Wormwood (Artemisia annua) is a valuable medicine for a lot of health issues from the treatment of intestinal worms and helminths to curing malaria or even cancer. German researchers demonstrated that Artemisia annua is also effective against coronavirus (COVID-19). See this link for more information about using Artemisia for COVID-19.

Introduction to Wormwood for Parasites

Wormwood or Artemisia annua is one of the most potent herbal anti-parasitic medications available. Artemether-lumefantrine is perhaps the most powerful pharmaceutically engineered anti-malarial (malaria is a parasite) on the market, a drug that was developed using artemisinin, one of the active ingredients in Artemisia annua. Unfortunately, it’s exceedingly difficult to get Artemether-lumefantrine perhaps because the active ingredient is a valuable anti-cancer agent (which means it could put Big Pharma out of business).The Wormwood plant is also effective against intestinal parasite infestations and in fact, experts believe that an herbal treatment is less likely to lead to parasite resistance of the treatment because the A. annua plant is more complex than the drug Artemether-lumefantrine which is made up of relatively few chemical substances in comparison.

Taking Artemisia annua in the sunlight potentiates its effects, but don’t take antioxidant medicines at the same time! The reason why Artemisia annua is activated in the sunlight is because full spectrum light cleaves the hydrogen peroxide that is released by the plant. These hydrogen peroxide molecules, once cleaved, turn into hydroxyl ions which are powerful oxidizers that kill pathogens and cancer cell on contact.


How to Take Wormwood for Parasites


Artemisinin, the active ingredient in wormwood that has been studied the most by scientists, has a half-life of 2 hours. In other words, within 2 hours, half of the Artemisinin has been metabolized and eliminated from the body. Though a short half-life may seem inconvenient because you have to take wormwood more often, a short half-life also makes it more difficult for parasites in your body to build up resistance to it. Plan to take a new dose of wormwood every four to six hours. The plasma concentration of dihydroartemisinin (a metabolite of artemisinin) does build up in the blood with repeated use so if you have to wait a little longer than 6 hours between doses, it will be okay…wormwood still builds up in your system if you take it regularly.


By the fifth day of use, your liver starts to produce enzymes that lower the bioavailability of wormwood inside your body by a factor of 6.9. In other words, you begin to develop a tolerance to wormwood. Slowly increase the amount of Artemisia annua that you take each day.


Artemisinin could cause hypotension and it can also cause miscarriage during the first trimester of pregnancy.


Another, related herb, Artemisia absinthium, is also an effective anti-parasitic, but it is more toxic and in fact, can be lethal in high enough doses.



Below are some of the adverse events that have resulted from taking super-high doses of wormwood. Most people don’t experience any of these things, but if you do, stop use and consider a different treatment strategy such as pyrantel pamoate for parasites:

  • Dizziness
  • Tinnitus
  • Nausea
  • Abdominal pain
  • Pruritus (itching)
  • RARE: Cough and skin rash due to an allergy to wormwood

For more information about how we treated our own parasite infection, click here.


Other Important Links:

Unconventional Treatment for Infertility in Women: Parasite Cleansing for Conception

Menstruation Problems and Parasites

Parasite Protocol: Anti-Parasitics and Beyond

Treatment of Parasites for Humans

Why Your Doctor Never Told You about Parasites

ADHD? Depression? Anxiety? Consider Parasites.

ADHD or Maybe Parasites?

Vitamin B12 Deficiency: What Every American Needs to Know 



Willcox, M., Bodeker, G., Rasoanaivo, P. (2004). Traditional Medicinal Plants and Malaria. CRC Press: New York.


Hoffman, D. (2003). Medical Herbalism: The Science and Practice of Herbal Medicine. Healing Arts Press: Rochester, VT.