Pharmacology of Dexamethasone

Introduction/Overview Dexamethasone is a potent synthetic glucocorticoid, a cornerstone agent in the therapeutic arsenal for managing a wide spectrum of inflammatory, autoimmune, allergic, and neoplastic conditions. As a member of the corticosteroid class, its clinical utility stems from its profound anti-inflammatory and immunosuppressive properties, which significantly exceed those of the endogenous hormone cortisol. The introduction … Read more

Pharmacology of Prednisolone

1. Introduction/Overview Prednisolone is a synthetic glucocorticoid of paramount clinical significance, representing a cornerstone in the therapeutic management of a diverse spectrum of inflammatory, autoimmune, allergic, and neoplastic disorders. As an active metabolite of prednisone, it exerts potent anti-inflammatory and immunosuppressive effects, making it one of the most widely prescribed medications globally. The clinical utility … Read more

Pharmacology of Hydrocortisone

Introduction/Overview Hydrocortisone, also known as cortisol, represents the primary endogenous glucocorticoid hormone secreted by the zona fasciculata of the adrenal cortex. As a pharmaceutical agent, it serves both as replacement therapy in deficiency states and as an anti-inflammatory and immunosuppressive drug. Its pharmacology is fundamental to understanding both endocrine physiology and the therapeutic application of … Read more

Pharmacology of Propylthiouracil

Introduction/Overview Propylthiouracil (PTU) is a thiourea-derivative antithyroid medication that has been a cornerstone in the management of hyperthyroidism for over seven decades. As a member of the thioamide class, it functions primarily by inhibiting the synthesis of thyroid hormones, thereby reducing the metabolic burden of thyrotoxicosis. The clinical relevance of propylthiouracil persists despite the development … Read more

Pharmacology of Carbimazole

Introduction/Overview Carbimazole represents a cornerstone in the medical management of hyperthyroidism, a condition characterized by excessive synthesis and secretion of thyroid hormones. As a thionamide derivative, it functions as a prodrug, exerting its therapeutic effects following metabolic conversion. The clinical relevance of carbimazole is substantial, given the prevalence of disorders such as Graves’ disease and … Read more

Pharmacology of Levothyroxine

1. Introduction/Overview Levothyroxine sodium, the synthetic sodium salt of the L-isomer of thyroxine (T4), represents the cornerstone of thyroid hormone replacement therapy. As a bioidentical hormone, its pharmacology is intrinsically linked to the physiology of endogenous thyroid hormone synthesis and action. The clinical management of hypothyroidism, one of the most prevalent endocrine disorders globally, is … Read more

Pharmacology of Glibenclamide

Introduction/Overview Glibenclamide, also known as glyburide in the United States, represents a cornerstone oral hypoglycemic agent within the sulfonylurea class. Its introduction marked a significant advancement in the pharmacological management of type 2 diabetes mellitus, providing a means to augment endogenous insulin secretion. The drug’s primary clinical relevance stems from its potent insulinotropic effect, which … Read more

Pharmacology of Metformin

Introduction/Overview Metformin, a dimethylbiguanide, represents a cornerstone in the pharmacological management of type 2 diabetes mellitus. Its clinical introduction in the late 1950s and subsequent widespread adoption have established it as a first-line oral antihyperglycemic agent. The drug’s enduring relevance stems from its robust efficacy, favorable safety profile, and association with potential benefits beyond glycemic … Read more

Pharmacology of Insulin

1. Introduction/Overview Insulin represents a cornerstone of pharmacotherapy for diabetes mellitus, a metabolic disorder characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. The discovery of insulin in 1921 by Banting, Best, Collip, and Macleod transformed type 1 diabetes from a universally fatal disease into a manageable chronic condition. As a … Read more

Pharmacology of Disulfiram

Introduction/Overview Disulfiram represents a cornerstone pharmacotherapeutic agent in the management of chronic alcohol use disorder, operating through a distinctive aversive mechanism rather than by reducing craving or inducing euphoria. Originally investigated in the 1930s for its potential as an anti-parasitic agent, its profound interaction with ethanol was serendipitously discovered, leading to its subsequent development and … Read more