1st line treatment Methylphenidate comes by name of ritalin, methril, phenida.
2nd line treatment Atomoxetine by name of Strattera, attentra.
These drugs are not available on small stores only on big stores and hospitals and are not given without prescription, that also from only psychiatrist or neurologist. General physician or child specialist prescription wouldn't work.
Do not diagnose ADHD without reffering to a child psychiatrist or a good psychiatrist if a child psychiatrist is not available in your area but you are in islamabad so it would be easy to find one. Most of neurologists, psychiatrists and child specialists in pakistan donot know how to diagnose ADHD and how to manage it.