1/8/2023 0 Comments Half life black ops femaleThe mean half-life of caffeine in plasma of healthy individuals is about 5 hours. Structurally, caffeine (and the other methylxanthines) resembles the purines. In pure form, it is a bitter white powder. This chapter provides a brief summary of the metabolism and physiological effects of caffeineĬaffeine (1,3,7-trimethylxanthine) is a plant alkaloid with a chemical structure of C 8H 10N 4O 2 (see Figure 2–1) and a molecular weight of 194.19. It has numerous pharmacological and physiological effects, including cardiovascular, respiratory, renal, and smooth muscle effects, as well as effects on mood, memory, alertness, and physical and cognitive performance. As stated in Chapter 1, caffeine is the most widely used central nervous system (CNS) stimulant in the world.
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