What, no one else here doing pharmacy?
Pharmacyescrow.com recently increased their affiliate commissions to 25% so it's worth checking out. It's a great program that has been around for many years and they have the largest inventory of different drugs. Before their aff commission was 10% which was not really worth the effort when everyone else is paying 25%+.
I'm still mostly using 4rx, but really hate their lack of proper tracking software and support. The ease of use, good prices and commissions make up for that though