Stimulants speed up the body’s systems. This class of drugs includes: Prescription drugs such as amphetamines [Adder- all® and Dexedrine®], methylphenidate [Concerta® and Ritalin®], diet aids [such as Didrex®, Bontril®, Preludin®, Fastin®, Adipex P®, Ionomin®, and Meridia®] and other illicitly used drugs such as methamphetamine, cocaine, methcathinone, and other synthetic...

Amphetamines are stimulants that speed up the body’s system. Some are legally prescribed and used to treat attention-deficit hyperactivity disorder (ADHD).

White, crystalline powder derived from coca leaves. Cocaine base (crack) looks like small, irregularly shaped white rocks. Cocaine is an intense, euphoria-producing stimulant drug with strong addictive potential.

Khat is a flowering evergreen shrub that is abused for its stimulant-like effect. Khat has two active ingredients, cathine and cathinone.