Therapy of Inflammatory Bowel Disease using 5-Aminosalicylic Acid, 4-Aminosalicylic Acid and Olsalazine Retention Enemas: Review of Clinical Trials

Role of 5-aminosalicylic acid (5-ASA) in treatment of inflammatory bowel disease: a systematic review.

Authors' objectives To perform a systematic review of the efficacy of 5-aminosalicylic acid (5-ASA) compounds (oral and topical) in the treatment of inflammatory bowel disease (IBD), both ulcerative colitis (UC) and Crohn's disease (CD), in the acute phase for inducing remission and for the prevention of relapses or recurrences. Also, to evaluate the influence of several factors (such as dosage...

Electrochemical Synthesis of 5-Aminosalicylic Acid from 5- Nitrosalicylic Acid in Alkaline Media

5-Aminosalicylic acid (5-ASA) is currently prepared by electrochemical reduction of 5-nitrosalicylic acid (5-NSA) in acidic media. In this work, electrolytic reduction of 5-NSA in alkaline media is presented. Reactionconditions and parameters such as anode and cathode electrodes, electrolyte type, reaction time, temperature,current, and the pH for isolation of product are investigated. The yiel...

Comparison of bismuth citrate and 5-aminosalicylic acid enemas in distal ulcerative colitis: a controlled trial.

An enema that contained a complex of bismuth citrate and polyacrylate was compared with 5-aminosalicylic acid (5-ASA) enemas for treatment of distal ulcerative colitis. The multicentre trial involving 63 patients was randomised and double blind with enemas given over four weeks; clinical, sigmoidoscopic, and histological assessments were made. Improvements were seen in both treatment groups. Cl...

aminosalicylic acid to 5-aminosalicylic acid in topical treatment of ulcerative colitis. Digestion

Nephrotoxic lesions from 5-aminosalicylic Acid.

5-Aminosalicylic acid given to rats as a single intravenous injection led to necrosis of the proximal convoluted tubules and of the renal papilla. These two lesions developed at the same time and the cortical lesions did not appear to be a consequence of the renal papillary necrosis. Since the compound possesses the molecular structure both of a phenacetin derivative and of a salicylate these o...