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In postmenopausal women with recurrent UTIs, L rhamnosus GR-1 and L reuteri RC-14 do not meet the noninferiority criteria in the prevention of UTIs when compared with trimethoprim-sulfamethoxazole. However, unlike trimethoprim-sulfamethoxazole, lactobacilli do not increase antibiotic resistance. TRIAL REGISTRATION isrctn.org Identifier: ISRCTN50717094.
M.A.J. Beerepoot (Mon,) studied this question.