What are the pills used for adhd?

Many. I assume you mean treatments. There are stimulants-the best & safest, atypical antidepressants, tricyclic antidepressants, alpha2-cholinergic agonists, narcolepsy drugs, cholinergic drugs. Treatemnt of diseeases that mimic add, see your doctor or neurodevelomentalist to get the entire run down. Every med is different with every patient, although stimulants are effective in over 80% of patients.
Stimulants. Most commonly used are stimulants. Big warning is many children with an add diagnosis have a discipline problem. Add medicines do not correct discipline.