Velcade 3.5mg injection is a chemotherapeutic medication that belongs to the class of drugs called Proteasome inhibitors. It contains the active compound Velcade 3.5mg injection. It is used to treat multiple myeloma and mantle cell lymphoma. This medication is concomitantly used with other chemotherapy medicines like pegylated liposomal doxorubicin, rituximab, cyclophosphamide, doxorubicin, dexamethasone, prednisolone or thalidomide for patients who have not started treatment and are unsuccessful or ineligible for blood stem cell transplant treatment.