Intecavir generally refers to entecavir. Eating a full meal at six in the evening and taking entecavir at eleven generally has no effect. It is generally used at least 2 hours before or after a meal, and there is a 5-hour gap between six and eleven, so it generally has no effect. Entecavir is generally used for the treatment of chronic adult hepatitis B with active viral replication, persistent elevation of serum alanine aminotransferase, or liver histology showing active lesions. Usual usage is to take it on an empty stomach (at least 2 hours before or after a meal) and there is a 5 hour gap between six and eleven, so it is usually not a problem and patients do not need to worry too much. It can be swallowed or dispersed with water and taken orally, or the dispersible tablets can be held in the mouth and sucked. Adverse reactions such as diarrhea, nausea, loose stools and delayed menstruation may occur after use. It is contraindicated in people who are allergic to entecavir or any of the ingredients in the preparation. If you need to use this medication, you need to use it under the supervision of a doctor.