Side effects occur several days after receiving bevacizumab
May 11, 2023
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
The time at which side effects occur after administration of bevacizumab injection varies depending on the patient's physical condition and disease progression. Generally, patients may experience reactions 2 to 4 weeks after receiving bevacizumab injection. However, for patients with more severe conditions, this period may be slightly longer, around 8 weeks. It is recommended to develop an appropriate treatment plan based on each patient's specific situation.
The time at which side effects appear after administration of bevacizumab injection varies depending on the patient's physical condition and disease progression. Generally, the body may show reactions within 2–4 weeks after receiving bevacizumab injection. However, for patients with more severe conditions, this period may be slightly longer, typically around 8 weeks. The details are as follows:
1. 2–4 weeks
Bevacizumab injection is an immunotherapy agent whose mechanism of action involves inhibiting certain molecules in the immune system to achieve therapeutic effects. In some patients who have a relatively sensitive immune response and milder disease, the body's reaction may be more pronounced, leading to noticeable symptoms within 2–4 weeks after injection.
2. Around 8 weeks
In other patients, the immune system’s response may take longer, thereby prolonging the drug's onset of effect. Additionally, if the patient has a severe condition accompanied by chronic diseases or other health issues, the metabolism and absorption of the drug in the body may be affected, further delaying the response time—typically to around 8 weeks.
It is recommended to consider these factors comprehensively and develop an appropriate treatment plan tailored to each individual patient’s condition.
