Herbs and plantsWormwood — the bitter herb that drives out parasites?
- Henryk Różański — Piołun – Herba Absinthii jako surowiec farmakopealny
- Henryk Różański — Piołun – Artemisia absinthium L. w fitoterapii
- Effects of Artemisia absinthium on broiler chicken coccidiosis: a systematic review and meta-analysis. · Avian Pathol 2024
- Potential of Wormwood and Oak Bark-Based Supplement in Health Improvement of Nosema ceranae-Infected Honey Bees. · Animals (Basel) 2024
- A potential herbal therapeutic for trichinellosis. · Front Vet Sci 2022
- Effect of herbal preparation Artemisia absinthium on honeybees infected with Nosema ceranae microsporidia under laboratory conditions. · Open Vet J 2025
Henryk Różański describes wormwood as helpful in fighting roundworms, flatworms, and parasitic protozoa.
- Wormwood oil and tincture are said to destroy external parasites, while wormwood oil is described as a skin treatment that destroys Demodex.
- Pregnancy, breastfeeding, and allergy to wormwood are contraindications; excessive use of the tincture can cause seizures and even epilepsy.
What the authors write
Wormwood is said to be helpful in fighting roundworms, flatworms, and parasitic protozoa.
Wormwood oil and tincture are said to destroy external parasites, such as mites.
Wormwood oil is described as a topical antiparasitic treatment and as an agent that destroys Demodex.
According to the description, wormwood works against worms and protozoa.
Parasitic diseases of the skin and body are listed as indications for oral and topical preparations.
Pregnancy, breastfeeding, and allergy to wormwood are listed as contraindications.
Excessive use of wormwood tincture can cause seizures and even epilepsy.
Research from PubMed · Europe PMC
We selected 4 studies with the best, positive results. This is a selection, not a full review of all research.
Total number of studies on this topic in PubMed: 428.
A meta-analysis found that wormwood extract significantly reduced coccidia oocyst shedding in broiler chickens, although it was less effective than antibiotics.
Aim of the study: Coccidiosis is a recurring disease in broiler flocks that causes significant economic losses. This study aims to evaluate the effect of Artemisia absinthium on coccidiosis in broilers through a systematic review and meta-analysis.
Results: However, the effectiveness of A. absinthium extract was not as significant as that of antibiotics (SMD = 0.57, 95% CI: -0.19 to 0.95; P = 0.0032). Various forms of administration and extracts of A. absinthium have demonstrated antiparasitic activity against Eimeria spp, making them suitable as natural anticoccidial agents.
“Not stated” does not mean nobody paid — the database does not always record it.
In bees infected with Nosema, a supplement containing wormwood and oak bark improved survival and reduced the parasite burden.
Aim of the study: Nosema ceranae, a microsporidian parasite, as one of the stressors that contribute to honey bee decline, has a significant negative impact on the longevity, productivity, and reproductive capacity of honey bee colonies. There are several different strategies for Nosema infection control, including natural-based and antibiotic-based products.
Results: The results revealed a positive influence on the survival of Nosema-infected bees, regardless of when the supplement was given (day 1, day 3, or day 6 after bee emergence), as well as a reduction in Nosema loads and, consequently, Nosema-induced oxidative stress. Supplementation had no negative effects on bee immunity, but greater anti-Nosema than immune-stimulating effects were confirmed based on expression levels of the abaecin, defensin, hymenoptaecin, apidaecin, and vitellogenin genes. In conclusion, the tested supplement “Medenko forte” has great potential for protecting the health of Nosema-infected bees. However, further research is needed to clarify how it works.
“Not stated” does not mean nobody paid — the database does not always record it.
In a study on mice, Artemisia annua extract reduced the number of adult Trichinella roundworms in the intestine.
Aim of the study: Trichinellosis is a helminthic disease caused by Trichinella spiralis through the ingestion of raw or undercooked meat from infected animals. Current estimates indicate that 11 million people worldwide have trichinellosis. The effective use of anti-Trichinella medicines is limited by side effects and resistance, highlighting the critical need for safe and effective drugs, particularly those derived from medicinal plants.
Results: Our findings showed that A. annua treatment reduced the number of adult T. spiralis worms in the intestines of infected animals. Moreover, treatment with A. annua restored normal intestinal structure, reduced edema, and eased inflammation, as shown by reduced inflammatory cell infiltration and TGF-β expression in the intestinal tissues of A. annua-treated animals compared with infected untreated animals. Our findings show that A. annua extract is effective in treating experimentally induced trichinellosis, highlighting its therapeutic potential for intestinal trichinellosis.
“Not stated” does not mean nobody paid — the database does not always record it.
In bees infected with Nosema, wormwood tincture reduced the number of spores but also lowered their survival.
Aim of the study: Treatment of honey bee nosemosis is complicated by the ban on the use of antibiotics, which contaminate bee products. Researchers are seeking environmentally friendly preparations to suppress the development of nosemosis pathogens. The effect of the herbal preparations Artemisia absinthium L. tincture and “HB-101” on the development of the nosemosis pathogen, Nosema ceranae, was studied.
Results: The experiment confirmed that the most effective preparation was 1.5% A. absinthium tincture (1.76 ± 0.47 million spores), compared with 4.94 ± 1.00 million spores per bee in the control group (q'=3.285, p ≤ 0.01). The approved preparation “Fumagilin-B” significantly reduced the number of spores to 2.13 ± 0.47 million. The “HB-101” preparation slightly reduced the count to 2.53 ± 0.66 million spores per bee. Along with suppressing the development of the nosemosis pathogen, the probability of survival was also reduced. The greatest effect on survival (p ≤ 0.01) was observed with 1.5% wormwood tincture (0.073 ± 0.010) and “Fumagilin-B” (0.088 ± 0.005), compared with the control group (0.187 ± 0.008). “HB-101” reduced the probability of survival (p ≤ 0.05) to 0.161 ± 0.007. Wormwood tincture is a promising treatment for nosemosis.
“Not stated” does not mean nobody paid — the database does not always record it.
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