Kinase inhibitors are a type of targeted therapy that work by blocking the action of specific enzymes called kinases. Kinases play a key role in cell signaling pathways that regulate cell growth, division, and survival. By inhibiting these enzymes, kinase inhibitors can stop or slow down the growth of cancer cells. There are many different types of kinase inhibitors, each targeting a specific kinase or group of kinases involved in cancer growth. These drugs are used in the treatment of various types of cancer, including leukemia, lung cancer, and breast cancer. Kinase inhibitors can be administered orally or intravenously, and they can have fewer side effects than traditional chemotherapy drugs. However, they can still cause side effects such as skin rash, diarrhea, and liver damage. Overall, kinase inhibitors are an important class of cancer drugs that have shown promise in improving outcomes for patients with certain types of cancer. Ongoing research is focused on developing new and more effective kinase inhibitors, as well as understanding how best to use them in combination with other therapies.