The majority of the pharmaceuticals that the FDA has approved for marketing in the United States are not on the CSA schedules, including most prescription drugs and all over-the-counter drugs. The NSDUH questionnaire includes some prescription psychotherapeutic drugs that are not on the CSA schedule, such as tramadol (Ultram®) and cyclobenzaprine (Flexeril®).
Methamphetamine is an addictive stimulant drug that strongly activates the central nervous system. It can be smoked, snorted, orally ingested, and injected. It is available in many different forms and may be identified by color, which can range from white to yellow to darker colors such as red and brown. Methamphetamine comes in a powder form that looks like granulated crystals and in a rock form known as “ice,” which is the smokeable version of methamphetamine.
A chart that highlights commonly abused prescription drugs in the US