Not bad; Elviteq would work as long as the brand name for standalone Elvitegravir is not something so close as to create an opportunity for dispensing the wrong Rx.
Maybe you should go into the brand-naming business. :)
Incidentally it's totally amazing the number of domain names that have been taken. I was recently doing some brainstorming with my sons to decide on a domain name, and it's mind-boggling what has already been grabbed. Add to that some domain-name holders have an inflated idea of what their domains might be worth and want amounts the order of $50k for 2nd- or 3rd-tier names.
There was a story about a firm that bought a lot of the words in the dictionary early on but then neglected to renew its rights to them. If true, that was a several hundred million dollar boo-boo.