CAMPTO, also known by its generic name Irinotecan, is a chemotherapy medication used in the treatment of various cancers, including colorectal cancer and small cell lung cancer. It belongs to a class of drugs known as topoisomerase inhibitors, which work by interfering with the DNA replication process in cancer cells, thereby inhibiting their growth and proliferation. CAMPTO is typically administered intravenously and is often used in combination with other chemotherapy agents to enhance its efficacy. Like all chemotherapy drugs, CAMPTO can cause a range of side effects, which may include nausea, vomiting, diarrhea, and a decrease in blood cell counts, among others. Its use and dosage must be carefully managed by a healthcare professional to balance its therapeutic benefits against potential side effects.