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Hyponatremia (Low Blood Sodium) »
Hyponatremia refers to a lower-than-normal level of sodium in the blood. Sodium is essential for many body functions including the maintenance of fluid balance, regulation of blood pressure, and normal function of the nervous system. Hyponatremia has sometimes been referred to as "water intoxication," especially when it is due to the consumption of excess water, for example during strenuous exercise, without adequate replacement of sodium.
Sodium is the major positively charged ion (cation) in the fluid outside of cells of the body. The chemical notation for sodium is Na. When combined with chloride (Cl), the resulting substance is table salt (NaCl).
The normal blood sodium level is 135 - 145 milliEquivalents/liter (mEq/L), or in international units, 135 - 145 millimoles/liter (mmol/L). Results may vary slightly among different laboratories.
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It is unlikely that you will miss a dose of this medication since it is usually given while you are in a hospital.
Tell your doctor right away if you think you have received too much of this medicine.
Symptoms of an overdose may include light-headedness, fainting, or extreme thirst.
Avoid drinking more fluids than your doctor recommends while you are receiving treatment with conivaptan.
There may be other drugs that can affect conivaptan. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
Your pharmacist has information about conivaptan written for health professionals that you may read.
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