Abstracts in Urgent Care: June, 2010

Upper Gastrointestinal Tract Hemorrhage, Warfarin, and Urinary Tract Antibiotics Key point: Ciprofloxacin increased GI hemorrhage while on coumadin by twice as much, and cotrimoxazole by four times. Citation: Fischer HD, Juurlink DN, Mamdani MM, et al. Hemorrhage during warfarin therapy associated with cotrimoxazole and other urinary tract anti-infective agents: A population-based study. Arch Intern Med. 2010; 170(7): 617-621. Hemorrhage is a well-known side effect of long-term warfarin use in older patients. Interactions between warfarin and …

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