anthelmint(h)ic (anthelminthic)

https://doi.org/10.1351/goldbook.A00378
Substance intended to kill parasitic intestinal worms, such as helminths. Synonymous with antihelminth.
Source:
PAC, 1993, 65, 2003. 'Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)' on page 2014 (https://doi.org/10.1351/pac199365092003)