In the UK, the Medicines and Healthcare Products Regulatory Agency approves drugs for use, though the evaluation is done by the European Medicines Agency, an agency of the European Union based in London. Normally an approval in the UK and other European countries comes later than one in the USA. Then it is the National Institute for Health and Care Excellence (NICE), for England and Wales, who decides if and how the National Health Service (NHS) will allow (in the sense of paying for) their use. The British National Formulary is the core guide for pharmacists and clinicians.
Who is the core guide? Who is responsible for approving drugs in the United Kingdom? After an approval in the United States, when does an approval occur in the United Kingdom and other countries? Who decides how NHS will allow drugs? Who does the evaluations for drugs in the United Kingdom? What UK firm approves pharmaceutical drugs? What UK organization evaluates drugs?  What firm in England and Wales decides if the NHS allows drugs? What is the name of the core guide for pharmacists and clinicians?