They are advocating lumicidal drugs such as diloxanide furoate or iodoquinol - you can get the 1st from MagicPharma and the 2nd from Medsmex. If you order from Magic you will need a verified by visa card or get a prepaid card from Only1
Lumicidals are generally used during or after treating with a primary drug such as Nita or Metro - Nita is a newer class drug that can kill off a number of organisms - Metro was touted as the gold standard of anti protozoal drugs but some organisms show resistance to it - it also has more side effects than Nita - if you use Metro, better to use Tinindazole or Secnidazole -