Glossary term:

Furosemide (Frusemide)

A drug belonging to a class known as diuretics, meaning that they cause the person taking them to pass more urine than usual. Diuretics are used in the treatment of heart failure or high blood pressure. They also reduce the rate at which cerebrospinal fluid is formed by the choroid plexus and can sometimes relieve symptoms of Chiari malformation by reducing the “pressure from above”, which may tend to push the herniated cerebellar tonsils into the foramen magnum. Another drug which has similar effects is acetazolamide but many people do not tolerate some of the side effects of this preparation.