Multiple widespread fixed drug eruption caused by rabeprazole.

Area of Science:

• Dermatology
• Pharmacology
• Clinical Medicine

Background:

• Fixed drug eruption (FDE) is a frequent cutaneous adverse drug reaction.
• Analgesics and antibiotics are commonly implicated in FDE.
• Understanding triggers for FDE is crucial for patient management.

Observation:

• A case of multiple, widespread fixed drug eruption is presented.
• The patient developed characteristic skin lesions upon exposure to rabeprazole.
• This presentation is unusual given the typical drug culprits for FDE.

Findings:

• Rabeprazole, a proton pump inhibitor, was identified as the causative agent.
• The eruption pattern was consistent with multiple FDE lesions.
• This case expands the spectrum of drugs known to induce FDE.

Implications:

• Clinicians should consider less common medications, like rabeprazole, when diagnosing FDE.
• Increased awareness of rabeprazole-induced FDE may improve diagnostic accuracy.
• Further investigation into the immunologic mechanisms of FDE caused by proton pump inhibitors is warranted.