Is the ritalin molecule a polymer?
I don't think it is but here are some sites. Check it out yourself.
http://www.google.com/search?q=ritalin&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://www.google.com/search?q=ritalin&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a