Viread drug name Tenofovir Disoproxil Fumarate Tablets, stopping the drug for two days will not cause serious consequences, but in order to ensure the effectiveness of the treatment, it is recommended to take it on a regular basis. According to the Tenofovir Disoproxil Fumarate Tablets drug insert, the drug is indicated for the treatment of HIV-1 infection, chronic hepatitis B in adults. Adverse drug reactions include lactic acidosis, severe hepatomegaly with steatosis, severe acute hepatitis B deterioration, renal injury, etc. It is contraindicated for drug allergy. Tenofovir disoproxil fumarate tablets are to be taken once a day, if the missed dose is not more than 18 hours from the usual dosing time, it should be replaced as soon as possible, if it has been more than 18 hours, there is no need to make up for it, and it is sufficient to take the normal dosage at the next dosing time. Regular use of the drug can ensure the effectiveness of antiviral therapy and reduce poor efficacy and drug resistance. Tenofovir disoproxil fumarate tablets, stopping the drug for two days will not cause serious consequences, but in order to ensure the efficacy of the drug is recommended to follow the doctor’s advice regular use of the drug.