Snapshot A 55-year-old man presents to the HIV clinic for a follow-up visit. He was recently diagnosed with HIV and was started on first-line highly active antiretroviral therapy (HAART). However, his CD4 count at his last visit remained low. Drug resistance analysis of the HIV strain was sent at that time and revealed 3 major mutations causing the virus to be resistant to many first-line agents. The analysis also revealed that the HIV strain was CCR5-tropic. The patient was started on maraviroc. Introduction Drugs login to view 4 more bullets Clinical use login to view 2 more bullets Enfuvirtide Mechanism of action login to view 1 more bullet Adverse effects login to view 3 more bullets Maraviroc Mechanism of action login to view 2 more bullets Clinical use login to view 1 more bullet Adverse effects login to view 3 more bullets