The antidepressant effect and safety of non-intranasal esketamine: A systematic review.
Sanne Y Smith-ApeldoornMaurice VischjagerJolien Ke VeraartJeanine KamphuisMarije Aan Het RotRobert A SchoeversPublished in: Journal of psychopharmacology (Oxford, England) (2022)
Intravenous, subcutaneous, and possibly oral esketamine may offer an effective and safe addition to the depression treatment armamentarium. However, as most included studies lacked a control group and had small sample sizes, the quality of our results is limited. Different types and formulations of ketamine remain to be compared directly.