GlossaryAntihistamines: Drug used to offset the effects of histamineHistamine: A chemical released in the body during an allergic reaction, causing inflammation; also used in medical treatment, especially to dilate capillariesCentral nervous system: Brain, spinal cord and their nerve endings Anti-depressants: Any type of medications used to counter depressionProton pump inhibitors (PPIs): Group of drugs that reduce stomach acid production, prevent ulcersRenin: Hormone released by the kidney that helps regulate blood pressure Published on May 29, 2018Last Updated on Jun 01, 2018