Clinical data | |
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Trade names | Demadex, Tortas, Wator |
Other names | Torsemide, Torsemide (USAN US) |
AHFS/Drugs.com | Monograph |
MedlinePlus | a601212 |
License data | |
Routes of administration | By mouth, intraveneous |
Drug class | Loop diuretic |
ATC code | |
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Pharmacokinetic data | |
Bioavailability | 80-90% |
Protein binding | Highly bound (>99%). |
Metabolism | Liver (80%) |
Elimination half-life | 3.5 hours; Cirrhosis: 7-8 hours |
Identifiers | |
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CAS Number | |
PubChem CID | |
IUPHAR/BPS | |
DrugBank | |
ChemSpider | |
UNII | |
KEGG | |
ChEBI | |
ChEMBL | |
CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.164.924 |
Chemical and physical data | |
Formula | C16H20N4O3S |
Molar mass | 348.42 g·mol−1 |
3D model (JSmol) | |
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Torasemide, also known as torsemide, is a diuretic medication used to treat fluid overload due to heart failure, kidney disease, and liver disease. It is a less preferred treatment for high blood pressure. [1] It is taken by mouth or by injection into a vein. [1]
Common side effects include headache, increased urination, diarrhea, cough, and dizziness. [1] Other side effects may include hearing loss and low blood potassium. [1] Torasemide is a sulfonamide and loop diuretic. [1] Use is not recommended in pregnancy or breastfeeding. [2] It works by decreasing the reabsorption of sodium by the kidneys. [1]
Torasemide was patented in 1974 and came into medical use in 1993. [3] It is on the World Health Organization's List of Essential Medicines. [4] It is available as a generic medication. [2] In 2021, it was the 180th most commonly prescribed medication in the United States, with more than 2 million prescriptions. [5] [6]
It is used to treat fluid overload due to heart failure. It is sometimes used to treat high blood pressure. [1] Compared with furosemide, torasemide is associated with a lower risk of rehospitalization for heart failure and an improvement in New York Heart Association class of heart failure. [7] [8] [9] In heart failure it may be safer and more effective than furosemide. [10] [11] [12] Long-term outcomes with torasemide may be better than with furosemide in patients with heart failure. [13]
No evidence of torasemide-induced ototoxicity has been demonstrated in humans. [14]
Loop diuretics, including torsemide, may decrease total body thiamine, particularly in people with poor thiamine intake, and this depletion may worsen heart failure. It is therefore reasonable to either also give thiamine supplements or to check blood thiamine levels in those being treated with chronic loop diuretics. [15]
Compared with other loop diuretics, torasemide has a more prolonged diuretic effect than equipotent doses of furosemide and relatively decreased potassium loss. [16]
Torasemide is the recommended name of the drug (rINN) according to the (INN), which is the drug naming system coordinated by the World Health Organization. Torsemide is the official name of the drug according to the (USAN), which is the drug naming system coordinated by the USAN Council, which is co-sponsored by the American Medical Association (AMA), the United States Pharmacopeial Convention (USP), and the American Pharmacists Association (APhA).
In May 2024, the US FDA conditionally approved the first torsemide animal medication for dogs. UpCard-CA1 (torsemide oral solution) was conditionally approved for use with concurrent therapy with pimobendan, spironolactone, and an angiotensin-converting enzyme (ACE) inhibitor for the management of pulmonary edema (fluid build-up in lungs) in dogs with congestive heart failure caused by myxomatous mitral valve disease (MMVD). [17] [18]
Heart failure (HF), also known as congestive heart failure (CHF), is a syndrome caused by an impairment in the heart's ability to fill with and pump blood.
Furosemide is a loop diuretic medication used to treat edema due to heart failure, liver scarring, or kidney disease. It has had many trade names including Discoid, Frusemide, Lasix and Uremide. Furosemide may also be used for the treatment of high blood pressure. It can be taken intravenously or orally. When given intravenously, furosemide typically takes effect within five minutes; when taken orally, it typically metabolizes within an hour.
Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids. It is taken by mouth.
Hydrochlorothiazide, sold under the brand name Hydrodiuril among others, is a diuretic medication used to treat hypertension and swelling due to fluid build-up. Other uses include treating diabetes insipidus and renal tubular acidosis and to decrease the risk of kidney stones in those with a high calcium level in the urine. Hydrochlorothiazide is taken by mouth and may be combined with other blood pressure medications as a single pill to increase effectiveness. Hydrochlorothiazide is a thiazide medication which inhibits reabsorption of sodium and chloride ions from the distal convoluted tubules of the kidneys, causing a natriuresis. This initially increases urine volume and lowers blood volume. It is believed to reduce peripheral vascular resistance.
Antihypertensives are a class of drugs that are used to treat hypertension. Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke, heart failure, kidney failure and myocardial infarction. Evidence suggests that reduction of the blood pressure by 5 mmHg can decrease the risk of stroke by 34% and of ischaemic heart disease by 21%, and can reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease. There are many classes of antihypertensives, which lower blood pressure by different means. Among the most important and most widely used medications are thiazide diuretics, calcium channel blockers, ACE inhibitors, angiotensin II receptor antagonists (ARBs), and beta blockers.
Enalapril, sold under the brand name Vasotec among others, is an ACE inhibitor medication used to treat high blood pressure, diabetic kidney disease, and heart failure. For heart failure, it is generally used with a diuretic, such as furosemide. It is given by mouth or by injection into a vein. Onset of effects are typically within an hour when taken by mouth and last for up to a day.
