Keytruda Injection is given as an infusion into the vein by a qualified medical professional. Your doctor will decide what dose is necessary and how often you need to take it. This will depend on what you are being treated for and may change from time to time. You should take it exactly as your doctor has advised. Taking it in the wrong way or taking too much can cause very serious side effects. It may take several weeks or months for you to see or feel the benefits but do not stop taking it unless your doctor tells you to.
Some common side effects of this medicine include rash, fatigue, fever, nausea and muscle pain. Some serious side effects which may occur during infusion include chills or shaking, itching, rash, flushing, difficulty breathing and dizziness. Hence, your doctor will check you timely after infusion for allergic reaction.
Before taking it, tell your doctor if you have lung disease, liver, or kidney problems or are taking any medicines to treat infections. Many other medicines can affect, or be affected by, this medicine so let your healthcare team know all medications you are using. This medicine is not recommended during pregnancy or while breastfeeding. The use of effective contraception by both males and females during treatment is important to avoid pregnancy.