Researchers from King’s College in London who tested cognitive therapy along with drug treatment in 149 patients with irritable bowel syndrome (IBS) had expected the combination to help ease the symptoms—for a while. They gave the modality about six months to produce benefits, but they anticipated that the effects would begin to wane by one year after treatment, as is commonly observed with other psychological and physical treatments for IBS.
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It tur ns out that they were right on target. While the effects lasted, however, patients did report improvement.