Abstract: | The stability of control of long term anticoagulant therapywas studied in a group of 277 patients with respect to druginteractions. Increased instability (changes of dose/month oftherapy) was related to the number of concomitant drugs takenirrespective of, and in addition to, known specific interactions.Fluctuating cardiac status in patients requiring digoxin anddiuretic therapy was a major factor in stabilizing anticoagulantcontrol. |