In some pharmacies there tends to be a shortage of certain popular drugs to treat ADHD including brand name and generic Ritalin (methylphenidate) and Adderall (amphetamine). Some of these drugs appear on the US Food and Drug Administration List of drug shortages. If at the doctor’s office and receiving a new prescription of these particular drugs for a recently diagnosed child, be aware of a possible shortage and ask the doctor to call your local pharmacy to see what’s in stock before you walk out the door with the prescription.