Caffeine is a methylxanthine alkaloid found in the seeds, nuts, or leaves of a variety of South American and East Asian plants. It is structurally related to adenosine and acts primarily as an adenosine receptor antagonist with psychotropic and anti-inflammatory properties. Caffeine Market binds to adenosine receptors in the central nervous system (CNS) after ingestion, inhibiting adenosine binding. This inhibits adenosine-mediated CNS downregulation, stimulating the activity of the brain's medullary, vagal, vasomotor, and respiratory centres. This agent also stimulates the CNS by promoting neurotransmitter release.