Inclusion criteria:
Patients with breast cancer who are candidate for chemotherapy with taxanes
Exclusion criteria:
History of neuropathy
Use of medications that can cause neuropathy such as statins, colchicine, zidovudine, penicillamine, platinum derivatives (cisplatin, oxaliplatin), and vinca alkaloids
History of fibromyalgia, rheumatoid arthritis, osteoarthritis, hypothyroidism, sleep apnea, autoimmune diseases, diabetes mellitus, heart failure, myocardial infarction, uncontrolled hypertension, unstable angina, stroke, and seizure in the previous year
History of allergy to melatonin
Alcohol intake
Active infection (such as COVID-19 or other respiratory infections)
History of prior chemotherapy
Severe kidney or liver failure
Presence of other malignancies
Prediction of patient nonadherence