Docetaxel chemotherapy dosage is calculated according to the body surface area, according to the body surface area to calculate the total amount of drugs needed divided by the amount of a single drug can be calculated how many Docetaxel, calculated if you need five is possible, the use of the drug needs to be calculated and evaluated by a professional physician, should be used in strict compliance with medical advice, in order to avoid the occurrence of serious consequences. Docetaxel is a widely used antitumor drug in clinic, mainly for the treatment of advanced breast cancer, ovarian cancer, non-small cell lung cancer, for head and neck cancer, small cell lung cancer; it also has a certain degree of efficacy for gastric cancer, pancreatic cancer, melanoma and so on. The number of chemotherapy treatments should be decided by professional physicians according to the patient’s condition. Adverse effects of chemotherapy with this drug include hair loss, weakness, mucositis, arthralgia and myalgia, hypotension and injection site reactions. The drug is contraindicated in pregnant women. The drug is commonly packaged as 5 ml:20 mg a piece, administered intravenously by drip, 75 mg/m2 is used domestically for calculated administration, and 60 to 75 mg/m2 is used in combination, administered intravenously for 1 hour and repeated every 3 weeks. After calculating the surface area of the body it is possible to calculate how many docetaxel are needed based on the total amount of the drug. The application of this drug requires strict compliance with medical advice to avoid serious adverse reactions.