The fastest way to cure hyponatremia is through intravenous fluids also known as IV fluids that contain a high concentration of sodium or hypertonic saline.
The sodium or hypertonic saline should be administered under close medical supervision to raise the sodium levels slowly and prevent complications.
The treatment for hyponatremia will also depend on how severe the hyponatremia is and whether any symptoms are present or not.
If you have mild to moderate hyponatremia, treatment might involve restricting your fluid intake, adjusting any medications you take and sometimes increasing your sodium intake through diet or taking salt tablets.
Hospitalization and intravenous fluids are often necessary for severe, symptomatic hyponatremia.
The process of raising your sodium levels in severe cases requires careful monitoring to prevent any complications like rapid changes in your brain sodium which can lead to brain damage or seizures.
Treating the condition that lead to hyponatremia is also crucial and can involve addressing any medical conditions and adjusting medications or modifying any fluid intake.
In some cases you may need medications such as vaptans that block vasopressin receptors and also help your kidneys excrete water and may also be used in treating hyonatremia, particularly in those cases of the syndrome of inappropriate antidiuretic hormone secretion.