title: Histamine H2 antagonists and the heart.
mesh_terms: D000897:Anti-Ulcer Agents; D005663:Furans / Q000009:adverse effects*; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D011899:Ranitidine
chemical_list: D000897:Anti-Ulcer Agents; D005663:Furans; D011899:Ranitidine