A systematic review of 119 print and online news articles from 2015 to 2020 found that media coverage of ketamine for psychiatric disorders was extremely positive (68.9% of articles). The rapid antidepressant effect was frequently emphasized (73.1% of articles), while longer-term safety and efficacy received little attention. Side-effects were reported in 80.7% of articles, mainly acute psychotomimetic effects and addiction risk, but rarely cardiovascular or bladder effects. Key opinion leaders, such as clinicians, often provided overly optimistic quotes that went beyond the existing evidence base. The authors conclude that information shaping patient expectations is being communicated through the media, and clinicians should address patients' beliefs directly.
A 4-week course of subcutaneous racemic ketamine produced short-term clinical benefit in a minority of people with treatment-resistant depression, with response rates declining substantially after treatment cessation. Among 130 participants, 30% responded at treatment end (Montgomery-Åsberg Depression Rating Scale reduction ≥50%), but only 17% remained responders 4 weeks later, and over 50% experienced less than a 25% reduction in depression scores. No difference in response was found between fixed and flexible dosing regimens. Prior ketamine treatment during an earlier randomized trial did not affect later outcomes. No suicides or suicidal behavior requiring admission occurred, and only expected side effects were observed.