Is there a treatment for hyponatremia (low sodium)? Can medicine or diet cause it?
- Q: Is there a treatment for hyponatremia (low sodium)? Can medicine or diet cause it?
- A: Sodium is an important electrolyte in the body. It helps control blood pressure and fluid balance and it supports the work of nerves and muscles. When sodium levels in the blood are too low (hyponatremia), excess fluid enters the cells and swelling occurs. There are many potential causes of hyponatremia, including excessive water drinking (especially during exercise); hormonal changes (such as an underactive thyroid or hypothyroidism); chronic, severe vomiting or diarrhea; dehydration; kidney or liver problems; and congestive heart failure. Certain medications including water pills (or diuretics), antidepressants, and pain medications can increase the amount a person urinates or sweats, causing them to lose more sodium than normal. A low-sodium, high-water diet can also affect sodium levels in the blood. Treatment for hyponatremia depends on the cause. For example, if hyponatremia is a result of diet, diuretics or excessive water consumption, a reduction in fluids is generally recommended. Please consult with your healthcare provider for more information. Michelle McDermott, PharmD
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