Amiloride Tabs 5mg 28 is a product where the prices are high at the moment varying from a May maximum of £32.50 and minimum £23.75 (which may be short dated).
Prices have also been highly erratic since 2014. Before this prices for a pack were generally less than £1 in the UK, but since then prices have spiked three times in March 2014, Dec 2017 and March 2020.
At the same time the it has been a struggle for the drug tariff and concession prices to stay at levels which are profitable for pharmacies.
The long term data comes from https://www.bppi.co.uk and the current prices from https://www.wavedata.net