• Clinical Medicine
• Adverse Drug Reactions

Background:

• Risperidone is an antipsychotic medication with known, though rarely reported, bleeding side effects.
• Gingival bleeding has not been previously documented as a specific adverse effect of risperidone.

Observation:

• A patient developed gingival bleeding upon increasing risperidone dosage to 0.5 mg/day.
• The gingival bleeding resolved after the risperidone dose was reduced to 0.25 mg/day.

Findings:

• The observed gingival bleeding appears to be a dose-dependent side effect of risperidone.
• Potential mechanisms include 5-hydroxytryptamine 2A receptor antagonism.

Implications:

• Clinicians should consider gingival bleeding as a potential, albeit rare, adverse effect of risperidone.
• Awareness of this side effect is crucial for patient monitoring and management.
• Further investigation into the mechanisms of risperidone-induced bleeding may be warranted.