Cerebral vasculitis and hemorrhage associated with phenylpropanolamine

Area of Science:

• Neurology
• Toxicology

Background:

• Phenylpropanolamine (PPA) is a sympathomimetic amine found in various over-the-counter medications, including some oral diet aids.
• Intracranial hemorrhage (ICH) is a life-threatening condition with diverse etiologies.

Observation:

• A 20-year-old woman presented with symptoms of intracerebral hemorrhage (ICH).
• Angiographic imaging revealed evidence of cerebral vasculitis.
• The patient reported recent use of an oral diet aid containing PPA.
• Urine analysis confirmed the presence of PPA via gas chromatography.

Findings:

• The patient's presentation of ICH and cerebral vasculitis was temporally associated with PPA use.
• This case suggests a potential link between PPA consumption and cerebrovascular events.

Implications:

• Phenylpropanolamine should be considered in the differential diagnosis for patients presenting with ICH, regardless of adherence to recommended dosage guidelines.
• This finding underscores the importance of a thorough medication history in evaluating patients with acute neurological events.
• Further research may be warranted to elucidate the precise mechanisms by which PPA may contribute to cerebrovascular complications.