Χώρα: Αυστραλία
Γλώσσα: Αγγλικά
Πηγή: Department of Health (Therapeutic Goods Administration)
Mesalazine
Orphan Australia Pty Ltd
Medicine Registered
_ _ _ _ Salofalk ® Suppositories - Product Information Page 1 of 8 PRODUCT INFORMATION SALOFALK ® SUPPOSITORIES NAME OF DRUG MESALAZINE Proper name: 5-Aminosalicylic Acid Chemical name: 2-hydroxy-5-aminobenzoic acid, also referred to as 5-amino salicylic acid or 5-ASA C 7 H 7 NO 3 = 153.1 CAS number- 89-57-6 DESCRIPTION Mesalazine is a white to greyish, voluminous powder, slightly pink in colour. It is practically insoluble in ethanol (90%), methanol (70%), water, ether, and chloroform, soluble in HCl (warmed 10% solution); soluble in NaOH (10% solution, with salt formation). SALOFALK suppositories contain mesalazine and hard fat. PHARMACOLOGY PHARMACODYNAMIC PROPERTIES Mesalazine has been identified as the active component of sulfasalazine in inflammatory bowel disease and is thought to have a topical action. The mechanism of action by which mesalazine protects the mucosa in chronic inflammatory bowel disease is not yet fully known. Mesalazine seems to act in multiple ways against several inflammatory mediators and principles. The results of _in vitro_ investigations indicate that inhibition of lipoxygenase may play a role. Effects on prostaglandin concentrations in the intestinal mucosa have also been demonstrated, as has an influence on leukotriene production. Mesalazine may also function as a radical scavenger of reactive oxygen compounds. PHARMACOKINETIC PROPERTIES _GENERAL CONSIDERATIONS: _ The efficacy of mesalazine (5-ASA) appears to be determined not by the systemic but the local availability of the substance at the target site. Metabolism of mesalazine occurs mainly in the intestinal mucosa and, to a lesser extent, in the liver. The main metabolite is N-acetyl-5-aminosa Διαβάστε το πλήρες έγγραφο