NEW You can now listen to Fox News articles! People experiencing severe depression with suicidal symptoms may not have to wait weeks for traditional antidepressants to take effect. A recent review suggests that a single intravenous ketamine infusion can provide rapid relief for some patients. Originally developed as an anesthetic, ketamine is a medicine that can reduce pain and, in some cases, help treat depression, but it can also be misused as a recreational drug , experts warn. SINGLE DOSE OF POWERFUL PSYCHEDELIC CUTS DEPRESSION SYMPTOMS IN CLINICAL STUDY Researchers from the University of Connecticut School of Medicine reviewed 26 clinical trials that included more than 1,100 patients. Approximately 626 received ketamine and 540 served as controls who did not take the drug. Most of the trials included patients with major depressive disorder, but 11.5% included those with bipolar depression and 7.7% included people with both unipolar and bipolar depressive diagnoses .…