Conivaptan

Conivaptan is a prescription medication used to help increase low sodium levels in the blood. Conivaptan belongs to a group of drugs called vasopressin antagonists. These raise salt levels in the blood by removing extra body water as urine. Removing fluid from the body helps to increase the level of sodium in the blood.

This medication comes in an injectable form to be given directly into a vein (IV) by a healthcare professional.  

Common side effects of conivaptan include reactions at site of infusion, headache, constipation, diarrhea, vomiting, and thirst.

Conivaptan is a prescription medication used to help increase low sodium levels in the blood in patients with normal or increased amounts of body fluid. 

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.

Serious side effects have been reported with conivaptan. See the "Drug Precautions" section.

Common side effects of conivaptan include the following:

• reactions at site of infusion
• constipation
• diarrhea
• dry mouth
• headache
• nausea
• thirst
• vomiting
• trouble sleeping
• fever
• low potassium
• orthostatic hypotension (low blood pressure when you stand up from sitting or lying down)

This is not a complete list of conivaptan side effects. Ask your doctor or pharmacist for more information.

Tell your doctor if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.