It takes a brave decision to tinker with a publication that is used every day by thousands of doctors, pharmacists and nurses, whose format has been reproduced by other countries and which has been acknowledged as “perhaps the best of its kind in the world”.¹ From September 2015, BNF 70 looks and feels distinctly different from BNF 69 following an overhaul of its structure, layout and format. Previous editions evolved from a paper-based publishing model that had to adapt to the world of online publications, interactive content and digital apps. BNF 70 has been designed for …