DrugDigest: Ranitidine ( Zantac ): Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.
Ranitidine: Information from the RxList.
Tritec: Ranitidine bismuth citrate. Product information for US residents in PDF format. [Acrobat Reader required]
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Zantac75.com: A dynamic gathering place where medical professionals can obtain information about heartburn and digestive health.