What is the generic form of Delsym (dextromethorphan)?

Which form of Delsym (dextromethorphan) Turns out that there are many forms of Delsym (http://www.delsym.com/products/) so the answer to your question depends upon which one you're interested in. Some contain dextromethorphan (http://www.delsym.com/products/adult-12-hour/delysm-adult-12-hour/) while others contain none, rather acetaminophen, diphenhydramine & phenylephrine (http://goo.gl/eJfwgx). Check out website for active ingredients.