Because Belzutifan's mechanism of action involves regulating oxygen-sensing pathways in the tumor microenvironment, it may have a wide-ranging impact on normal physiological functions. Therefore, while exerting its therapeutic effects, it may also cause a series of side effects.
Serious Side Effects of Belzutifan
If any of the following side effects occur while taking Belzutifan, seek immediate medical attention:
Common Side Effects: Blurred vision, changes in vision, chest tightness, confusion, cough, difficulty swallowing, dizziness, rapid heartbeat, headache, hives, itching, rash, nervousness, pale skin, throbbing sensation in the ear, swelling of the eyelids or periocular area, face, lips, or tongue, flashes of light or bright spots in vision, floaters or partial visual field obstruction, difficulty breathing, abnormal bleeding or bruising, unusual fatigue or weakness.
Other side effects of bezotiva
If any of the following side effects persist, cause discomfort, or you have any questions, please consult a healthcare professional:
Common side effects:
Body aches or pains, chills, constipation, difficulty moving, ear fullness, fever, loss of voice, muscle aches, cramps, pain or stiffness, nausea, joint pain, sneezing, sore throat, abdominal pain, nasal congestion or runny nose, joint swelling, weight gain.



