Drug bioavailability and disposition vary according to body weight and weight loss after bariatric surgery. This study evaluates the impact of body weight and weight loss on the pharmacokinetics of various probe drugs, and compares these effects in three groups of patients receiving either a gall bladder operation, gastric bypass or a very low calorie diet.
Age range
18 Years
Sex
ALL
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Bioavailability of drugs (1)
Timeframe: 0 hours and 0.25, 0.5, 1, 1.5, 2, 3, 4, 4.25, 4.5, 5, 5.5, 6, 8, 10*, 12*, 23 and 24 hours following administration
Bioavailability of drugs (2)
Timeframe: 0 hours and 0.25, 0.5, 1, 1.5, 2, 3, 4, 4.25, 4.5, 5, 5.5, 6, 8, 10*, 12*, 23 and 24 hours following administration