Methamphetamine, commonly referred to as meth, is a powerful and highly addictive central nervous system stimulant drug. It is a synthetic substance that is chemically similar to amphetamine, a substance used to treat certain medical conditions like attention deficit hyperactivity disorder (ADHD) and narcolepsy. However, methamphetamine possesses a more potent stimulating effect on the brain and a longer duration of action, making it more addictive and dangerous.
Typically, methamphetamine appears as a white, odorless, and bitter-tasting crystalline powder, but it can also be found in a solid tablet or in a crystal form known as "crystal meth." It can be ingested through various routes, including oral ingestion, smoking, snorting, or injecting the dissolved substance directly into the bloodstream.
Once methamphetamine enters the body, it rapidly increases the release and blocks the reuptake of certain neurotransmitters, particularly dopamine, norepinephrine, and serotonin. As a result, it leads to an intense euphoric sensation, increased energy, alertness, and feelings of invincibility. These effects, however, are short-lived and often accompanied by negative consequences like increased heart rate, elevated blood pressure, insomnia, hallucinations, agitation, and severe mood swings.
Long-term use of methamphetamine can severely damage both the physical and mental health of individuals. It can cause tooth decay (referred to as "meth mouth"), malnutrition, weight loss, skin sores, memory loss, paranoia, aggression, and psychiatric disorders. Furthermore, addiction to methamphetamine is notoriously difficult to overcome, as it rewires the brain's reward system, leading to intense cravings and compulsive drug-seeking behaviors.
