Introduction Phenytoin is a first-generation anticonvulsant and hydantoin derivative widely utilized for the management of generalized tonic-clonic seizures, complex partial seizures, and status epilepticus. It also has historical use in certain cardiac arrhythmias. Known for its narrow therapeutic index, phenytoin requires careful dosing and monitoring, yet remains a mainstay in epilepsy therapy due to its … Read more
Mechanism of Action of Miralax Introduction Miralax, with the active ingredient polyethylene glycol 3350 (PEG 3350), is a commonly used osmotic laxative indicated for the treatment of occasional constipation. Its popularity stems from its non-stimulant mechanism, gentle action on the gastrointestinal tract, and favorable safety profile. Miralax does not cause dependency and is generally well-tolerated, … Read more
Introduction Resmetirom is a liver-directed, selective thyroid hormone receptor-beta (THR-β) agonist used in the treatment of noncirrhotic nonalcoholic steatohepatitis (NASH) with moderate to advanced fibrosis. Its unique pharmacological profile allows for hepatic targeting to correct lipid metabolism abnormalities while avoiding systemic thyroid hormone-related side effects. Approved in 2024, resmetirom is a first-in-class therapeutic designed to … Read more
Introduction Roflumilast is an oral selective phosphodiesterase-4 (PDE4) inhibitor used in the long-term management of severe chronic obstructive pulmonary disease (COPD) associated with chronic bronchitis. Unlike bronchodilators that target airway smooth muscle, roflumilast works primarily through anti-inflammatory mechanisms. Its distinct pharmacological action makes it a valuable adjunct in reducing the frequency of exacerbations in COPD … Read more
Introduction Desmopressin (1-deamino-8-D-arginine vasopressin; DDAVP) is a synthetic analogue of the natural antidiuretic hormone vasopressin. It exhibits strong antidiuretic properties with minimal vasopressor activity, which makes it an effective and safer alternative in treating disorders involving water balance and bleeding diatheses. Its high affinity for V2 receptors and negligible action on V1 receptors differentiates it … Read more
Introduction Angiotensin Receptor Blockers (ARBs) are a class of drugs primarily used in the management of hypertension, heart failure, and diabetic nephropathy. They selectively inhibit the binding of angiotensin II to the angiotensin type 1 (AT₁) receptor, providing an alternative to ACE inhibitors with fewer adverse effects like cough and angioedema. Mechanism of Action (Stepwise) … Read more
Introduction Vonoprazan is a novel potassium-competitive acid blocker (P-CAB), introduced as a more potent and faster-acting alternative to proton pump inhibitors (PPIs). It is primarily used for acid-related disorders such as gastroesophageal reflux disease (GERD), peptic ulcer disease, and Helicobacter pylori eradication. Mechanism of Action (Stepwise Points) Pharmacokinetics Clinical Uses Adverse Effects Comparative Analysis Feature … Read more
Introduction Strattera, the brand name for atomoxetine, is a non-stimulant medication used primarily in the treatment of attention-deficit hyperactivity disorder (ADHD). Unlike stimulant medications such as methylphenidate or amphetamines, atomoxetine works through selective modulation of norepinephrine. Mechanism of Action (Stepwise Points) Pharmacokinetics Clinical Uses Adverse Effects Comparative Analysis Feature Atomoxetine (Strattera) Methylphenidate Amphetamine Drug Class … Read more
Introduction Buprenorphine is a semi-synthetic opioid derived from thebaine, widely used in both pain management and opioid dependence treatment. Its unique receptor profile—acting as a partial agonist at μ-opioid receptors—gives it a favorable safety and efficacy profile compared to full agonists. Mechanism of Action (Stepwise Points) Pharmacokinetics Clinical Uses Adverse Effects Comparative Analysis Feature Buprenorphine … Read more
Introduction Alendronate is a nitrogen-containing bisphosphonate used primarily in the treatment and prevention of osteoporosis and other bone-resorptive disorders. It acts by inhibiting osteoclast-mediated bone resorption, thereby maintaining or increasing bone mineral density. Mechanism of Action (Stepwise Points) Pharmacokinetics Clinical Uses Adverse Effects Comparative Analysis Parameter Alendronate Risedronate Zoledronate Route Oral Oral IV Dosing Frequency … Read more
