With ADHD there are really only two options; atomoxetine (Strattera) and stimulants like aderall or ritalin (or any of the dozens of time-release versions of those two drugs).
I did stimulants for years and they really distorted my sense of self in a way that was hard to put a finger on until I got out of the long-term traumatic situation I was in. I felt like life was a treadmill and I was looking at my feet the whole time — I could go really fast but I lost sight of everything around me. I switched to atomoxetine and while it still takes effort to start something, it’s much easier for me to take a task to completion (or at least further towards completion).
Amantadine and certain antidepressants are said to help some people affected by AD(H)D as well. But talk to your doctor before you go "oh, amantadine is cheap otc flu med...". And it depends on a lot of factors, like your exact symptoms (with/without hyperactivity), treatment goals, side effects and secondary problems. Really really talk to a doctor about this, getting "the meds" right is complicated and takes some trial and error.
I did stimulants for years and they really distorted my sense of self in a way that was hard to put a finger on until I got out of the long-term traumatic situation I was in. I felt like life was a treadmill and I was looking at my feet the whole time — I could go really fast but I lost sight of everything around me. I switched to atomoxetine and while it still takes effort to start something, it’s much easier for me to take a task to completion (or at least further towards completion).