Advice
Evidence: economic issues
Cost
Metformin is available as standard-release and modified-release tablets. Modified-release tablets are sometimes prescribed in an attempt to reduce the gastrointestinal adverse effects of metformin.
Drug and usual dosage a |
Annual cost b |
Metformin 500 mg 3 times a day |
£30.03 |
Metformin 1000 mg twice a day |
£40.04 |
Metformin modified-release 750 mg twice a day |
£83.20 |
Co-cyprindiol 1 daily for 21 days each month |
£20.67 |
a The dosages shown are taken from the relevant summary of product characteristics, but do not represent the full range that can be used nor do they imply therapeutic equivalence. b Costs taken from Drug Tariff January 2013, based on 13×28-day months per year. |