The hot topics
Every time a product is de-listed from the PBS there is a price rise. That is an historical fact.
The reason is, there will be a lower sales number and so to retain profit the price is raised - simple economics of scale. This applies whether the product is S3, S4 or S8.
Many years ago there was a raft of de-listing and guess what? ALL products had an increased w/sale price. The smart pharmacist bought a bulk load at the old PBS w/sale price and was able to gradually increase the retail price over several months. You can bet the smart operators