William Mcdonald

Jan 1, 2024 | ajp.psychiatryonline.org | William McDonald |William Mcdonald

Repetitive transcranial magnetic stimulation (rTMS) received U.S. Food and Drug Administration (FDA) approval in 2008 for the treatment of major depression nonresponsive to multiple medications. The original rTMS protocol requires about 45 minutes of setup and administration time using 10 Hz at 110% of the motor threshold over the left dorsolateral prefrontal cortex, with one session a day for 20–30 days. This method of administration is both cumbersome for patients and costly to administer.