Carboxylic acid derivatives.

摘要

The invention relates to salts formed between ranitidine and a complex of zinc with a carboxylic acid selected from tartaric acid, citric acid and alkyl citric acids, and to solvates of such salts. The salts and solvates thereof are useful in the treatment of gastro-intestinal disorders, such as peptic ulcer disease and non-ulcer dyspepsia.