What is a formulary?
A formulary is a list of preferred medications to be prescribed, often with first, second, and third options. Prescribers, like your GP, follow their local drug formulary to make sure you get medication that is effective and good value for money.
There are also lists of medications which are considered ‘less suitable for prescribing’ based on their safety data, lack of evidence of effectiveness, and cost.
Some medications can only be supplied by hospitals or specialist centres because of the way their use is monitored, or because they are already funded as part of a package of care.