Chemotherapy is a treatment method that uses chemical drugs to destroy cancer cells. It is widely used in oncology, as well as in the treatment of certain other conditions such as autoimmune diseases and some severe infections. Chemotherapy may be used as a standalone treatment or in combination with other modalities, including surgery, radiotherapy, and immunotherapy.
How does chemotherapy work?
Chemotherapy drugs primarily target rapidly dividing cells by damaging their DNA or disrupting the mechanisms of cell division. Cancer cells typically divide more quickly than most normal cells and are therefore particularly sensitive to these agents. However, chemotherapy may also affect other rapidly dividing healthy cells, such as those in the bone marrow, hair follicles, and mucous membranes, which can lead to side effects.
Main stages of chemotherapy treatment
Selection of chemotherapy agents. The oncologist selects chemotherapy drugs based on the type of cancer, disease stage, and individual patient characteristics. Treatment may involve a single agent or a combination of several drugs used in specific regimens.
Determination of dosage and treatment schedule. Dosage and frequency depend on the patient’s general condition, tumor type, and response to therapy. Chemotherapy is commonly administered in cycles with rest periods to allow the body to recover.
Administration of chemotherapy drugs. Chemotherapy may be administered intravenously, orally (tablets or capsules), or via intramuscular or subcutaneous injections. In some cases, a central venous catheter or port system may be implanted to facilitate repeated drug administration.
Monitoring and treatment adjustment. During therapy, regular blood tests and diagnostic assessments are performed to evaluate treatment effectiveness and monitor potential side effects. Based on these results, the physician may adjust drug dosages or modify the treatment regimen.
Indications for chemotherapy
- Cancer. Chemotherapy is used to treat a wide range of malignancies, including breast cancer, lung cancer, colorectal cancer, ovarian cancer, and others. It remains a cornerstone of treatment for many cancer types.
- Autoimmune diseases. In selected cases, chemotherapy agents are used to suppress abnormal immune activity in conditions such as systemic lupus erythematosus and vasculitis.
- Severe infectious diseases. Certain chemotherapeutic agents may be used in the treatment of severe infections, including those associated with human immunodeficiency virus (HIV) or hepatitis, within specialized treatment protocols.
- Preparation for organ transplantation. Chemotherapy may be administered to suppress the immune system prior to organ transplantation in order to reduce the risk of graft rejection.
Possible side effects of chemotherapy
- Fatigue. One of the most common side effects, resulting from bone marrow suppression and general systemic impact.
- Nausea and vomiting. Often associated with the effect of chemotherapy drugs on the gastrointestinal tract.
- Hair loss. Since chemotherapy affects rapidly dividing cells, hair loss may occur; in most cases, hair regrows after completion of treatment.
- Suppressed immune function. Reduced white blood cell counts increase susceptibility to infections.
- Gastrointestinal complications. Inflammation or ulceration of the oral cavity, esophagus, or stomach mucosa may develop.
Advantages of chemotherapy in Belarus
In Belarus, chemotherapy is provided in leading medical institutions equipped with modern diagnostic and treatment technologies. Highly qualified oncologists apply evidence-based protocols and advanced therapeutic approaches, significantly improving treatment outcomes. Affordable treatment costs combined with a high standard of medical care make Belarus an attractive destination for international patients requiring chemotherapy.
