1. Introduction: Beyond the “Male Hormone” Androgens are a class of steroid hormones often simplified as “male hormones,” but their physiological reach extends far beyond that label, playing crucial roles in the development and health of both sexes. These substances are responsible for the development of male secondary sexual characteristics and have profound effects on … Read more
Oral contraceptives (OCs) are hormone-containing medications taken to prevent pregnancy and for management of various gynecologic conditions. They are among the most widely used medicines globally, and have undergone major changes in formulation, pharmacokinetics, and safety since their introduction. Types of Oral Contraceptives Type Active Ingredients Examples Clinical Features Combined Oral Contraceptives (COCs) Estrogen (usually … Read more
Introduction Brief Overview of Progesterone Progesterone is a crucial hormone in the human body, predominantly known for its role in the female reproductive system. It is a steroidal hormone primarily produced by the corpus luteum in the ovary following ovulation and in smaller amounts by the adrenal glands. During pregnancy, it is also produced in … Read more
Introduction Overview of Estrogens: Definition and Biological Significance Estrogens are a group of steroid hormones crucial for the development and functioning of both female and male reproductive systems, although they are primarily considered female hormones. They play a significant role in sexual and reproductive development, particularly in women. Beyond their reproductive functions, estrogens are also … Read more
Introduction Linzagolix, brand named Yseltyยฎ, is a selective, orally administered, non-peptide small molecule gonadotrophin-releasing hormone (GnRH) receptor antagonist developed by Kissei Pharmaceutical, aimed at treating uterine fibroids and endometriosis in women of reproductive ageโ1โ. Here is an in-depth insight into Linzagolix’s pharmacology, along with some recent updates: Mechanism of Action Linzagolix operates by binding to … Read more
Introduction Gonadotropin-releasing hormone (GnRH) antagonistsย have redefined several aspects of endocrine and reproductive medicine by offering a more direct and immediate means of suppressing the hypothalamic-pituitary-gonadal (HPG) axis than earlier therapies. Whileย GnRH agonistsย (e.g., leuprolide, goserelin) initially occupy receptor sites and trigger a transient surge of gonadotropins before downregulating them,ย GnRH antagonistsย bind competitively to pituitary GnRH receptors and … Read more
Gonadotropin-releasing hormone (GnRH) agonists are synthetic peptide analogues of native GnRH engineered to resist enzymatic degradation and to produce sustained receptor activation that ultimately suppresses pituitary LH/FSH and downstream sex steroid synthesis after an initial flare; they are foundational in endocrine therapeutics for prostate cancer, endometriosis, uterine fibroids, central precocious puberty, ART protocols, and selected … Read more
Introduction and Chemical Nature Danazol is a synthetic isoxazole derivative of 17ฮฑ-ethinyl testosterone. It was developed for its unique endocrine properties and mild androgenic activity, making it useful in various gynecological and hematological conditions. Structurally, its modifications confer the ability to suppress gonadotropin secretion and interact with multiple steroid receptors. Mechanism of Action Danazol exerts a … Read more
Introduction Testosterone is a key steroid hormone primarily secreted by the testes in males and, to a lesser extent, by the ovaries in females and the adrenal glands in both sexes. It is the most important androgen, critically influencing the development and maintenance of male secondary sexual characteristics, muscle mass, bone density, and overall metabolic health. … Read more
Introduction Oral contraceptive drugs, employed primarily for preventing unwanted pregnancies, embody a range of formulations with distinct pharmacological profiles to cater to individual needs. Here’s a comprehensive overview of their pharmacology, types, recent advancements, adverse effects, and contraindications: Oral Contraceptive Pills: An Overview Oral contraceptive pills, often simply referred to as “the pill,” are a … Read more