Imatinib is a drug used to treat certain types of cancer. It is currently marketed by Novartis as Gleevec (USA) or Glivec (Europe/Australia) as its mesylate salt, imatinib mesilate (INN) (formerly called STI-571). It is used in treating chronic myelogenous leukemia (CML), gastrointestinal stromal tumors (GISTs) and other cancers.

Nelfinavir mesylate (Viracept, formally AG1343) is a potent and orally bioavailable human immunodeficiency virus HIV-1 protease inhibitor (Ki=2nM) and is being widely prescribed in combination with HIV reverse transcriptase inhibitors for the treatment of HIV infection.

Inhibits human immunodeficiency virus (HIV) protease important for viral replication;used in combination with nucleoside analogues, zidovudine, or zalcitabine in the treatment of acquired immunodeficiency syndrome (AIDS).