Chemotherapy is a drug treatment for cancer that uses chemicals to destroy cancer cells, primarily by targeting their rapid cell division. Since this action is not exclusively selective, it also affects certain rapidly renewing healthy cells (hair follicles, digestive tract mucosa, bone marrow), which explains most of the side effects observed. The drugs are administered according to specific protocols—intravenously, orally, or by other routes—determined by the type of cancer, its stage, and the patient’s profile. Several classes of molecules exist (alkylating agents, antimetabolites, topoisomerase inhibitors, antimitotics), each of which interferes with cell division through a distinct mechanism.
Chemotherapy is generally administered in cycles, alternating between treatment phases and rest phases to allow the body to recover—the total duration ranging from a few weeks to several months depending on the personalized oncological protocol. It can be used alone or in combination with surgery and radiation therapy, based on a multidisciplinary decision made by the oncology team depending on the type of cancer, its stage, and the patient’s overall health.
Side effects vary considerably depending on the treatment regimen and individual sensitivity, but the most common include:
Any complementary approach aimed at alleviating these side effects—whether herbal medicine, acupuncture, or meditation—must be discussed with the oncology team before being introduced. Certain herbs and dietary supplements can significantly interfere with the effectiveness of chemotherapy treatments or with their metabolism in the liver, and their unmonitored use may compromise the treatment’s chances of success—there is no evidence that a natural product can replace or enhance anticancer treatment, and any claim to that effect should be viewed with extreme caution.
Chemotherapy significantly affects energy levels, appetite, and the ability to perform daily tasks. Adjusting your daily routine during treatment—by planning less strenuous activities, seeking support from loved ones, and strictly following the healthcare team’s recommendations—makes it easier to get through this challenging time. From a nutritional standpoint, a tailored dietary plan, approved by the oncologist, helps support the body in coping with nausea and fatigue —some treatment protocols include vitamin C or probiotic supplementation, but only when prescribed or explicitly approved by the oncology team, as certain high-dose antioxidants could theoretically interfere with certain mechanisms of action of chemotherapy.
For financial management, social workers specializing in oncology can provide information on available assistance (health insurance, assistance programs, patient relief funds). Research continues to advance toward more selective targeted therapies and personalized approaches based on each tumor’s genetic profile, gradually reducing side effects while improving therapeutic efficacy. Any questions about treatment, its effects, or the complementary approaches being considered should be directed first to the referring oncology team.
