Hepatitis B antiviral drugs are generally recommended to be taken half an hour after meals, while the exact dosage should be decided according to the severity of the disease. Hepatitis B antiviral drugs have a relatively large impact on gastric function, so it is not recommended to take the drug on an empty stomach, because taking the drug on an empty stomach may stimulate the gastric mucosa, which may lead to gastrointestinal tract digestion problems. Choosing to take the drug after meals can neutralize the drug properties and reduce the damage and irritation to the gastric mucosa. As for the dosage of hepatitis B virus drugs, it needs to be decided according to the development of the disease and the severity of the disease. At the initial stage, it is usually recommended to take a small dosage, and then go to the hospital for examination after a period of time, the doctor will adjust the dosage appropriately according to the patient’s recovery situation, if the effect is good, you can reduce the dosage, and if the effect is relatively poor, you can increase the dosage appropriately. There are many types of hepatitis B antiviral drugs, and it is recommended to choose the most appropriate drug treatment under the guidance of a professional physician.