Anthelmintics are remedies which kill or expel intestinal worms. Those drugs which kill the parasites are called vermicides, and those which simply promote their expulsion are called vermifuges There is little real distinction in these terms.

The vermicides are: Aspidium, Chenopodium, Cusso, Granatum, Kamala, Oleum Terebinthinae,* Pepo, Santonica.

The vermifuges are: Calomel,* Hydragogue Purgatives,* Spigelia.

Anthelmintics are here divided according to the kind of intestinal parasite against which they are employed.

The Oxyuris vermicularis is a small worm, often called seatworm or threadworm, that infests the large intestine and rectum. The Ascaris lumbricoides is the common roundworm, found chiefly in the small intestine.

The Tcenice are the tapeworms.

Anchylostoma, or Uncinaria, is the name given to a genus of important hook worms.

1 Drugs marked with an asterisk (*) are considered elsewhere.