The British Journal of Psychiatry 137: 444-451 (1980)
© 1980 The Royal College of Psychiatrists
Long-term monitoring of tricyclic antidepressant plasma concentrations
H Loo, AK Benyacoub, V Rovei, CA Altamura, M Vadrot and PL Morselli
Plasma levels of antidepressant drugs were measured in 17 depressed
patients at roughly monthly intervals over follow-up periods of three to 26
months. Good results in seven were associated with small fluctuations in
level from visit to visit, while big fluctuations were associated with poor
outcome. Such fluctuations were probably from poor compliance or drug
interaction from self-medication. Severe side effects and cardiotoxicity
were associated with high levels.