Buy Ritalin Online Without Prescription. Ritalin belongs to the family of drugs and can be addictive. However, due to its advantages and benefits for ADHD patients, the FDA has approved this drug and it is now available in drugstores. This drug has ingredients in it that affect the unbalanced chemicals in the brain that are causing ADHD problems. Though this drug has been made legal it should be taken under the supervision of your physician. One must take it along with other medications and therapies to cure ADHD.