Imatikast 400 mg Tablets Imatikast 400 mg is an oral targeted cancer medicine containing imatinib. It is designed to block specific abnormal enzymes that contribute to uncontrolled growth of certain cancer cells. By interfering with these growth signals, imatinib helps control the progression of several blood cancers and certain solid tumors. It is used under specialist supervision, with the exact treatment depending on the patient's diagnosis.