title: Influence of ranitidine on plasma metoprolol concentrations.
mesh_terms: D004347:Drug Interactions; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000378:metabolism*; D011899:Ranitidine / Q000378:metabolism*
chemical_list: D011899:Ranitidine; D008790:Metoprolol