The Substance Class each Pharmaceutical Substances belongs to are listed under the Substance details at the top of the document window. The indexed Substance Class are all given as active links. Clicking on the desired Substance Class will open a list in the results frame on the left hand side of the Pharmaceutical Substances pertaining to that Substance Class. Selecting a Substance Name will display the selected substance in the document frame on the right hand side. Other Substance Class which are similar, or related, to the selected one will be given after the phrase "see also".
Tip 1: Whilst performing a search, you can limit its scope to within a specific Substance Class by selecting the Substance Class search field in combination with any other text or structure search query in the Advanced Search Interface.
Tip 2: To return to the previous view in the results frame (e.g. your search results list) click on 'Back to previous view' at the bottom of the list of Substance Class.