Introduction Dantrolene is a direct-acting skeletal muscle relaxant uniquely used in the management of malignant hyperthermia, neuroleptic malignant syndrome, and selected cases of chronic spasticity. Unlike centrally acting muscle relaxants, dantrolene acts peripherally at the level of skeletal muscle fibers, making its mechanism of action distinct and high-yield for pharmacology, anesthesia, emergency medicine, and critical … Read more
Introduction Danazol is a synthetic isoxazole derivative of 17-α-ethinyl testosterone with antigonadotropic, antiestrogenic, and weak androgenic properties. It is primarily used in the management of endometriosis, fibrocystic breast disease, hereditary angioedema, and certain gynecologic disorders. Danazol is a high-yield drug in pharmacology, gynecology, and endocrinology examinations because of its hypothalamic–pituitary axis suppression and unique hormonal … Read more
Introduction Daflon is a micronized purified flavonoid fraction (MPFF) widely used in the management of chronic venous disorders and hemorrhoidal disease. It primarily contains diosmin (90%) and hesperidin (10%), both of which are naturally occurring flavonoids with venotonic and vasculoprotective properties. Daflon is extensively prescribed in vascular medicine and surgery and is a high-yield drug … Read more
Introduction Cytarabine (also known as cytosine arabinoside or Ara-C) is a pyrimidine antimetabolite chemotherapeutic agent primarily used in the treatment of acute leukemias, especially acute myelogenous leukemia (AML). It is a cell cycle–specific drug, acting predominantly during the S-phase of the cell cycle. Cytarabine is a cornerstone drug in hematologic malignancies and is a high-yield … Read more
Introduction Cymbalta is the brand name for duloxetine, a serotonin–norepinephrine reuptake inhibitor (SNRI) widely used in the treatment of depressive disorders, anxiety disorders, and chronic pain conditions. Unlike selective serotonin reuptake inhibitors (SSRIs), duloxetine enhances both serotonergic and noradrenergic neurotransmission, making it particularly effective in neuropathic pain and fibromyalgia. Its dual mechanism and pain-modulating properties … Read more
Introduction Cyclophosphamide is a nitrogen mustard–derived alkylating agent widely used in oncology and immunosuppressive therapy. It is classified as a cell cycle–nonspecific cytotoxic drug and is used in the treatment of a broad spectrum of malignancies, as well as autoimmune and inflammatory disorders. Cyclophosphamide is a prodrug that requires hepatic activation, and its DNA-alkylating mechanism … Read more
Introduction Cyclobenzaprine is a centrally acting skeletal muscle relaxant commonly prescribed for the short-term management of acute musculoskeletal conditions associated with muscle spasm. Structurally and pharmacologically related to tricyclic antidepressants, cyclobenzaprine does not act directly on skeletal muscle or neuromuscular junctions. Instead, it exerts its effects at the central nervous system level. Its distinctive central … Read more
Introduction Cyclizine is a first-generation antihistamine belonging to the piperazine class, primarily used as an antiemetic and antivertigo agent. It is commonly prescribed for the prevention and treatment of motion sickness, postoperative nausea and vomiting, and vestibular disorders. Cyclizine is frequently tested in pharmacology, ENT, anesthesia, and nursing examinations because of its central anticholinergic and … Read more
Introduction Corticosteroids are a class of steroid hormones that exert potent anti-inflammatory, immunosuppressive, anti-allergic, and metabolic effects. They are synthetic analogs of endogenous glucocorticoids produced by the adrenal cortex, primarily cortisol. Corticosteroids are extensively used across multiple medical specialties, including internal medicine, pulmonology, dermatology, rheumatology, neurology, and critical care. Their broad mechanism of action at … Read more
Introduction Colace is the brand name for docusate sodium, a stool softener widely used for the prevention and treatment of constipation. It is classified as a surfactant laxative and is commonly prescribed in patients who should avoid straining during defecation, such as post-surgical patients, individuals with hemorrhoids, cardiovascular disease, or postpartum patients. Colace is frequently … Read more
