once gastrointestinal bleeding had stopped , recurrence of bleeding while receiving prevention therapy ( cimetidine tablets 300 mg one three times a day and at bedtime , or mylanta ii liquid 30 ml every hour , or cimetidine plus hourly antacids , or placebo ) was evaluated in 194 of the patients in the bleeding phase .
C0017181
gastrointestinal bleeding
C0019080
bleeding