Conclusions : International differences in prescriber behaviour may influence , and in turn be influenced by , the conduct of clinical trials .
Objective : International differences are thought to exist in dosages used by clinicians treating mood disorders .
This study examined international dosage differences in antidepressant clinical trials , using a data base formed and maintained as a component of a Cochrane review of comparative clinical trials of fluoxetine .
A double‐blind comparison of the efficacy and safety of milnacipran and fluoxetine in depressed inpatients
This double-blind , r and omised , multicentre study compared the antidepressant efficacy and safety of two doses of milnacipran ( 100 mg/day and 200 mg/day ) and fluoxetine ( 20 mg/day ) in 289 in patients with endogenous depression . After a placebo washout period of 4–7 days , assessment s were performed weekly during ; the first 4 weeks , and then after 6 , 8 and 12 weeks , using the 17-itein Hamilton Depression Rating Scale ( HDRS ) . the Montgomery - Åsberg Depression Rating Scale ( MADRS ) and the Clinical Global Impression ( CGI ) . HDRS total score was reduced by a mean of 14.8 in the milnacipran 100 mg/day group , 12.9 in the milnacipran 200 mg/day group and 12.1 in the fluoxetine  20 mg/day group . MADRS total score decreased by 17.4 , 15.8 and 14.6 , respectively . No significant difference could be shown between the three treatment groups for either the HDRS or MADRS total scores . However , the time-by-time change showed a trend in favour of milnacipran 100 mg/day , which was found significantly superior to fluoxetine at day 28 for several converging parameters ( MADRS , CGI-3 ) . Overall , efficacy ratings for all parameters were highest for milnacipran 100 mg/day , followed by milnacipran 200 mg/day and fluoxetinc 20 mg/day . Side-effect profiles were not significantly different between groups except for a significantly greater frequency of dose-related increase hi heart rate ≥ 100 bpm in milnacipran recipients and a significantly greater weight loss in fluoxetine recipients
Conclusions : International differences in prescriber behaviour may influence , and in turn be influenced by , the conduct of clinical trials .
Objective : International differences are thought to exist in dosages used by clinicians treating mood disorders .
This study examined international dosage differences in antidepressant clinical trials , using a data base formed and maintained as a component of a Cochrane review of comparative clinical trials of fluoxetine .