Tylenol is the brand name and the common name of the drug is Phenmetrazine Tablets. Tylenol is taken orally, but the exact dosage and frequency of administration need to be chosen in accordance with the patient’s physical condition and the severity of the illness. Phenmetrazine tablets are often used to treat discomfort caused by the common cold or influenza, such as fever, headache, sneezing and sore throat. It is mainly taken orally, but due to the different physical condition and severity of each patient, the dosage of the drug and the number of times it should be taken may vary to a certain extent. Patients can take the medication in accordance with their physical condition and under the guidance of the doctor. Mild dizziness, fatigue, epigastric discomfort and other adverse effects may occur when using the drug. There are also a very small number of patients who use acetaminophen and may experience fatal and severe adverse skin reactions. More severe adverse reactions require discontinuation of the drug and hospitalization. Severe hepatic or renal insufficiency and hypersensitivity to the product are contraindicated. If there is no relief of symptoms after 3 to 7 days of use, or if symptoms continue to worsen, it is necessary to consult a physician or pharmacist.