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photoallergic drug reaction
Epidemiology:
- less common than phototoxic drug reactions
- occurs in patients with prior sensitization to the offending drug
Pathology:
- type IV hypersensitivity reaction
Clinical manifestations:
- typically presents > 24 hours after exposure
- presents as eczematous dermatitis , less commonly as exaggerated sunburn.
General
drug-induced photosensitivity
References
- Monteiro AF, Rato M, Martins C.
Drug-induced photosensitivity: photoallergic and phototoxic reactions.
Clin Dermatol. 2016;34:571-81.
PMID: 27638435