These negative results show that, within the gastric milieu, garlic oil at this dose does not inhibit H. pylori. A higher dose administered for a longer time-period may be effective. Antibiotics are usually combined with a proton-pump inhibitor or bismuth salt, as the only antibiotic with any in vivo activity against H. pylori in monotherapy is clarithromycin. A proton pump inhibitor raises gastric pH and, by increasing bacterial division, may increase the in vivo activity of garlic oil. This may be worth pursuing in a future trial.
Seventy patients with complicated urinary tract infections were treated with either lomefloxacin (400 mg once daily) or norfloxacin (400 mg twice daily) for 10 to 14 days. A total of 19 (86%) of 22 patients treated with lomefloxacin and 20 (74%) of 27 patients treated with norfloxacin were cured, as defined by a negative culture five to nine days after completion of therapy (p = 0.09). After four to six weeks, the figures were 56% for lomefloxacin and 48% for norfloxacin. Adverse effects in the lomefloxacin group were observed on 20 occasions in 12 patients (one stopped treatment) compared to nine occasions in five patients treated with norfloxacin (difference not significant).
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