Delayed reactivation of haloperidol induced photosensitive dermatitis by methotrexate.
case_report · Level V
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- Record sourced from PubMed, PMID 11807213.
- Also identified by PMC identifier 1742246.
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Abstract
A man whose psoriasis was well controlled on methotrexate treatment developed pellagra-like photosensitive dermatitis when he started taking haloperidol. Reactivation of his dermatitis was observed with methotrexate as a recall photosensitivity phenomenon. This false photosensitivity reaction of methotrexate is an important but rarely encountered adverse effect. A possible interaction between methotrexate and haloperidol is emphasised.
Medical subject headings
- Antipsychotic Agents
- Dermatitis, Photoallergic
- Haloperidol
- Hand Dermatoses
- Immunosuppressive Agents
- Methotrexate