…two faces. As a single dose in seizures it is fast and reliable — high lipid solubility gives onset within a couple of minutes intravenously, and…

…ACE inhibitor Prodrug hydrolysed to enalaprilat. Reduces mortality in heart failure with reduced ejection fraction — the effect is dose-dependent, and underdosing is more often…

…of Henle. The dose–response relationship is a threshold curve, not a line: below the threshold nothing happens, and in renal failure the threshold dose…

…thromboxane synthesis in platelets for their entire lifespan. This is why a low once-daily dose is sufficient, and why the effect persists for 7…

…gout, with the goal of titrating upward until serum urate is stably below 360 μmol/l — not setting a fixed dose and leaving it…

…channel blocker to use: once-daily dosing, a half-life of almost two days, and no dose adjustment in renal impairment. Unlike verapamil and diltiazem…

…dosing and no routine monitoring. Lower risk of intracranial haemorrhage than warfarin — but the short half-life means a missed dose has consequences within hours.

…thiazide diuretic for hypertension. The key point is that the dose–response curve for blood pressure flattens already at 2,5 mg, while the adverse…

…Time-dependent killing means that the dosing interval matters more than the size of any individual dose — four doses are preferable to two large ones.

…full steroid dose without an injection, and the long biological duration means a single dose suffices. Potency is approximately 25 times that of hydrocortisone and…

…giving a predictable dose–effect relationship without the CYP2D6-dependent variability that makes metoprolol response unpredictable. The half-life of 10–12 hours is sufficient…

…therapy. The product can therefore be prescribed in two entirely different ways: as a fixed dose morning and evening with a separate SABA as needed…

…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.

…when blood pressure is already low. The dose threshold lies around 5 μg/kg/min: below that vasodilation predominates, above it the vascular effect…

…and one of the best tolerated for depression and generalised anxiety disorder. What governs dosing is not efficacy but the heart: a dose-dependent QT…

…inhibitor Inhibits intestinal cholesterol uptake via NPC1L1 and reduces LDL by an additional 20–25 % on top of a statin, independently of the statin dose…

…ligand to the α2δ subunit of voltage-gated calcium channels The same mechanism as pregabalin — binding to the α2δ subunit of voltage-gated calcium channels…

…the short duration allows the daily dose to be distributed to mimic the physiological cortisol pattern. Keep the three dose levels distinct: substitution, stress dose…

…the one with the least cardiovascular risk at a low dose. A short half-life of around 2 hours means the effect arrives and resolves…

…lower risk of nocturnal hypoglycaemia than NPH insulin. It is titrated against fasting glucose and nothing else — the morning fasting value drives the evening dose…

…cent of the body's total potassium store — the plasma value indicates the starting point, not the magnitude of the deficit. Rate, not daily dose…

…mg — and confusing them is the most common serious error. The short half-life means the effect cannot be reversed once the dose is given.

…when an ACE inhibitor must be switched due to cough. The target dose in heart failure is 32 mg — four times the usual hypertension dose.

…entirely free of sedation: a distinct minority of patients become drowsy, and this should be asked about in professional drivers. Renal function governs the dose.

…making it combinable with beta-blockers. The price of pure vasodilatation is dependent oedema, which is dose-related and the most common reason for discontinuation.

…patients, and tenths of a milligram in delirium in the elderly, where the lowest effective dose for the shortest possible time is the whole principle…

…short notice. The disadvantages are continuous infusion, an unpredictable dose–response relationship due to binding to plasma proteins, and the risk of heparin-induced thrombocytopenia.

…ketoacidosis and hyperosmolar hyperglycaemic state. Subcutaneously it has an onset within 10–20 minutes and a duration of 3–5 hours; intravenously the half-life…

…largely preserved, which is an explanation but never a guarantee. The key practical distinction is between the three dose levels: analgesia, procedural sedation, and induction…