I do not take 5ASAs so I don't keep up on it but if this is the first Generic version of Colazal this might be a nice cost effective alternative for some people.
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http://www.tradingmarkets.com/.site/news/BREAKING%20NEWS/946305/
Salix, Watson Launch Authorized Generic Of COLAZAL
(RTTNews) - Friday, Salix Pharmaceuticals Ltd. reported an agreement with Watson Pharma, pursuant to which Watson will market and sell an authorized generic of COLAZAL or balsalazide disodium Capsules. Watson plans to unveil the authorized generic product soon. COLAZAL is an anti-inflammatory drug for the treatment of mildly to moderately active ulcerative colitis
--Keith