Results: Of the participants, 19.5% had good knowledge of the efficacy of ARV drugs, 43.2% had right knowledge of antiretroviral drug classes, 99.4% gave right advices to new HIV-infected patients, 99% advices HIV-positive patients who abandoned treatment should receive treatment again, 100% agreed with the harmful effects of stopping their ART regimen and 83.9% did not forget to take the ARV drugs, only a small minority of the participants (18.7%) knew that if they forgot to take their medication that they should take double dose in the next day.