DrVirgo
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133. A 28-year old woman is being treated with antibiotics for a community-acquired UTI. After a dayof horseback riding, she develops a severe rash on sun-exposed surfaces. Which of the following antibiotics is most likely to have caused this reaction?
A. Amoxicillin-Clavulanate
B. Aztreonam
C. Cefotaxime
D. Cephalexin
E. Ciprofloxacin
(explain why)
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| babli
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ciprofloxacin induced photosensitivity.
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| robin082006
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E
Quinolones, Sulfonamide, and Tetracycline are three groups of drugs that often cause photosensitivity.
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| DrVirgo
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Right. 
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| gpsbrar
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Add Fluoroquinolones too to your list. Cipro is fluoroquinolone. And out of Fluoroquinolones Sparfloxacin is the one which gives most photo sensitivity. In general Tetracyclines are notorious and then come sulfonamides.
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