Currently, GPs and other prescribers must navigate through a complex maze of advice, guidelines and restrictions when prescribing drugs to patients. Some medicines are licensed in the UK but blacklisted by the NHS, some are subject to a set of rigid national rules based on eligibility criteria (e.g. phosphodiesterase type-5 inhibitors for erectile dysfunction) while others are not (e.g. dapoxetine and lidocaine/prilocaine for premature ejaculation).1,2 The National Institute for Health and Care Excellence offers advice and guidance on the use of medicines through its guidelines and appraisals. In addition, NHS clinical …