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Coffee, tea, red bull, pro plus, chocolate, fizzy drinks


Caffeine is a naturally occurring substance, found in over 60 different plants and is a stimulant and mild diuretic (makes you pee). It is the most commonly used drug in the world as it is found in coffee, tea, chocolate (and chocolate based drinks) and many carbonated and energy drinks. However caffeine can also be taken in isolation in pill or powder form.


As a mild stimulant, Caffeine increases the heart rate and blood pressure. Users report feeling 'perked up' after drinking a cup of tea or coffee and are often more capable of fast paced and sustained 'brain work' after consuming the drug. Caffeine is rapidly absorbed into the bloodstream through the stomach and small intestine and peak effects are usually reached 15 to 45 minutes after consuming the drug. Caffeine is metabolized by the liver and mainly excreted in urine.

Caffeine is also a mild diuretic which means that it tells your body to produce urine and will remove water from your system. To counter this effect users can try drinking a glass of water after each cup of tea and coffee to replace lost fluids. In higher doses (2- 7 cups of coffee per day) Caffeine can cause side effects including headaches, nausea, dizziness, restlessness and inability to sleep, tense muscles and irregular heartbeat. Even higher doses can produce anxiety attacks, ringing ears, diarrhea, convulsions and seeing light flashes.

Many users report withdrawal symptoms even after short periods without this drug. These withdrawal symptoms include effects like abdominal pain, grumpiness, headaches, cravings, tiredness, lethargy and confusion.

The standard dose of caffeine required for stimulant effects to be noticed is 200mg which is equivalent to about 2 cups of coffee although many users feel an effect at a much lower dose. Tolerance to the drug develops rapidly and users might find that they need to consume more and more caffeine over time to achieve the same effects.


Caffeine is legal to buy or sell.