l-METH, a vasoconstrictor, is the active constituent of the Vicks Inhaler decongestant (Procter & Gamble, Cincinnati, OH), an over-the-counter product containing about 50 mg of the drug (Smith et …

Oct 14, 2025 · Crystal meth is the common name for crystal methamphetamine, a strong and highly addictive drug that affects the central nervous system. There is no legal use for it. Also called “ice” or...

Apr 30, 2025 · Learn more about the short- and long-term effects associated with meth use, symptoms of meth addiction, and treatment options.

Nov 20, 2024 · Methamphetamine is a lab-made (synthetic) stimulant with high addiction potential. When sold as shiny bluish-white rocks or crystals, it may be called “crystal meth,” “Tina,” or “ice.” …

Crystal meth resembles glass fragments and is an illegally altered version of the prescription drug that is cooked with over-the-counter drugs in meth labs.

Aug 21, 2025 · Methamphetamine, commonly referred to as meth, is a highly addictive substance that produces stimulant effects. 1 This article will provide more information about meth, including the …

Apr 7, 2025 · Methamphetamine is a synthetic stimulant belonging to the amphetamine family. It primarily elevates levels of dopamine, norepinephrine, and serotonin in the brain, triggering …

Jan 13, 2026 · methamphetamine, potent and addictive synthetic stimulant drug that affects the central nervous system (the spinal cord and brain). Methamphetamine is prescribed for the treatment of …

Oct 12, 2024 · Methamphetamine (also known as meth or crystal meth) is a very addictive drug. Read about the signs of meth addiction and health problems it causes.

Methamphetamine, or meth, is a powerful stimulant that speeds up the central nervous system, causing increases in heart rate, blood pressure, and how fast the body uses energy (Figure 1).