   Caffeine
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Sigma KEE - Caffeine
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Caffeine
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Caffeine is a central nervous system (CNS) Stimulant of the methylxanthine class. It is the world's most widely consumed psychoactive drug. Unlike many other psychoactive substances, it is Legal and unregulated in nearly all parts of the world. There are several known mechanisms of action to explain the effects of caffeine. The most prominent is that it reversibly blocks the action of adenosine on its receptors and consequently prevents the onset of drowsiness induced by adenosine. Caffeine also stimulates certain portions of the autonomic NervousSystem.[from Wikipedia]
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Diuretic |
A diuretic is any substance that promotes diuresis, the increased production of urine. This includes forced diuresis. A diuretic tablet is sometimes colloquially called a water tablet. There are several categories of diuretics. All diuretics increase the excretion of water from the body, through the kidneys. There exist several classes of diuretic, and each works in a distinct way. Alternatively, an antidiuretic, such as vasopressin (antidiuretic hormone), is an agent or drug which reduces the excretion of water in urine.[from Wikipedia]
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Molecule |
A molecule is the smallest unit of matter of a CompoundSubstance that retains all the physical and chemical properties of that substance, e.g., Ne, H2, H2O. A molecule is two or more Atoms linked by a chemical bond.
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Stimulant |
Any BiologicallyActiveSubstance which has the effect of stimulating the central nervous system, i.e. increasing function or activity in the Brain or SpinalCord.
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