Caffeine is a bitter, white crystalline xanthine alkaloid and psychoactive stimulant. Caffeine was first isolated from coffee in 1820. It can also be derived from kola nut, tea, guarana and other plant sources that contain it along with other compounds.
Caffeine is a central nervous system stimulant drug used as an aid to stay awake, for mental alertness due to fatigue, as an adjunct with other drugs for pain relief, and as a power and energy accelerate.
Caffeine has effects similar to Ephedrine but it works through different mechanisms. Caffeine is an adenosine antagonist reduces the breakdown of norepinephrine within the synaptic junction. Like Ephedrine, caffeine as a stimulant and thermogenic and is commonly taken to boost energy or mental concentration. It stimulates the central nervous system and the metabolism. Once metabolized, caffeine can increase lipolysis in the body. It may also increase the effectiveness of other substances such as ephedrine.
Caffeine anhydrous is a dehydrated form of caffeine that is a powerful energy accelerant. Unlike regular caffeine, caffeine anhydrous contains no water and acts faster than caffeine.
For dieters feeling sluggish that need just a little something extra to get them through the day, caffeine is the obvious solution. This no-calorie stimulant does the job quickly and effectively and can get the couch potato off the couch and up exercising.
Many products containing caffeine anhydrous contains as much caffeine as one or two cups of coffee. It is recommended to limit the use of caffeine containing medications, foods, or beverages while taking caffeine supplements as excess caffeine intake may cause nervousness, irritability, sleeplessness and occasional rapid heart beat.