Several compounding pharmacies in Brisbane can make this up for you, a doctor's script needs to stipulate the strength and quantity.
Prices can vary so ring around. I found the Compounding Lab at Albion to be competively priced.
Thanks for the info. I went out and bought the eye drops and apply liberally but cant say I have noticed much change in my well-being. I am going to see a doctor soon so I will run this Ketotifen past him. I tend to find compounding pharmacies not that cheap compared to the cost of the raw ingredients