PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 6291889-3 1982 In vitro addition of cimetidine (0.12 mg/ml) and ranitidine (0.06 mg/ml) again led to prolongation of plasmatic thrombin time only after cimetidine, reaching double the initial value. Ranitidine 49-59 coagulation factor II, thrombin Homo sapiens 112-120