E. Selvaag et P. Thune, PHOTOSENSITIVITY REACTION TO METHENAMINE HIPPURATE - A CASE-REPORT, Photodermatology, photoimmunology & photomedicine, 10(6), 1994, pp. 259-260
We describe a 70-year-old woman who in the summer of 1992 presented at
our department with an erythematous and blistering rash on the sun-ex
posed areas of her face, trunc and upper limbs. She had been taking me
thenamine hippurate for several years to prevent urinary tract infecti
ons after an cystopexia operation. Oral photoprovocation with the drug
revealed an immediate reaction after 3 J of ultraviolet A not seen be
fore oral photoprovocation.