Tamiflu is sort of old and saturated, well no im lying theres still a lot of market right now because of the obvious swine flu scare. I say saturated because canadian pharmacy brands have been spamming hundreds of domains, its going to be REALLY hard to try take Tamiflu pharma market if you're going to do email marketing. RXComissions is also selling it, i forgot the link for there sign up page but have alook. They bassically allow all traffic as long as you use a 301 redirect or a landing page.
If you're to go ahead and try market TamiFlu anyway, do it now. Before its OVER saturated. Also rxcash, i may be interested if you can PROVE your wholesells aren't counterfeit.