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  • Title: Gastrointestinal and liver side effects of drugs in elderly patients.
    Author: Triantafyllou K, Vlachogiannakos J, Ladas SD.
    Journal: Best Pract Res Clin Gastroenterol; 2010 Apr; 24(2):203-15. PubMed ID: 20227033.
    Abstract:
    It is expected that the percentage of people >60 years of age will be 22% worldwide by the year 2050. Multi-morbidity and poly-pharmacy are common in individuals during old age, while adverse drug reactions are at least twice as common in the elderly compared to younger adults. Publications related to drug side effects are rather rare in this age group since most clinical trials exclude patients >75-80 years of age. Gastrointestinal adverse drug reactions studied in the elderly include non-steroidal anti-inflammatory drugs (NSAIDs) and anticoagulant-induced gastrointestinal tract mucosal injuries. Malabsorption, diarrhoea and constipation are common side effects of laxatives, antibiotics, anticholinergics and calcium channel blockers. Drug (amoxycilin/clavulanic acid, isoniazide, nitrofurantoin, diclifenac and methotrexate)-induced hepatotoxicity in the elderly is four times more common than in younger adults and may simulate almost all known liver disorders. Further clinical studies are needed to investigate gastrointestinal and hepatic side effects of drugs in elderly patients.
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