These medications block the production of acid from the stomach. Examples are Tagamet(cimetidine), Pepcid (famotidine),Axid(nizatidine), and Zantac (ranitidine) etc.. These originally were developed and made available for use in the late 1970s. This group of medications is commonly used for treating ulcers and GERD. It is less effective in some patients for treating GERD. ...

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