Most patients require 20 to 30 treatments to emerge from depression, over 4 to 6 weeks. The treatment lasts about a half hour, has no side effects, and patients are able to resume their normal day going to work, to school, etc.
Unlike medication, TMS has virtually no side effects. Sometimes there is a mild headache after the first couple of treatments. The only significant risk is of TMS causing an epileptic seizure during treatment.