Which medical term means an abnormal increase in the forward curvature of the lower or lumbar spine? - 4684768
The molecular structure of caffeine. Caffeine belongs to the family of heterocyclic compounds known as purines. It has the systematic name 3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione; it is also known as 1,3,7-trimethylxanthine, and 1,3,7-trimethyl-2,6-dioxopurine.
1 Coffee, soda, and tea are the most common sources of caffeine in the American diet. 2  Discontinuation of regular caffeine use may produce withdrawal symptoms. 3  The effects of caffeine persist for about three hours or less.4  Caffeine is found in some combination medications and weight control products. The scientific name for caffeine is 1,3,7-trimethylxanthine. 2  Caffeine is considered to be the most commonly used psychoactive drug in the world. 3  Coffee, soda, and tea are the most common sources of caffeine in the American diet. 4  Discontinuation of regular caffeine use may produce withdrawal symptoms.