Synapedia

Translated automatically – community improvements welcome.

Caffeine

Caffeine is a widely used stimulant that primarily acts by blocking adenosine receptors, thereby promoting alertness and concentration. It increases neuronal activity and can reduce fatigue. Caffeine is consumed in many foods and beverages and is considered safe with moderate use. However, excessive consumption can lead to side effects such as nervousness and sleep disturbances.

Stimulanzien

Mechanism of Action

  • Adenosinrezeptor-Antagonist

Names / Identifiers

IUPAC: Caffeine

Mechanism of Action

Koffein wirkt hauptsächlich als Antagonist der Adenosinrezeptoren, was zu einer erhöhten neuronalen Aktivität und der Freisetzung von Neurotransmittern führt.

Effects

Steigerung der Wachsamkeit
Erhöhung der Konzentration
Verbesserung der körperlichen Leistungsfähigkeit
Verminderung von Müdigkeit
Erhöhung der Herzfrequenz
Anstieg des Blutdrucks

Effects described from scientific sources. Individual experiences vary.

Dosage

Safety NoteIndividual variation, start with a low dose, no medical advice.

Individual sensitivity varies. Not a dosage recommendation.

Duration

Peak1-2 hours
NotesThe duration may vary depending on individual metabolism.
Onset15-45 minutes
Total3-7 hours
After Effects1-3 hours

Risks & Warnings

Warnings

  • Not recommended for heart diseases.
  • Caution in anxiety disorders.

Known Risks

  • medium
  • Koffein kann zu Schlaflosigkeit, Nervosität und erhöhter Herzfrequenz führen.

Safer Use

  • Consume caffeine in moderate amounts.
  • Be aware of symptoms of overdose.

Harm reduction tips do not replace medical advice.

Known Interactions

  • May influence the effects of certain medications.
  • Enhances the effects of other stimulants.

This list is not exhaustive. Interactions can have unpredictable effects.

Legal Status

ATLegal
CHLegal
DELegal
USLegal
NotesKoffein ist in vielen Lebensmitteln und Getränken enthalten und unterliegt keinen besonderen gesetzlichen Beschränkungen.

Not legal advice. Status may change.

Known Interactions

Additive sympathomimetische Stimulation

Amphetamin
Moderate