Melphalan is used to treat some cancers and conditions where cells in the body rapidly divide and multiply. It is most commonly prescribed for conditions such as multiple myeloma and polycythaemia vera. Multiple myeloma is a cancer of the bone marrow. Polycythaemia vera is a bone marrow disease that leads to an abnormal increase in the number of red blood cells in the body. It makes your blood 'thicker' and can make you feel dizzy and short of breath.
This is a companion discussion topic for the original article at https://patient.info/medicine/melphalan-tablets