Elvitegravir is an emerging integrase inhibitor. When elvitegravir is taken with a low dose of the drug ritonavir (Norvir), the concentration of elvitegravir in the blood rises and remains elevated for about a day. The manufacturer of elvitegravir, Gilead Sciences, is also developing another pharmacokinetic (PK) booster called cobicistat, which will be co-formulated with elvitegravir in the fut...
