Caffeine
Caffeine
Also known as Tea · Coffee · Various
Images
Quick reference
Duration
Experience
Primary effects
- Caffeine acts as a central nervous system stimulant, promoting an alert state of wakefulness or providing a jolt to counter tiredness.
- It supports sustained individual productivity and fosters ritual, social bonding, and communication.
Negatives / side effects
- High or excessive doses can lead to jitteriness, dizziness, irritability, headache, diarrhea, and can impede sleep.
- Serious overdose symptoms include vomiting, chest pains, rapid heartbeat, breathing difficulties, or convulsions, requiring immediate medical attention.
- Lethal overdose is rare but possible, with doses exceeding 5-10 grams or 150-200mg per kg of body weight being potentially fatal.
Aftereffects / comedown
- Habitual caffeine consumption can lead to addiction.
Reference dosage
Reference ranges from third-party harm-reduction databases. Individual response varies enormously — start lower than you think.
| threshold | 10mg+ |
| common | 50mg+ |
| strong | 150mg+ |
| heavy | 400mg+ |
Reagent testing
| Marquis | No reaction / faint |
| Mandelin | Green |
Adulterant detection: Caffeine itself is the adulterant in other drugs. As a standalone substance, adulterants with more potent stimulants are the concern — orange/brown Marquis would indicate amphetamine presence.
Often used to cut other stimulants. Useful as a reference/negative control for Marquis reactions.
Source
Reference fields and narrative for Caffeine extracted from The Drug Users Bible by Dominic Milton Trott (MxZero Publishing, 2022).
drugusersbible.comHarm reduction notice
This platform provides educational and harm-reduction information adapted from public reference material. It does not endorse, encourage, or facilitate drug use. It is not medical advice. If you or someone near you may be in a medical emergency, contact local emergency services immediately.