…drug for hypertension and stable angina, and the easiest calcium channel blocker to use: once-daily dosing, a half-life of almost two days, and…

…around 2 hours means the effect arrives and resolves quickly, which is an advantage: the drug suits as-needed use and can be discontinued with…

…and EMPEROR-Preserved, and slowed renal function decline down to eGFR 20 in EMPA-KIDNEY. The glucose-lowering effect diminishes as eGFR falls, but the…

…Jext α- and β-agonist The only drug that reverses all components of anaphylaxis, and the cornerstone of cardiac arrest treatment. The most clinically dangerous…

…blood pressure, or conduction — it inhibits the funny current (If) that drives spontaneous depolarisation of the sinus node and does nothing else. It therefore works…

…within minutes and duration under half an hour. A niche drug: catecholamine-induced hypertensive crisis — phaeochromocytoma, cocaine and amphetamine intoxication, MAO inhibitor crisis — and local…

…and the first months require flare prophylaxis because falling urate levels themselves trigger attacks. Two features make this drug dangerous: the hypersensitivity syndrome and the…

…receptors and thereby removes parasympathetic braking — if there is no such brake to remove, nothing happens, which is the entire explanation for why the drug…

…80 % of absorbed drug is eliminated renally, so renal function governs treatment entirely. Dyspepsia affects one in ten patients and is the most common reason…

…in structurally normal hearts. The CAST trial showed increased mortality after myocardial infarction — that boundary remains the most important fact in the drug's history.

…onset and minimal anticholinergic burden. The drug has two entirely different dosing worlds: a few milligrams in acute psychotic agitation in younger patients, and tenths…

…The rapid afterload reduction triggers reflex sympathetic activation, making the drug unsuitable as first-line treatment in hypertensive crisis — but useful in pre-eclampsia and…

…while systemic vascular resistance and diastolic blood pressure fall, so the drug raises rate but not pressure. Used where rate itself is the problem: bradycardia…

…and depends on noradrenergic and sodium-channel-mediated modulation, not on antidepressant action. What limits treatment is anticholinergic side effects, and what makes the drug…

…maintenance-and-reliever therapy in the same inhaler. The two regimens must never be confused — this is the most common prescribing error with this drug…

…heparin, dalteparin is eliminated renally, so at eGFR below 30 ml/min the effect accumulates and the dose must be adjusted or the drug changed.

…with albuminuria, with or without diabetes. The dose is the same — 10 mg once daily — for all indications, making this drug unusually straightforward to manage.

…and factor VIII. Selectivity for the V2 receptor means it lacks the vasoconstrictive effect of vasopressin. The danger is not the drug itself but the…

…interactions, and an adverse effect profile barely distinguishable from placebo. IMPROVE-IT showed that the additional LDL lowering also translates into fewer cardiovascular events, making…

…glycogenolytic agent and inotrope Two entirely different drugs in the same ampoule. In severe hypoglycaemia, 1 mg intramuscularly is the treatment that a family member…

…never a guarantee. The key practical distinction is between the three dose levels: analgesia, procedural sedation, and induction are different drugs in the same ampoule.