The full title of this publication, including its supplements, is the National Formulary, Twenty-Sixth Edition. This title may be abbreviated to NF 26. Where the term NF is used, without further qualification, during the period in which this National Formulary is official, it refers only to NF 26 and any supplement(s) thereto. The same titles, with no further distinction, apply equally to print or electronic presentation of these contents.NF27