[Clinical features of nonsteroidal anti-inflammatory drug-induced colopathy].

NSAID induce a broad spectrum of toxicologic manifestations throughout the gastrointestinal tract, including the large intestine. Even though several studies indicated that NSAIDs can cause perforation and bleeding of diverticula or they exacerbate inflammatory bowel disease, NSAIDs possibly damage the normal large intestine; such involvement has been characterized by ulceration, stricture, colitis and the suppository induced rectal ulcer or proctitis. While severe stricture, which has been referred to as "diaphragm-like stricture", has been known to be the most characteristic phenotype of the colonic involvement, NSAID-induced colonic ulceration should be regarded as a preceding stage for the stricture formation. Further epidemiological studies and therapeutic trials are warranted to clarify NSAID-induced colopathy.