A single-entity amphetamine product combining the neutral sulfate salts of dextroamphetamine and amphetamine, with the dextro isomer of amphetamine saccharate … Speed is a drug, also called \’amphetamine\’. It usually appears as a powder. Speed also has many nicknames, like you can see above. Amphetamine is a CNS stimulant that causes hypertension and tachycardia with feelings of increased confidence, sociability and energy. It suppresses appetite … Amphetamine. A powerful stimulant that keeps people alert, usually sold as an off-white or pinkish powder – that sometimes look like small crystals. Amphetamine, a stimulant of the phenethylamine class, is found in ADHD-treatment drugs such as Adderall®, Vyvanse®, and ProCentra®. Because of its stimulant …