Caffeine tablets
Caffeine tablets are a type of dietary supplement that contains the stimulant compound caffeine, which is naturally found in various plants. These tablets are commonly used to increase alertness and improve concentration. They can also be used to treat or manage certain medical conditions, such as migraines and headaches.
- Category
- Stimulant
- Molecular Formula
- C8H10N4O2
- Mechanism of Action
- Caffeine works by stimulating the central nervous system (CNS), heart, muscles, and the centers that control blood pressure. It mainly does this by blocking the neurotransmitter adenosine's receptors, increasing excitability in the brain.
- Evidence Grade
- A
Other Names
- Alertness aid
- Caffeine pills
- Wakefulness-promoting agent
Primary Benefits
- Increases alertness
- Improves cognitive performance
- Enhances physical performance
- Relieves minor headaches
- Can help with weight loss
Recommended Dosage
| Adults |
100-200 mg per day, not to exceed 400 mg per day |
| Children |
Not recommended |
Side Effects
- Insomnia
- Nervousness
- Restlessness
- Stomach irritation
- Nausea
- Vomiting
- Increased heart rate
- Frequent urination
Precautions
- People with heart conditions
- Pregnant or breastfeeding women
- Individuals with sleep disorders
- People with high blood pressure
- Individuals with anxiety disorders
Interactions
- Adenosine
- Alcohol
- Anticoagulant / Antiplatelet drugs
- Clozapine
- Ephedrine
- Lithium
- Theophylline
Key References
- Caffeine: Cognitive and Physical Performance Enhancer or Psychoactive Drug? - Current Neuropharmacology
- Caffeine and the central nervous system: mechanisms of action, biochemical, metabolic and psychostimulant effects - Brain Research Reviews
- Caffeine and exercise: metabolism, endurance and performance - Sports Medicine
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