Methamphetamine is a synthetic stimulant belonging to the amphetamine group. It has a strong activating effect on the central nervous system and is commonly known under names such as Crystal, Crystal Meth, Meth, Ice. Due to its rapid and intense effects, the risk of abuse and dependence is significantly increased.
Forms of consumption
- Smoking (“Crystal”)
- Snorting
- Intravenous injection
- Oral consumption
Depending on the method of consumption, effects may occur within seconds to minutes and often last between 6 and 12 hours.
Effects
| Effect | Category |
|---|---|
| Strong activation, alertness | Cognitive |
| Euphoria, increased drive and energy | Emotional |
| Appetite suppression, weight loss | Physical |
| Increased heart rate and body temperature | Physical |
| Reduced fatigue, insomnia | Psychophysiological |
Methamphetamine primarily increases the release of dopamine, norepinephrine and serotonin, leading to pronounced stimulation and a strong reward effect.
Risks and side effects
| Risk | Details |
|---|---|
| Cardiovascular strain | High blood pressure, cardiac arrhythmias |
| Neurocognitive impairment | Memory, concentration, impulse control |
| Depressive “crash” after effects wear off | Dopamine depletion |
| Tension, restlessness, aggression | Dose-dependent |
| Dental and skin problems | “Meth mouth”, scratching / skin excoriation |
| Sleep disturbances | Often lasting several days |
| High addiction potential | Especially with frequent use |
Psychological effects
- Paranoid thoughts
- Hallucinations
- Anxiety / panic
- Irritability and impulsivity
- “Meth psychosis” (especially after high doses or long-term use)
Detectability in drug testing
| Test type | Detection window (indicative) |
|---|---|
| Urine | 2–5 days (longer with chronic use) |
| Saliva | Approx. 1–24 hours |
| Blood | 6–24 hours |
| Hair | Up to 90 days |
Dependence and special characteristics
Methamphetamine has a high addictive potential. This is not due to a single use, but rather to the repeated and intense release of dopamine. Regular consumption can lead to tolerance, strong cravings and often to social withdrawal.
In summary
Methamphetamine is a powerful stimulant, but it carries considerable physical and psychological health risks. Early screening through drug testing can help assess patterns of use and support timely psychological or medical intervention.


