“…The most successful drugs in plasma-cell myeloma are cyclophosphamide (Matthias, Misiewicz and tary system has proved extremely resistant to therapy, although it is claimed that successful palliation may be achieved in 20-30% with 5-fluorouracil or related compounds (Wilson, 1960;Ansfield and Curreri, 1963 (Moore, 1958;Sears, 1961), methotrexate (Wright, Cobb, Golomb, Gumport, Lyall and Safadi, 1959) or 5-fluorouracil (Ivy, 1962;Dao and Grinberg, 1963) (Balme, 1954;Crile, 1957;Thomas, 1957 (Peters, 1950;Peters and Middlemiss, 1958).…”