Nilonix 200 mg (Nilotinib) Capsules 120sNilonix 200 mg Capsules contain nilotinib, a tyrosine kinase inhibitor (TKI) used in the treatment of chronic myeloid leukemia (CML). It is designed to target and block the abnormal BCR ABL protein that causes uncontrolled growth of leukemia cells. What is Nilonix 200 mg Capsule? Nilonix (nilotinib) is an oral medication used for patients diagnosed with Philadelphia chromosome positive (Ph+) CML, including those resistant or intolerant to prior