Antidiuretic
Antidiuretic substances play a critical role in the regulation of bodily fluids. As the name suggests, these agents counteract diuresis, the process that leads to increased production of urine. An antidiuretic is an agent or drug that, when introduced to an organism, assists in maintaining water balance by reducing urination.[1] This contrasts with diuretics, which promote the production and elimination of urine.[2]
Pharmacological Role[edit | edit source]
The primary function of antidiuretics is to help the body conserve water, ensuring that only the necessary amount of fluid is expelled. They achieve this by decreasing the volume of urine produced by the kidneys.
Medical Uses[edit | edit source]
Antidiuretics are particularly valuable in treating certain medical conditions that result in excessive urine production. The hallmark indication for antidiuretic use is diabetes insipidus (DI), a disorder characterized by intense thirst and the excretion of large amounts of diluted urine.
Principal Agents[edit | edit source]
Antidiuretic agents can be classified into distinct categories based on their origin and mechanism of action:
- Antidiuretic hormones: These are hormones that regulate water balance in the body.
- ADH/Vasopressin - A primary hormone responsible for reducing water excretion in the urine.
- Desmopressin - A synthetic replacement for vasopressin, often used in treating central diabetes insipidus.
- Lypressin - Another synthetic variant of vasopressin.
- Terlipressin - A synthetic analogue of vasopressin, frequently utilized to treat esophageal variceal bleeding and hepatorenal syndrome.
- Miscellaneous: Other drugs with antidiuretic properties include:
- Chlorpropamide - Primarily an antidiabetic agent, it can increase ADH secretion.
- Carbamazepine - An anticonvulsant that can lead to increased ADH secretion.
Related Concepts[edit | edit source]
- Diuretic - Agents that increase urine production.
- Electrolyte - Minerals that maintain the body's ionic balance.
- Water-electrolyte imbalance - Conditions arising due to an imbalance in bodily fluids and minerals.
See Also[edit | edit source]
References[edit | edit source]
- ↑ Antidiuretic+Agents at the US National Library of Medicine Medical Subject Headings (MeSH)
- ↑ "antidiuretic" at Dorland's Medical Dictionary
External Resources[edit | edit source]
- LIVESTRONG.com - Comprehensive resource on topics related to antidiuretics.
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