Comparing the varying cost of medications from one store to the next can give you the equivalent of an ice cream headache. There are even differences for the same drug with the same franchise in different towns.
The most disappointing thing that I found was the cost of buying drugs at hospital pharmacies. Public hospitals, being government owned have to charge the full PBS price on all scripts. As @Jane Elizabeth has pointed out, independent pharmacies can charge what they like--occasionally over the PBS price but frequently heaps below. Endone at the hospital here is $21.30, it's $7.20 at the chemist in town. Discount pharmacies make up any shortfalls by keeping you in the store for long enough that you will buy a heap of bits and pieces--whether you need them or not.
Chemist Warehouse here charged me $34.20 for my Femara script this week. The generic is nearly $10 cheaper. Since I have only just started taking it, I decided to wear the extra cost for a couple of months, mainly because I want to be sure that I can say any side effects are from the drug, and not due to some sort of different binder on the generic product. That's something I won't be able to afford to do long term, so I'm going to have to shop around to find a cheaper alternative--one way or another.
I've never heard of FBM. Maybe that's the brand the hospitals should be stocking since they are going to be charging premium prices anyway