dTMS is well-tolerated and only associated with few side effects. Just a small percentage of patients discontinue treatment because of side-effect-related issues.
The most common side effect, which is reported in about half of patients treated with dTMS, is headaches. These are mild and generally diminish over the course of the treatment. Over-the-counter pain medication can be used to treat these headaches.
About one-third of patients may experience painful scalp sensations or facial twitching during treatment. These also tend to diminish over the course of treatment, although immediate adjustments can be made to coil positioning and stimulation settings to reduce discomfort.
The dTMS machine produces a loud noise, so earplugs are given to the patient during treatment. However, some patients may still complain of hearing problems following the procedure. No evidence suggests these effects are permanent if earplugs are worn.
dTMS has not been associated with gastrointestinal upset, dry mouth, sexual dysfunction, weight gain, sedation or many other side effects caused by antidepressant medications. The most serious risk of dTMS is seizures. However, the risk of a seizure is exceedingly low. Overall, dTMS is a very safe procedure.
*Certain medications, drugs, caffeine, and alcohol may increase the risk of seizures, impact the effectiveness of dTMS, or require a dTMS dose change and should be discussed with your doctor prior to starting treatment — or if any changes in your medication/drug/alcohol or caffeine use should occur during treatment.