Just seen the following on my Facebook...
There is currently an interruption to the supply of Fixapost eye drops. The company Thea have informed us that Fixapost should be available again at the end of October, although there may be a short delay while the supply is rolled out within the UK.
If you use Fixapost drops and are having difficulties getting it from your pharmacist, please contact your eye specialist so they can prescribe you a different drop during this time.