Scientists have recently been studying the possible use of ketamine as a fast-acting treatment for depression, particularly major depressive disorder and bipolar depression.
Ketamine is predominantly used as a medication for starting and maintaining anesthesia, for humans and domestic animals. It has also been used as a recreational drug. But with low, subanesthetic doses, it may be effective in helping to treat depression quickly, rather than in the weeks that it can take some other depression medications to reach their full effect.
The review of these recent studies and another study appear in the Harvard Review of Psychiatry, but you can read a summary at Science Daily.
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