Conivaptan is a prescription medication that is used to to treat a medical condition called hyponatremia, a disorder that causes the sodium levels in the blood to become too low. Some of the most common side effects associated with the use of this drug include headaches, insomnia, and gastrointestinal disturbances. More serious conivaptan side effects may include irregular heartbeat, blood in the urine, or allergic reactions. Any specific questions or concerns about the use of conivaptan in an individual situation should be discussed with a doctor or other medical professional.
Hyponatremia is a medical term used for a type of electrolyte imbalance that causes decreased levels of sodium in the blood. Symptoms of this condition may include fatigue, muscle weakness, and seizures. Without treatment, hyponatremia can lead to a loss of consciousness or even death. Conivaptan may be prescribed alone or in combination with other treatment methods to treat this disorder.
Most people are able to use conivaptan without experiencing any particularly bothersome side effects, although any new symptoms that develop after beginning treatment with this medication should be reported to a doctor for further evaluation. Insomnia may occur as a result of using this drug, but this problem normally lessens as the body adjusts to the drug. Mild to moderate headaches are considered normal, although sudden or severe headaches may indicate severe complications such as an aneurysm and should be reported to a doctor right away.
Mild to moderate gastrointestinal disturbances such as nausea or vomiting may occur when taking conivaptan. Constipation, diarrhea, or abdominal cramping may also occur. Black or bloody stools or vomit that resembles coffee grounds should prompt immediate medical attention to rule out the development of any severe complications. Sudden or severe abdominal pain, especially if accompanied by a fever, should be treated as a medical emergency.
Less common but potentially serious side effects of conivaptan may include changes in heart rate, the appearance of blood in the urine, or an extreme or unquenchable thirst. A type of fungal infection known as thrush may develop, causing white patches to appear in the mouth. Allergic reactions can range from the development of a mild skin rash to potentially fatal symptoms such as facial swelling or difficulty breathing. Other side effects are also possible, so the patient should consult a member of the medical staff with any questions relating to possible side effects of this medication.