Melphalan is also effective for the treatment of a proportion of patients suffering from polycythemia vera. This agent is not recommended to be used by those patients who have previously suffered hypersensitivity reactions to it. The price of melphalan cost is around 2290 INR for a supply of 25 Tablets. This injection should only be used for the treatment of patients who cannot take the melphalan by mouth. It works in order to stop or resist the growth of cancerous cells in the body. The injection should be slowly injected intravenously (into a vein) over 15-30 minutes by a healthcare professional.