Introduction Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) widely used in the treatment of depressive and anxiety disorders. It was the first SSRI introduced into clinical practice and remains highly relevant due to its long half-life, activating profile, and extensive exam coverage. Fluoxetine is particularly important in pharmacology examinations because of its mechanism at … Read more
Introduction Fluoroquinolones are a broad-spectrum class of synthetic antibacterial agents widely used in the treatment of gram-negative, gram-positive, atypical, and intracellular bacterial infections. Common drugs in this class include ciprofloxacin, levofloxacin, moxifloxacin, and norfloxacin. Fluoroquinolones are extremely high-yield for pharmacology and clinical examinations due to their unique DNA-targeting mechanism, concentration-dependent killing, and characteristic musculoskeletal and … Read more
Introduction Flucytosine (5-fluorocytosine) is a fluorinated pyrimidine antifungal agent primarily used in combination therapy for serious systemic fungal infections. It is especially important in the treatment of cryptococcal meningitis and severe candidiasis, where it is commonly combined with amphotericin B to enhance efficacy and reduce resistance. Flucytosine is high-yield for exams due to its unique … Read more
Introduction Fluconazole is a triazole antifungal agent widely used in the treatment and prophylaxis of systemic and superficial fungal infections. It is especially effective against Candida species and Cryptococcus neoformans. Fluconazole is high-yield for pharmacology and infectious disease examinations due to its selective inhibition of fungal sterol synthesis, excellent oral bioavailability, CNS penetration, and characteristic … Read more
Introduction Flomax is the brand name for tamsulosin, a selective α₁-adrenergic receptor antagonist used primarily in the management of lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH). It is highly exam-relevant due to its receptor selectivity, uroselective action, and reduced cardiovascular adverse effects compared with nonselective α-blockers. Mechanism of Action (Step-wise) Flomax … Read more
Introduction Flecainide is a Class IC antiarrhythmic drug used in the management of supraventricular and selected ventricular arrhythmias. It is a potent sodium channel blocker with strong effects on cardiac conduction velocity and minimal effect on action potential duration. Flecainide is high-yield for pharmacology and cardiology examinations because of its distinctive electrophysiological profile, proarrhythmic risk, … Read more
Introduction Fentanyl is a potent synthetic opioid analgesic belonging to the phenylpiperidine class. It is approximately 50–100 times more potent than morphine and is widely used in anesthesia, perioperative pain control, intensive care, and chronic cancer pain management. Fentanyl is high-yield for pharmacology examinations because of its receptor selectivity, strong analgesic efficacy, rapid onset, and … Read more
Introduction Famotidine is a histamine H₂-receptor antagonist (H₂ blocker) used in the management of acid-related gastrointestinal disorders. It suppresses gastric acid secretion by selectively blocking histamine-mediated stimulation of parietal cells. Famotidine is clinically and exam-relevant due to its receptor specificity, reduced drug interaction profile compared to cimetidine, and widespread use in peptic ulcer disease, gastroesophageal … Read more
Introduction Etoposide is a semisynthetic podophyllotoxin derivative widely used as an antineoplastic agent in the treatment of various solid tumors and hematological malignancies. It is a cell cycle–specific drug, acting primarily during the S and G₂ phases. Etoposide is high-yield for pharmacology and oncology examinations due to its unique enzyme target, characteristic DNA damage mechanism, … Read more
Introduction Ethosuximide is an antiepileptic drug primarily used in the management of absence (petit mal) seizures. It is considered the drug of choice for absence seizures, making it extremely high-yield for pharmacology and neurology examinations. Ethosuximide acts selectively on thalamic neurons involved in seizure generation and has a relatively narrow but clinically important spectrum of … Read more
