Multiple ingredients are in alphabetical order, separated by a semicolon.
The active ingredient(s) for the product.
ingredient is a wide variable with multiple ingredients separated by a semicolon.
Source Text File: products.txt
Source File URL: www.fda.gov/downloads/Drugs/InformationOnDrugs/UCM163762.zip
Source Page: http://www.fda.gov/Drugs/InformationOnDrugs/ucm129662.htm
NBER URL:  http://www.nber.org/data/fda-orange-book-data.html
by Jean Roth , jroth@nber.org ,  8 Jul 2016