Oral S-ketamine effective after deep brain stimulation in severe treatment-resistant depression and extensive comorbidities.

This case report describes successful maintenance treatment with oral S-ketamine in a patient with severe depression, who previously was resistant to electroconvulsive therapy and deep brain stimulation, and who also had comorbid psychotic and obsessive compulsive symptoms. © BMJ Publishing Group Limited 2020. Re-use permitted under CC BY. Published by BMJ.