I'll start with this disclosure: I'm not a medical professional, anything I add here is solely my understanding as an adult with ADHD. You need to talk to a medical professional, trained in helping someone with ADHD, before starting any medication.
The five most common stimulant medicatios are:
1. Methylphenidate (Ritalin, Concerta)
2. Amphetamine (Adderall)
3. Dexmethylphenidate (Focalin)
4. Lisdexamfetamine (Vyvanse)
5. Dextroamphetamine (Dexedrine)
The five most common non-stimulant medications are:
1. Atomoxetine (Strattera)
2. Guanfacine (Intuniv)
3. Clonidine (Kapvay)
4. Bupropion (Wellbutrin)
5. Modafinil (Provigil)