As said, it looks too much like a spam site. After looking at all of your links, it appears that it's merely a site to earn revenue by referring people to epharmacy to purchase Chantix, (and to earn revenue through google ads.)
Basically, it says to me, "click one of my links so I can make money." Content about Chantix seems to be minimal. Be honest - how do you think people are going to click onto your webpage? I'd think the most likely way is via a google search (or from the link in this thread.) I just did a google search for Chantix. The main site for Chantix has far more information on it. If I was clicking on various links after a google search and saw your site, what I said above is exactly the impression I'd have. I'd probably close that tab/window within seconds.
I'm not sure there's a heck of a lot that you can do to improve your site. Plus, the sponsored links in Google (when searching for chantix) show me $110 for 56 tabs. In fact, for about 5 minutes, I played the role of Chantix consumer for you... Quite frankly, I can't believe *anybody* purchased @$160 via the link from your site. Simply using Google to search for Chantix revealed several places that were FAR cheaper.
Ironically, when I looked at the price at drugstore.com, it was $106.99 - "save 8% ($9.49)"
That made me (in the role of consumer) wonder, "wtf, why is it so expensive at edrugstore (the link from your site). However, being a little above average consumer (I like to hope so, anyway), I explored further and noted that in general, it's dispensed either as a 1st month starter pack, or a month refill pack. Even on the e-Drugstore site, it says that you start with .5 mg, then .5 mg twice a day, and work up to 1mg twice a day until you stop. i.e. during the refill months, you'd be taking two 1mg tablets each day. But, the dosage on that page, next to the price, says 4x1mg - again, I'm wondering wtf? The site is contradicting itself. Am I getting more tablets there for more money? Regardless, I'd leave the edrugstore page as a result - I could find no way to resolve the confusion it created for me.
So, consider yourself lucky that anyone is purchasing through your site.