Imatinib 400 Tablet 10s is a tyrosine kinase inhibitor used to treat certain cancers It works by inhibiting tyrosine kinases which are proteins that contribute to the growth of cancer cells Taking Imatinib with or without food is acceptable but it is recommended to take it at the same time every day for optimal results Side effects of this treatment may include swelling fatigue rash fever hair loss insomnia joint and muscle pain weight gain night sweats itching gastrointestinal toxicity blood cell abnormalities liver toxicity and renal toxicity Severe or persistent symptoms should be reported to a healthcare provider Patients with a high tumor burden may be at risk for tumor lysis syndrome and should be monitored and given preventative measures Individuals experiencing severe or persistent musculoskeletal pain or cramps should seek medical attention If a dose is missed patients should take it as soon as they remember but they should not double the dose if the next scheduled dose is approaching It is advisable to consult with a doctor for guidance on managing missed doses effectively