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Drug-specific clinical pattern in fixed drug eruptions.
1Department of Dermatology and Venereology, Medical College Hospital, Alleppey, South India.
International Journal of Dermatology
|December 1, 1991
Summary
Fixed drug eruption (FDE) patterns vary by causative agent. Identifying drug-specific clinical presentations aids in diagnosing FDE, especially when drug history is unclear.
Area of Science:
- Dermatology
- Pharmacology
Background:
- Fixed drug eruption (FDE) is a cutaneous reaction to medications.
- Understanding drug-specific FDE patterns can aid diagnosis.
Purpose of the Study:
- To investigate drug-specific clinical patterns in fixed drug eruption.
- To determine if lesion distribution can help identify causative agents.
Main Methods:
- Studied 113 patients with fixed drug eruption.
- Identified causative drugs through provocation tests.
- Analyzed clinical presentation and lesion distribution for each drug.
Main Results:
- Trimethoprim-sulfamethoxazole (36.3%) was the most common cause.
- Sulfas predominantly caused lesions on lips and trunk/limbs.
- Tetracycline uniquely affected the glans penis; pyrazolones affected lips/mucosae.
- Dipyrine, aspirin, and acetaminophen caused trunk/limb lesions.
- Levamizole and thiacetazone were associated with constitutional symptoms and extensive lesions.
Conclusions:
- The clinical pattern and lesion distribution of FDE are drug-dependent.
- Analyzing FDE morphology can guide the identification of the responsible medication.