Psoralens intercalate with the pyrimidine bases of DNA (box in upper left portion of the figure). With exposure to ultraviolet A (UVA), psoralen pyrimidine monofunctional adducts are formed.

The three main types of phototherapy are broad band UVB, narrow band UVB and PUVA (psoralen plus UVA). Broad band UVB uses the full UVB spectrum of wavelengths to treat skin conditions ...

PUVA (psoralen plus ultraviolet A). This treatment combines UVA lamp sessions with a drug called psoralen. You either take the drug as a pill or put it on your skin as a cream, lotion, gel ...

Another type of UV treatment you might have for cancer is called PUVA. This is less common. PUVA combines UVA light with a drug called psoralen. Psoralen makes your skin sensitive to light. You then ...

UVA light is often combined with an oral medication, psoralen. Together, they are a treatment called PUVA. PUVA may be completed in two different ways: PUVA bath: Involves soaking in water with ...

You might have UVB or psoralen-UVA (PUVA) phototherapy or targeted phototherapy (laser treatment). PUVA involves taking the drug psoralen, either by mouth or applied like paint, along with the ...

Psoralens cause a sunburn-like reaction where ... ingredients are combined with a longer amount of time spent with UVA exposure. People in places closer to the equator have a higher risk for ...

Oxsoralen-Ultra, in combination with a special type of phototherapy called PUVA (Psoralen plus UVA light) therapy, has been shown to improve severe, recalcitrant, disabling psoriasis.(1 ...

Psoralens increase the susceptibility of melanocytes to UVA light therapy. UVA light penetrates deeper into skin tissues. While it is effective in re-pigmentation, there can be a few side effects ...