A comparison of blood loss caused by two prolonged-release formulations of indomethacin (‘Flexin Continus’ and ‘Indocid’ R) in normal healthy male volunteers
1988
SummaryFaecal blood loss arising from two prolonged-release formulations of indomethacin was compared in a double-blind, parallel group study in 12 healthy male volunteers. After a 1-week run-in period on placebo, subjects were allocated at random to receive 150 mg indomethacin per day, either as controlled-release ‘Flexin Continus’ tablets or as slow-release ‘Indocid’ R capsules, for 2 weeks and followed up for a further 1 week. Faecal specimens were collected over α 4-day period in each week and blood loss calculated using a 51Chromium-labelled red cell count method. Mean blood loss during the placebo run-in period was 2.6 ml/4 days in both study groups. Mean blood loss during treatment Weeks 2 and 3 with ‘Flexin Continus’ was 8.6 ml/4 days and 7.9 ml/4 days, respectively, and during treatment with ‘Indocid’ R capsules was 13.9 ml/4 days and 14.2 ml/4 days, respectively. There was a carry-over effect from both preparations as seen by a steady decrease in blood loss during the week after treatment. The m...
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