Propranolol, sometimes referred to as “Inderal” (brand name), is a non-cardioselective sympatholytic beta blocker that was first synthesized by British scientist James Black in 1964. As a non-selective beta blocker, propranolol prevents endogenous catecholamines (e.g. norepinephrine and epinephrine) from activating Beta-1 and Beta-2 adrenergic receptors within the CNS (central nervous system) and PNS (peripheral nervous …
Prednisone is a synthetic pregnane corticosteroid that was first identified in 1950 by the American microbiologist Arthur Nobile, and thereafter, synthesized in 1955 by the Schering Corporation. As a synthetic derivative of cortisone, prednisone acts by mimicking the physiologic effects of cortisol, the chief endogenous hormone secreted by the adrenal cortex when the body is …
Mirena is a small T-shaped intrauterine device (IUD) that releases the progestin hormone “levonorgestrel” to prevent: pregnancy, heavy menstrual periods, and/or excessive build of the uterus lining in persons on estrogen replacement therapy. When properly inserted within the uterus, Mirena is programmed to release 20 micrograms of levonorgestrel per day, and is expected to remain …