Neither beta carotene nor vitamin C had any statistically significant effect compared with placebo.
Cardiovascular parameters collected for active treatment groups were compared with placebo to detect drug-associated changes.
A wealth of data indicate that compared with placebo, lithium acutely enhances the effects of antidepressants.
One trial of citalopram showed greater response compared with placebo (Wagner et al, 2004) (Table 1).
Compared with placebo, there was greater improvement in the treatment group as measured by the participants' own reports.
Correlating with this subjective experience, MDMA evoked an increased activation of the visual cortex compared with placebo.
By contrast, during recollection of negative memories, the brain scans showed a decreased activation under MDMA compared with placebo.
Compared with placebo and five other drugs, venlafaxine was linked to an increased risk of suicidal attempts or suicidal thoughts.
Treatment with the drug resulted in a statistically significant reduction in new vertebral fractures compared with placebo.
Compared with placebo, gaboxadol significantly shortened subjective sleep onset latency and increased self-rated sleep intensity and quality.
The study showed a significant decrease in the rate of rise in PSA in patients given Exisulind compared with placebo.
