Anodal tDCS in Chronic Migraine With Medication Overuse

Patients randomized to the tDCS group were treated with the following parameters: duration of stimulation of 20 minutes per session with a 2 mA intensity of anodal stimulation.

In the sham group, the stimulation setting was exactly the same but the stimulation intensity was set according to a ramping up/ramping down method and delivered only in the first and last 30 seconds of each session.