Tolvasca (Tolvaptan) is a prescription medication used to treat hyponatremia (low sodium levels). It works by blocking the action of a hormone that causes the body to retain water and salt, helping to restore normal sodium levels in the body. Tolvasca is available in tablet form and should be taken with food for best results. This medication is available for purchase online at our website with a valid prescription from your doctor. Tolvasca is a safe and effective treatment for hyponatremia symptoms.