diuretic

diuretically, adv.diureticalness, n.
/duy'euh ret"ik/, adj.
1. increasing the volume of the urine excreted, as by a medicinal substance.
n.
2. a diuretic medicine or agent.
[1375-1425; ME d(i)uretik < LL diureticus < Gk diouretikós, equiv. to di- DI-3 + oure- (verbid s. of oureîn to urinate) + -tikos -TIC]

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Any drug that increases the flow of urine from the body.

Diuretics promote removal of excess water, salts, poisons, and metabolic wastes to help relieve edema, kidney failure, or glaucoma. Most types act by decreasing the amount of fluid that is reabsorbed by the kidney's nephrons and passed back into the blood. Diuretics that allow the body to retain potassium are used for patients with hypertension or congestive heart failure.

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      any drug that increases the flow of urine. Diuretics promote the removal from the body of excess water, salts, poisons, and accumulated metabolic products, such as urea. They serve to rid the body of excess fluid (edema) that accumulates in the tissues owing to various disease states.

      There are many types of diuretics, but most act by decreasing the amount of fluid that is reabsorbed by the tubules of the kidneys, whence the fluid passes back into the blood. The most widely used diuretics, the benzothiadiazides (e.g., chlorothiazide), interfere with the reabsorption of salt and water by the kidney tubules. Instead of being reabsorbed, the salt and water are ultimately excreted, thus increasing the flow of urine. After they were synthesized in the late 1950s, the benzothiadiazides replaced most other existing diuretics. They are more convenient than some other diuretics in that they can be taken orally in the form of pills. These drugs are also used to reduce high blood pressure (hypertension).

      Mercurial diuretics (e.g., calomel) work as do benzothiadiazides but are less easy to use. Another class of diuretics are substances that cannot be reabsorbed by the kidney tubules and thus limit the reabsorption of water by the tubules. These include mannitol, sucrose, and urea. Other diuretics (e.g., acetazolamide) work by blocking the reabsorption of sodium bicarbonate by the tubules, thus increasing urine formation. These and still other types are used infrequently in conjunction with the mercurial diuretics.

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Universalium. 2010.

Look at other dictionaries:

  • diuretic — DIURÉTIC, Ă, diuretici, ce, adj., s.n. (Medicament, ceai etc.) care produce sau măreşte diureza. [pr.: di u ] – Din fr. diurétique, lat. diureticus. Trimis de LauraGellner, 18.06.2004. Sursa: DEX 98  diurétic adj. m. (sil. di u ) …   Dicționar Român

  • Diuretic — Di u*ret ic, a. [L. diureticus, Gr. ?, fr. ? to make water; ? through + ? to make water, fr. ? urine: cf. F. diur[ e]tique.] (Med.) Tending to increase the secretion and discharge of urine. n. A medicine with diuretic properties. [1913 Webster]… …   The Collaborative International Dictionary of English

  • diuretic — Medicine ► ADJECTIVE ▪ causing increased passing of urine. ► NOUN ▪ a diuretic drug. ORIGIN Greek diour tikos, from diourein urinate …   English terms dictionary

  • diuretic — [dī΄yo͞oret′ik] adj. [ME diuretik < LL diureticus < Gr diourētikos < diourein: see DIURESIS] increasing the excretion of urine n. a diuretic drug or other substance diuretically adv …   English World dictionary

  • diuretic — c.1400 (adj. and noun), from O.Fr. diuretique, from L.L. diureticus, from Gk. diouretikos prompting urine, from diourein urinate, from dia through (see DIA (Cf. dia )) + ourein urinate, from ouron (see URINE (Cf …   Etymology dictionary

  • Diuretic — This illustration shows where some types of diuretics act, and what they do. A diuretic provides a means of forced diuresis which elevates the rate of urination. There are several categories of diuretics. All diuretics increase the excretion of… …   Wikipedia

  • diuretic — [[t]da͟ɪ͟əre̱tɪk[/t]] diuretics N COUNT A diuretic is a substance which makes your body increase its production of waste fluids, with the result that you need to urinate more often than usual. [MEDICAL or TECHNICAL] Like caffeine, alcohol acts as …   English dictionary

  • diuretic — UK [ˌdaɪjʊˈretɪk] / US [ˌdaɪjəˈretɪk] noun [countable] Word forms diuretic : singular diuretic plural diuretics medical a substance that makes your body produce more urine Derived word: diuretic UK / US adjective Caffeine is known to have a… …   English dictionary

  • diuretic — adjective Etymology: Middle English duretik, diuretic, from Late Latin diureticus, from Greek diourētikos, from diourein to urinate, from dia + ourein to urinate more at urine Date: 14th century tending to increase the excretion of urine <… …   New Collegiate Dictionary

  • diuretic — 1. Promoting the excretion of urine. 2. An agent that increases the amount of urine excreted. cardiac d. a d. that acts by increasing function of the heart, and thereby improves renal perfusion. direct d. a d. whose primary …   Medical dictionary

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