Posted by ed_uk on December 3, 2004, at 10:32:41
In reply to Re: Sedating tricyclic for use in elderly patients?, posted by SLS on December 3, 2004, at 9:58:39
Hi,
Is doxepin a safer tricyclic for the heart?
Roose SP, Dalack GW, Glassman AH, Woodring S, Walsh BT, Giardina EG.
New York State Psychiatric Institute, N.Y.
BACKGROUND: Many clinicians believe that doxepin is the safest tricyclic with respect to cardiovascular effects. This belief has persisted for two decades despite the absence of rigorous prospective evaluation. METHOD: To address this issue, the authors studied the cardiovascular effects of doxepin in 32 depressed patients with preexisting left ventricular impairment, ventricular arrhythmias, and/or conduction disease. RESULTS: Doxepin (1) did not have a robust effect on heart rate, (2) did not adversely affect left ventricular function, (3) did have a significant antiarrhythmic effect, (4) slowed cardiac conduction, and (5) caused a significant increase in orthostatic hypotension. Five (16%) of the 32 patients dropped out due to cardiovascular side effects. The overall dropout rate was 41%.
CONCLUSIONS: The cardiovascular effects of doxepin in depressed patients with heart disease are comparable to those documented for imipramine and nortriptyline. Doxepin afforded no greater margin of cardiovascular safety; in fact, the drug was poorly tolerated by this patient population.
Ed.
poster:ed_uk
thread:423518
URL: http://www.dr-bob.org/babble/20041201/msgs/423859.html