PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8866640-4 1996 RESULTS: The average plasma concentration of nortriptyline at steady state (Css) divided by the amount of nortriptyline administered per time rose significantly in a patient with concomitant administration of diltiazem, suggesting increased bioavailability and/or decreased clearance of nortriptyline. Nortriptyline 45-58 cytidine monophosphate N-acetylneuraminic acid synthetase Homo sapiens 76-79