HIV drugs occasionally missed three days generally will not have an effect, but if continuous missed or not on time, may re-cause clinical symptoms, it is recommended to take the drug under the guidance of a doctor. If the HIV drug occasionally missed three days generally does not have a great impact, do not have to be overly nervous and anxious, just need to continue to develop a good habit of taking the drug can be. If you miss a dose or don’t take it on time, viral replication may become active, thus affecting the therapeutic effect, and the longer you miss a dose, the greater the resistance to the drug, or even re-causing clinical symptoms. The treatment of AIDS needs to take drugs regularly under the guidance of specialists, do not miss a dose or stop taking drugs. If the patient misses the medication and has an adverse reaction, he should go to the hospital in time to find out the cause of the disease and get timely treatment.