Keytruda is a prescription drug used for cancer treatment, specifically for the treatment of melanoma, non-small cell lung cancer, head and neck cancer, classical Hodgkin lymphoma, primary mediastinal large B-cell lymphoma, urothelial carcinoma, microsatellite instability-high cancer, and gastric cancer [1]. Keytruda is a type of immunotherapy drug that works by helping the immune system recognize and destroy cancer cells [3].

Like all drugs, Keytruda has side effects. The most common side effects of Keytruda are fatigue, nausea, itching, rash, decreased appetite, constipation, joint pain, and diarrhea [2]. However, some side effects of Keytruda can be serious and potentially life-threatening. These include lung problems, liver problems, intestinal problems, hormone gland problems, kidney problems, and skin reactions [2].

The severity and frequency of side effects can vary depending on the patient and the type of cancer being treated. Patients should talk to their doctor about the potential side effects of Keytruda and how to manage them. It is important for patients to report any side effects to their doctor immediately, as some side effects can be serious and require prompt medical attention [3].

In conclusion, Keytruda is a prescription drug used for cancer treatment, specifically for the treatment of various types of cancer. While it is generally well-tolerated, it can cause side effects, some of which can be serious and potentially life-threatening. Patients should talk to their doctor about the potential side effects of Keytruda and how to manage them. It is important for patients to report any side effects to their doctor immediately, as some side effects can be serious and require prompt medical attention.

Sources:
[1] https://www.drugpatentwatch.com/p/biologics/tradename/KEYTRUDA
[2] https://www.keytruda.com/side-effects/
[3] https://www.cancer.gov/about-cancer/treatment/types/immunotherapy/side-effects