Conclusions Lithium continues as the st and ard and most extensively evaluated treatment for bipolar disorder , especially for long-term prophylaxis
Background Lithium has been used clinical ly for 70 years , mainly to treat bipolar disorder .
Competing treatments and exaggerated impressions about complexity and risks of lithium treatment have led to its declining use in some countries , encouraging this up date about its safe clinical use .
Differential Efficacy of Lithium and Carbamazepine in the Prophylaxis of Bipolar Disorder: Results of the MAP Study
In a r and omized clinical trial with an observation period of 2.5 years , the differential efficacy of lithium versus carbamazepine was compared in 171 bipolar patients ( DSM-IV ) . In order to investigate the efficacy of the two drugs in clearly defined sub sample s , a series of subgroup analyses was carried out . First , patients with a bipolar I disorder ( n = 114 ) were analyzed separately . In these patients , lithium was superior to carbamazepine . In contrast , carbamazepine was at least equally as efficacious as lithium in the sub sample of patients with bipolar II disorder or bipolar disorder not otherwise specified ( n = 57 ) . In a second analysis on differential efficacy , the whole sample was subdivided into a classical subgroup ( bipolar I patients without mood-incongruent delusions and without comorbidity ; n = 67 ) and a nonclassical subgroup including all other patients ( n = 104 ) . Classical bipolar patients had a significantly lower hospitalization rate under lithium than under carbamazepine prophylaxis ( 26 vs. 62 % , p = 0.012 ) . For the nonclassical group , a tendency in favor of carbamazepine was found . In a third step , we analyzed the impact of episode sequence on differential efficacy . In a global view , the episode sequence prior to the index episode was not correlated to differential efficacy . Our results might , however , indicate that patients with an episode sequence of mania-depression-free interval responded better to lithium . Besides differential efficacy , suicidal behavior and patients ’ satisfaction with treatment were investigated . Regarding suicidal behavior , a trend in favor of lithium was found . The data on patients ’ satisfaction were significantly in favor of carbamazepine . In conclusion , lithium appears to be superior to carbamazepine in classical bipolar cases and might have additional impact on proneness to suicide . The distinctly larger group of patients with nonclassical features might profit more from carbamazepine which seems to be well accepted by the patients . Hence , treatment alternatives to lithium are desirable for the majority of bipolar patients
Conclusions Lithium continues as the st and ard and most extensively evaluated treatment for bipolar disorder , especially for long-term prophylaxis
Background Lithium has been used clinical ly for 70 years , mainly to treat bipolar disorder .
Competing treatments and exaggerated impressions about complexity and risks of lithium treatment have led to its declining use in some countries , encouraging this up date about its safe clinical use .