Pharmacy Freak Editorial Team 
Introduction Amikacin is a broad-spectrum aminoglycoside antibiotic primarily used to treat severe Gram-negative bacterial infections, including those resistant to other aminoglycosides. Mechanism of Action of Amikacin involves irreversible inhibition of bacterial protein synthesis by binding to the 30S ribosomal subunit, leading to misreading of mRNA and defective protein formation. Because of its stability against many … Read more
Introduction Ambroxol is a mucolytic and expectorant agent widely used in the treatment of respiratory tract disorders associated with excessive or viscous mucus, such as bronchitis, COPD, and asthma. Mechanism of Action of Ambroxol involves enhancing mucus clearance, stimulating surfactant production, and improving mucociliary transport. It not only facilitates expectoration but also exerts anti-inflammatory and … Read more
Introduction Alprazolam is a short-acting benzodiazepine widely prescribed for anxiety disorders, panic attacks, and generalized anxiety disorder (GAD). Mechanism of Action of Alprazolam involves potentiation of the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) at the GABA-A receptor, resulting in sedation, anxiolysis, and muscle relaxation. Known by its common brand name Xanax, alprazolam has a rapid onset … Read more
Introduction Alpha-adrenergic blockers, also called alpha-blockers, are a class of drugs that antagonize the effects of catecholamines (epinephrine and norepinephrine) at alpha-adrenergic receptors. Mechanism of Action of Alpha-Adrenergic Blockers involves inhibition of alpha-1 and/or alpha-2 receptors, resulting in vasodilation, decreased peripheral vascular resistance, and reduced blood pressure. These drugs are commonly used in the management … Read more
Introduction Allopurinol is a xanthine oxidase inhibitor used primarily in the management of gout and hyperuricemia associated with malignancy or chemotherapy. Mechanism of Action of Allopurinol involves inhibition of uric acid production by blocking the enzyme xanthine oxidase, thereby reducing serum uric acid levels and preventing crystal deposition in joints and tissues. It is a … Read more
Introduction Aldosterone is a mineralocorticoid hormone synthesized in the zona glomerulosa of the adrenal cortex. It plays a vital role in maintaining electrolyte balance, blood volume, and blood pressure through regulation of sodium and potassium homeostasis. Mechanism of Action of Aldosterone involves binding to intracellular mineralocorticoid receptors (MR) in epithelial cells of the distal nephron, … Read more
Introduction Ethanol, commonly referred to as alcohol, is a psychoactive substance and central nervous system (CNS) depressant with widespread social and clinical significance. Mechanism of Action of Alcohol involves modulation of several neurotransmitter systems—most notably GABA, glutamate, and dopamine—leading to sedation, euphoria, impaired motor coordination, and cognitive effects. Ethanol’s pharmacological effects depend on dose, chronicity … Read more
Introduction Albendazole is a broad-spectrum anthelmintic drug belonging to the benzimidazole class. Mechanism of Action of Albendazole involves inhibition of microtubule polymerization in parasitic worms, leading to impaired glucose uptake and depletion of energy stores. It is highly effective against a wide range of intestinal and tissue helminth infections such as ascariasis, hookworm, neurocysticercosis, and … Read more
Introduction Adderall is a central nervous system (CNS) stimulant containing a combination of amphetamine and dextroamphetamine. Mechanism of Action of Adderall involves increasing the levels of key neurotransmitters—dopamine, norepinephrine, and serotonin—in the brain. It is primarily prescribed for Attention-Deficit/Hyperactivity Disorder (ADHD) and narcolepsy, improving focus, alertness, and cognitive performance. Understanding its pharmacological mechanism helps explain … Read more
Introduction Acyclovir is a guanine nucleoside analogue antiviral drug primarily used to treat infections caused by herpes simplex virus (HSV-1 and HSV-2) and varicella-zoster virus (VZV). Mechanism of Action of Acyclovir involves selective inhibition of viral DNA synthesis, resulting in the termination of viral replication. It is widely prescribed for herpes labialis, genital herpes, herpes … Read more