Loop diuretics are pharmacological agents that primarily inhibit the Na-K-Cl cotransporter located on the luminal membrane of cells along the thick ascending limb of the loop of Henle. They are often used for the treatment of hypertension and edema secondary to congestive heart failure, liver cirrhosis, or chronic kidney disease. While thiazide diuretics are more effective in patients with normal kidney function, loop diuretics are more effective in patients with impaired kidney function.
Bumetanide, sold under the brand name Bumex among others, is a medication used to treat swelling and high blood pressure. This includes swelling as a result of heart failure, liver failure, or kidney problems. It may work for swelling when other medications have not. For high blood pressure it is not a preferred treatment. It is taken by mouth, or by injection into a vein or muscle. Effects generally begin within an hour and last for about six hours.
Chlortalidone, also known as chlorthalidone, is a thiazide-like diuretic drug used to treat high blood pressure, swelling, diabetes insipidus, and renal tubular acidosis. Because chlortalidone is effective in most patients with high blood pressure, it is considered a preferred initial treatment. It is also used to prevent calcium-based kidney stones. It is taken by mouth. Effects generally begin within three hours and last for up to three days. Long-term treatment with chlortalidone is more effective than hydrochlorothiazide for prevention of heart attack or stroke.
Valsartan, sold under the brand name Diovan among others, is a medication used to treat high blood pressure, heart failure, and diabetic kidney disease. It belongs to a class of medications referred to as angiotensin II receptor blockers (ARBs). It is a reasonable initial treatment for high blood pressure. It is taken by mouth.
Metolazone is a thiazide-like diuretic marketed under the brand names Zytanix, Metoz, Zaroxolyn, and Mykrox. It is primarily used to treat congestive heart failure and high blood pressure. Metolazone indirectly decreases the amount of water reabsorbed into the bloodstream by the kidney, so that blood volume decreases and urine volume increases. This lowers blood pressure and prevents excess fluid accumulation in heart failure. Metolazone is sometimes used together with loop diuretics such as furosemide or bumetanide, but these highly effective combinations can lead to dehydration and electrolyte abnormalities.
Eplerenone, sold under the brand name Inspra, is an aldosterone antagonist type of potassium-sparing diuretic that is used to treat chronic heart failure and high blood pressure, particularly for people with resistant hypertension due to elevated aldosterone. It is a steroidal antimineralocorticoid of the spirolactone group and a selective aldosterone receptor antagonist (SARA).
Nebivolol is a beta blocker used to treat high blood pressure and heart failure. As with other β-blockers, it is generally a less preferred treatment for high blood pressure. It may be used by itself or with other blood pressure medication. It is taken by mouth.
Pimobendan, sold under the brand name Vetmedin among others, is a veterinary medication. It is a calcium sensitizer and a selective inhibitor of phosphodiesterase 3 (PDE3) with positive inotropic and vasodilator effects.
Acute decompensated heart failure (ADHF) is a sudden worsening of the signs and symptoms of heart failure, which typically includes difficulty breathing (dyspnea), leg or feet swelling, and fatigue. ADHF is a common and potentially serious cause of acute respiratory distress. The condition is caused by severe congestion of multiple organs by fluid that is inadequately circulated by the failing heart. An attack of decompensation can be caused by underlying medical illness, such as myocardial infarction, an abnormal heart rhythm, infection, or thyroid disease.
Management of heart failure requires a multimodal approach. It involves a combination of lifestyle modifications, medications, and possibly the use of devices or surgery.
SGLT2 inhibitors are a class of medications that inhibit sodium-glucose transport proteins in the nephron, unlike SGLT1 inhibitors that perform a similar function in the intestinal mucosa. The foremost metabolic effect of this is to inhibit reabsorption of glucose in the kidney and therefore lower blood sugar. They act by inhibiting sodium/glucose cotransporter 2 (SGLT2). SGLT2 inhibitors are used in the treatment of type 2 diabetes. Apart from blood sugar control, gliflozins have been shown to provide significant cardiovascular benefit in people with type 2 diabetes. As of 2014, several medications of this class had been approved or were under development. In studies on canagliflozin, a member of this class, the medication was found to enhance blood sugar control as well as reduce body weight and systolic and diastolic blood pressure.
Finerenone, sold under the brand name Kerendia and Firialta, is a medication used to reduce the risk of kidney function decline, kidney failure, cardiovascular death, non-fatal heart attacks, and hospitalization for heart failure in adults with chronic kidney disease associated with type 2 diabetes. Finerenone is a non-steroidal mineralocorticoid receptor antagonist (MRA). It is taken orally.
Doping in figure skating involves the use of illegal performance-enhancing drugs (PEDs), specifically those listed and monitored by the World Anti-Doping Agency (WADA). Figure skaters occasionally have positive doping results but it is not common. Bans can be enforced on figure skaters by the International Skating Union (ISU) and each country's individual skating federation. These bans can often be career ending due to the competitive nature of figure skating. A ban may be revoked if it can be proved that the skater tested positive for a prescribed medication. Some figure skaters will use PEDs to help with recovery time, allowing them to train harder and longer. Figure skating is an aesthetic sport that combines both athleticism and artistic licence, where weight-loss substances will have little effect on athletic performance but skaters may be perceived as more graceful and sleek, which is required for an athlete to be competitive.
Tirzepatide is an antidiabetic medication used for the treatment of type 2 diabetes and for weight loss. Tirzepatide is administered via subcutaneous injections. It is sold under the brand names Mounjaro for diabetes treatment, and Zepbound for weight loss.