What is the most important information I need to be aware of while taking Tolvamac?
Tolvamac may cause the level of sodium in your blood to increase too quickly. This quick increase in sodium levels [osmotic demyelination syndrome (ODS)] may cause serious nerve damage, which can further cause coma and even death. The symptoms of ODS could be trouble in speaking, trouble in swallowing or a feeling of food or liquid getting stuck while swallowing, drowsiness, confusion, mood changes, fits, trouble controlling body movement (involuntary movement) and weakness in muscles of the arms and legs.