Pharmacy Freak Editorial Team 
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
Introduction Ethambutol is a first-line antitubercular drug used as part of combination therapy for the treatment of tuberculosis. It is classified as a bacteriostatic agent and plays a crucial role in preventing the emergence of drug resistance when used with other anti-TB drugs such as isoniazid and rifampicin. Ethambutol is high-yield for examinations because of … Read more
Introduction Esomeprazole is a proton pump inhibitor (PPI) used extensively in the treatment of acid-related gastrointestinal disorders. It is the S-isomer of omeprazole and offers improved pharmacokinetic consistency and acid suppression compared with the racemic mixture. Esomeprazole is a high-yield drug for pharmacology and clinical examinations due to its irreversible enzyme inhibition, acid-activated mechanism, and … Read more
Introduction Escitalopram is a selective serotonin reuptake inhibitor (SSRI) widely prescribed for depressive and anxiety disorders. It is the S-enantiomer of citalopram and represents one of the most selective SSRIs available. Its clinical importance lies in its high efficacy, favorable tolerability, and minimal drug–drug interactions compared with older antidepressants. For medical and pharmacy examinations, escitalopram … Read more
Introduction Erythromycin is a macrolide antibiotic widely used in the treatment of infections caused by gram-positive cocci, atypical pathogens, and certain gram-negative organisms. It is a bacteriostatic agent that inhibits bacterial protein synthesis and serves as an important alternative in patients allergic to penicillin. From an exam perspective, erythromycin is high-yield due to its ribosomal … Read more
Introduction Eplerenone is a selective mineralocorticoid receptor antagonist (MRA) used primarily in cardiovascular disorders such as heart failure and hypertension. It is a steroidal compound structurally related to spironolactone but with greater receptor selectivity, resulting in fewer endocrine adverse effects. From an exam and clinical standpoint, eplerenone is important due to its role in blocking … Read more
Introduction Epinephrine (adrenaline) is an endogenous catecholamine and a potent sympathomimetic agent that acts as a non-selective agonist at both α- and β-adrenergic receptors. It plays a critical physiological role in the “fight-or-flight” response and is widely used clinically in emergency medicine, anesthesia, cardiology, and allergy management. From an exam perspective, epinephrine is a high-yield … Read more
Introduction Entacapone is a catechol-O-methyltransferase (COMT) inhibitor used as an adjunct therapy in Parkinson’s disease, particularly in patients experiencing end-of-dose “wearing-off” phenomena with levodopa. It enhances and prolongs the effect of levodopa by reducing its peripheral metabolism. Entacapone is a high-yield drug in pharmacology and neurology examinations because of its enzyme inhibition–based mechanism and its … Read more
Introduction Enalapril is an angiotensin-converting enzyme (ACE) inhibitor widely used in the management of hypertension, heart failure, and diabetic nephropathy. It is a prodrug that is converted in the body to its active metabolite, enalaprilat. Enalapril is a high-yield drug in pharmacology, cardiology, and internal medicine examinations because it targets the renin–angiotensin–aldosterone system (RAAS), a … Read more
