A metanfetamina (N-metilanfetamina), popularmente conhecida como cristal quando produzida clandestinamente, é uma droga sintética estimulante cujos efeitos … Meth is commonly manufactured in illegal, hidden laboratories, mixing various forms of amphetamine (another stimulant drug) or derivatives with other … Meth (methamphetamine) is a synthetic stimulant built from a precursor chemical (usually pseudoephedrine or a compound called … The meth chemical formula tells a story that goes beyond chemistry class. It explains why this synthetic drug is so addictive, why methamphetamine withdrawal … Crystal meth is a drug. It usually appears as crystals or as a powder. Crystal meth contains methamphetamine. Crystal meth also has nicknames like meth, …