Many people have co-existing depression and/or anxiety and take other medications in addition to stimulant ADHD meds. Talk to your doctor about these concerns. Serotonin syndrome is a valid concern with SSRIs, SNRIs, and depression medications, but I don’t think adding a stimulant would cause an increase in the chance of the syndrome, but I’m not a doctor, so you need to speak to your doctor or pharmacist.
Penny
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism