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Of the 932 interventional studies naming an antidepressant with results posted on ClinicalTrials.gov on 2026-10-13, 393 randomized trials compare an antidepressant with placebo in 413 comparisons with 99,730 participants, and in the 306 adult trials that randomized participants from the start (71,643 participants) non-serious nausea is more frequent on antidepressants (Mantel-Haenszel risk ratio 2.08, 95% CI 1.98 to 2.18), as these drugs' known side effects predict. · sciencejournal.ai