Accelerated rTMS for Substance Use Disorder and Depression

This study is testing whether an accelerated form of repetitive transcranial magnetic stimulation (rTMS) — a non-invasive brain stimulation technique — can help reduce stimulant use (cocaine or methamphetamine) and improve depression symptoms at the same time. **You may be eligible if...** - You are between 18 and 65 years old - You have used cocaine or methamphetamine on at least 10 days in the past month - You have a diagnosis of moderate or severe cocaine or methamphetamine use disorder - You have mild to moderate depression symptoms (PHQ9 score ≥ 5) - You can read and speak English well enough to participate **You may NOT be eligible if...** - You have heavy alcohol, benzodiazepine, or sedative use that would make participation unsafe - You have a serious medical condition or terminal illness - You have a history of seizures or a brain implant that would make brain stimulation unsafe - You are pregnant Talk to your doctor to see if this trial is right for you.