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PHOTOFRIN (porfimer sodium) for Injection is a photosensitizing agent used in the photodynamic therapy (PDT) of tumors and of high-grade dysplasia (HGD) in Barrett's esophagus (BE). Following reconstitution of the freeze-dried product with 5% Dextrose Injection (USP) or 0.9% Sodium Chloride Injection (USP), it is injected intravenously. This is followed 40–50 hours later by illumination of the tumor or the esophageal segment with HGD in BE with laser light (630 nm wavelength). PHOTOFRIN (porfimer sodium) is not a single chemical entity; it is a mixture of oligomers formed by ether and ester linkages of up to eight porphyrin units. It is a dark red to reddish brown cake or powder. Each vial of PHOTOFRIN contains 75 mg of porfimer sodium as a sterile freeze-dried cake or powder. Hydrochloric Acid and/or Sodium Hydroxide may be added during manufacture to adjust the pH to within 7.2-7.9. There are no preservatives or other additives. The structural formula below is representative of the components present in PHOTOFRIN (porfimer sodium) .
Figure 1 : Structure of Porfimer Sodium
What are the possible side effects of porfimer (Photofrin)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
- pale skin, feeling light-headed or short of breath, rapid heart rate, trouble concentrating;
- cough with yellow or green mucus, stabbing chest pain, feeling short of breath, coughing up mucus or blood;
- tight feeling in your throat, trouble swallowing;
- fever, chills;
- sudden numbness or weakness, problems with vision,...
Last reviewed on RxList: 5/19/2011
This monograph has been modified to include the generic and brand name in many instances.
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