The new NHS Drug Tariff for March 2022 is available.
Prices are in pennies for 28 tablets.
Liothyronine 20microgram tablets 7190 M
Liothyronine 10microgram tablets 14800 C Morningside Healthcare Ltd
Liothyronine 5microgram tablets 9947 A
drugtariff.nhsbsa.nhs.uk/#/...
I could not find Hard Capsules that are now available from Roma.
This is out of date - more recent information has been posted.