Invasive ductal carcinoma can be treated by chemotherapy, and the commonly used drugs for chemotherapy include anthracyclines and paclitaxel. 1. Anthracycline drugs: commonly used anthracycline drugs include pilocarpine injection (powder), doxorubicin liposome injection, epirubicin injection, etc. After using these drugs, patients may have cardiotoxicity, gastrointestinal tract reaction, bone marrow inhibition and other adverse reactions. 2. Paclitaxel drugs: commonly used paclitaxel drugs include docetaxel injection, paclitaxel injection, etc. After using the drug, patients may experience skin erythema, allergy, myelosuppression and other adverse reactions. 3. Other: patients can also use cyclophosphamide injection, platinum and other drugs under the guidance of the doctor for treatment, and can also take capecitabine orally for treatment. Specific medication should also be selected under the guidance of the doctor according to their own situation, patients should not use, stop or change medication without authorization.