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- Bumetanide (3)
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Bumetanide
From Wikipedia, the free encyclopedia
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Bumetanide
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| Systematic (IUPAC) name | |
| 3-butylamino-4-phenoxy-5-sulfamoyl-benzoic acid | |
| Identifiers | |
| CAS number | |
| ATC code | C03 |
| PubChem | |
| DrugBank | |
| Chemical data | |
| Formula | C17H20N2O5S |
| Mol. mass | 364.417 g/mol |
| SMILES | search in , |
| Pharmacokinetic data | |
| Bioavailability | almost complete |
| Protein binding | 97% |
| Metabolism | hepatic |
| Half life | 60-90 minutes |
| Excretion | renal |
| Therapeutic considerations | |
| Pregnancy cat. | |
| Legal status | |
| Routes | oral |
Bumetanide is a loop diuretic of the sulfamyl category to treat heart failure. It is often used in patients in whom high doses of furosemide are ineffective. It is marketed by Hoffmann-La Roche with the brand name Bumex. The main difference between the two substances is in bioavailability. Furosemide is incompletely absorbed in the intestine (40%), and there is substantial inter- and intraindividual differences in bioavailability (range 10-90%). Bumetanide is completely absorbed (80%), and the absorption is not altered when it is taken with food. It is said to be a more predictable diuretic, meaning that the predictable absorption is reflected in a more predictable effect.
Bumetanide is 40 times more potent than furosemide (for patients with normal renal function).
- Bumex (manufacturer's website)
- Bumetanide (patient information)
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| Sympatholytic agents (including alpha) | centrally acting/antiadrenergics (Clonidine, Guanfacine, Methyldopa, Moxonidine, Rescinnamine, Reserpine, Rilmenidine) • ganglion-blocking/nicotinic antagonist (Mecamylamine, Trimethaphan) • peripherally acting/antiadrenergics (Prazosin, Guanethidine, Indoramin, Doxazosin) |
| Vasodilators | Diazoxide • Hydralazine • Minoxidil • Nitroprusside • Phentolamine |
| Other antihypertensives | serotonin antagonist (Ketanserin) • endothelin receptor antagonist (Bosentan, Ambrisentan, Sitaxsentan) |
| Low ceiling diuretics | Thiazide (Bendroflumethiazide, Chlorothiazide, Hydrochlorothiazide) • Chlortalidone • Indapamide • Quinethazone • Mersalyl • Metolazone • Theobromine • Cicletanine |
| High ceiling diuretics | Loop diuretic (Bumetanide, Furosemide, Torasemide) |
| Potassium-sparing diuretics | ESC blockers (Amiloride, Triamterene) • aldosterone antagonists (Spironolactone, Eplerenone, Potassium canrenoate, Canrenone) |