Methoxsalen
Chemical compound / From Wikipedia, the free encyclopedia
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Methoxsalen (or xanthotoxin) sold under the brand name Oxsoralen among others, is a medication used to treat psoriasis, eczema, vitiligo, and some cutaneous lymphomas in conjunction with exposing the skin to ultraviolet (UVA) light from lamps or sunlight. Methoxsalen modifies the way skin cells receive the UVA radiation, allegedly clearing up the disease. Levels of individual patient PUVA exposure were originally determined using the Fitzpatrick scale. The scale was developed after patients demonstrated symptoms of phototoxicity after oral ingestion of methoxsalen followed by PUVA therapy. Chemically, methoxsalen belongs to a class of organic natural molecules known as furanocoumarins. They consist of coumarin annulated with furan. It can also be injected and used topically.
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Trade names | Oxsoralen, Uvadex, 8-mop, others |
Other names | xanthotoxin |
AHFS/Drugs.com | Consumer Drug Information |
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Routes of administration | Extracorporeal, By mouth |
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Elimination half-life | ~2 hours |
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ECHA InfoCard | 100.005.516 |
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Formula | C12H8O4 |
Molar mass | 216.192 g·mol−1 |
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