Hi Usedtogarden!
I don't believe I've said welcome to our community yet - so welcome to our community!!
I did find this:
Coartem Tablets contain a fixed combination of two antimalarial active ingredients, artemether, an artemisinin derivative, and lumefantrine.
www.rxlist.com/coartem-drug.htmLumefantrine is an antimalarial agent used to treat acute uncomplicated malaria. It is administered in combination with artemether for improved efficacy. This combination therapy exerts its effects against the erythrocytic stages of Plasmodium spp. and may be used to treat infections caused by P. falciparum and unidentified Plasmodium species, including infections acquired in chloroquine-resistant areas.
www.drugbank.ca/drugs/DB06708 So depending on which herbs you are wishing to add in, you can likely use one of these herb/drug interaction checkers. You will need to look up the herb's scientific name online though:
www.drugdigest.org/www.rxlist.com/supplements/article.htm