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Besides the OTC-strength H2 blockers, there are versions of Axid (nizatidine), Pepcid (famotidine), and Tagamet (cimetidine) available by prescription. Prescription H2 blockers are higher in dosage ...
However, most studies have been short-term, and safety data are limited. Always speak with a healthcare provider before taking a supplement to ensure that the supplement and dosage are appropriate for ...