Intranasal ketamine confers rapid antidepressant effect in depression
The first controlled evidence has been released showing that an intranasal ketamine spray conferred an unusually rapid antidepressant effect ?- within 24 hours ?- and was well tolerated in patients with treatment-resistant major depressive disorder. One of the most common NMDA receptor antagonists, ketamine is an FDA-approved anesthetic. It has been used in animals and humans for years. Ketamine has also been a drug of abuse and can lead to untoward psychiatric or cognitive problems when misused. In low doses, ketamine shows promise in providing rapid relief of depression, with tolerable side effects.
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