Are 50 mg 2x a day of zoloft (sertraline) and 20 mg of ritalin 3x a day a safe combination? so a total of 100 mg zoloft (sertraline) + 60 mg ritalin a day. safe ?

Unclear: Nothing is certain in medicine. You are young and i presume otherwise healthy so it is probably ok. However, i would make sure the diagnoses are correct! have a good battery of psychological testing and perhaps neurologic testing to confirm adhd. Check geisinger or temple or u of penn or jefferson or univ of pitt. Or john hopkins. Ekg should be done. Most importantly are they helping? Any side eff.