Can’t wake them, seizure, or trouble breathing? Call 911 (U.S.)Overdose response
Substance library

STIMULANT

Methamphetamine

Crystal meth is a strong stimulant. Effects often last 4–12 hours.

Effects
Often 4–12 hours
Weighing
10 mg of material is 0.010 g
Warning signs
Chest pain or severe overheating

Dose and how to weigh it

Reported amounts are 10–20 mg smoked or 10–25 mg swallowed. Effects and strength can vary. Amounts can’t be swapped between routes or compared to Adderall.

0.010 g is 10 mg of material. Use a milligram scale with a reliable reading at that weight. A shard or scoop can be any size.

Test it and give it time

Use a separate fentanyl strip and follow the dilution directions. Ask a drug-checking service if it can measure strength.

Avoid taking more while effects build or mixing with other stimulants. If you smoke, use your own mouthpiece. Get support for severe low mood or exhaustion after repeated use.

Sources