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Overview of side effects of chemotherapy for early-stage breast cancer

Taxanes

  • grade 2 to 4 neuropathy occurs in 15 to 20 percent, and grade 3 or 4 neuropathy in approximately 5 percent
    • Symptoms usually improve slowly after discontinuation of treatment (over weeks to months);
  • pneumonitis in approximately 5 percent
  • Hepatotoxicity: one-third of patients
  • Dose-related myalgias and arthralgia

Anthracyclines

  • cardiotoxicity
  • Malaise
  • Alopecia
  • Amenorrhea
  • Hematologic & oncologic: Leukopenia (≤75%; nadir: 10 to 14 days; recovery: by day 21), neutropenia (≤75%; nadir: 10 to 14 days; recovery: by day 21), anemia, thrombocytopenia

Cyclophosphamide

  • the most common toxicities are nausea, cytopenia, ovarian insufficiency, and fatigue. Late toxicities can include a small risk of secondary hematologic malignancies.