Hello - I just saw your question. 1/4 teaspoon for 30 days is enough for parasite removal. Wormwood is a very powerful narcotic anlgesic and can cause severe mental disturbances is too much is taken! It can be VERY dangerous when used incorrectly. Here is thread about Wormwood - please read the entire thread: //www.curezone.org/forums/fm.asp?i=767668#i