"A US Food and Drug Administration (FDA) advisory panel has backed a new biologic for psoriasis, though the panelists recommended strong warnings about the potential for suicide and self-injurious behavior (SIB) with the drug.
In the event of methoxsalen overdosage, induce emesis and keep the patient in a darkened room for at least 24 hours. Emesis is most beneficial within the first 2 to 3 hours after ingestion of methoxsalen, since maximum blood levels are reached by this time.
- Patients exhibiting idiosyncratic reactions to psoralen compounds.
- Patients possessing a specific history of light sensitive disease states should not initiate methoxsalen therapy except under special circumstances. Diseases associated with photosensitivity include lupus erythematosus, porphyria cutanea tarda, erythropoietic protoporphyria, variegate porphyria, xeroderma pigmentosum, and albinism.
- Patients with melanoma or with a history of melanoma.
- Patients with invasive squamous cell carcinomas.
- Patients with aphakia, because of the significantly increased risk of retinal damage due to the absence of lenses.
Last reviewed on RxList: 5/5/2016
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