Minoxidil-induced systemic lupus erythematosus.

Area of Science:

• Cardiology
• Rheumatology
• Pharmacology

Background:

• Minoxidil is a potent antihypertensive agent.
• Drug-induced lupus erythematosus (DILE) is a recognized adverse effect of certain medications.

Observation:

• A patient on minoxidil developed pleural and pericardial effusions.
• The patient presented with a positive antinuclear antibody (ANA) titer.

Findings:

• Specific markers for idiopathic systemic lupus erythematosus (SLE) were negative.
• Complement levels were normal.
• Discontinuation of minoxidil led to clinical improvement and decreased ANA titers.

Implications:

• Minoxidil can potentially induce a lupus-like syndrome.
• This case highlights the importance of considering drug-induced causes in patients presenting with lupus-like symptoms.
• Monitoring for autoimmune phenomena is crucial in patients receiving long-term minoxidil therapy.