WaveData has over 10 years of Tolbutamide Tabs 500mg 28 pricing data. The graph below shows the Average UK Price, Concession Price, and English Drug Tariff price for this product.
The average UK price for this product began to rise in December 2011, and rose from under £5.00 to £21.91. Since then, the average UK price has stayed at around £25.00 until October 2014 when it began to decline, falling to £2.87 in August 2018. Then the price stayed at the £3 mark until April 2019 when it rose to £13.28.
The English Drug Tariff price has by and large followed suit, however it was late to rise both in 2011/12 and in 2019/20.
Concession prices were introduced 2012 and 2019 to try and keep try and keep this product profitable for chemists.