Paste this into your article:
{{cite web |url=http://www.accessdata.fda.gov/scripts/cder/drugsatfda/index.cfm?fuseaction=Search.Label_ApprovalHistory#labelinfo |title=Drugs@FDA: FDA-Approved Drugs |format= |work= |accessdate=}}
Enter a DrugBank ID, HGNC ID, ISBN, PubMed ID, PubMed Central ID, PubChem ID, or URL and press submit to fill out an appropriate template that can be pasted into a Wikipedia article:
DrugBank ID HGNC ID ISBN PubMed ID PubMed Central ID PubChem ID URL
{{drugbox}}
{{protein}}
{{cite_book}}
{{cite_journal}}
{{chembox}}
{{cite_web}}
This tool can output XML in case you're interested in developing, for example, an Ajax interface to this page. Just slap a "&format=xml" at the end of the URL.