Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Syrup of ipecac:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

Ipecac was used in cough mixtures as an expectorant or an emetic from the 18th until the early 20th century.[citation needed] For instance, ipecac and opium were used to produce Dover's powder, which was used in syrup form.[citation needed]