From: Should We Treat Depression with drugs or psychological interventions? A Reply to Ioannidis
 | Percent Response | Drug/Placebo | |||
---|---|---|---|---|---|
Initial Antidepressant Studies 1957 ~1990: | Drug | Placebo | Difference | Ratio | References |
Very early 1957-1974 Imipramine | 70% | 39% | 31% | 1.8 | [19] |
1953-1990 All older antidepressant (TCA class) | 63% | 36% | 27% | 1.7 | [20] |
1953-1990 All older antidepressant (MAO class) | 66% | 32% | 35% | 2.1 | [20] |
1973-1980 Trazodone | 61% | 29% | 32% | 2.1 | [21] |
Early fluoxetine (Prozac) studies | 64% | 32% | 32% | 2.0 | [77] |
More Recent Studies to Present: | Â | Â | Â | Â | Â |
Antidepressant (TCA's ~1979-91)) | 46% | 31% | 15% | 1.5 | [78] |
Venlafaxine (a newer antidepressant) | 45% | 25% | 20% | 1.8 | [79] |
Severe outpatient depression (Duloxetine, a newer antidepressant) | 42% | 21% | 21% | 2.0 | [35] |
Duloxetine (all patients) | 48% | 35% | 12% | 1.3 | [35] |
Paroxetine (a newer antidepressant) Ioannidis example of no efficacy | 53% | 43% | 11% | 1.2 | [28] |