Health Condition

Parasites

About This Condition

Parasites are organisms larger than yeast or bacteria that can cause infection, usually in the intestines. The most common parasites to infect humans in the United States and Canada are giardia (Giardia lamblia), Entamoeba histolytica, cryptosporidium (Cryptosporidium spp.), roundworm (Ascaris lumbricoides), hookworm (Ancylostoma duodenale and Necator americanus), pinworm (Enterobius vermicularis), and tapeworm (Taenia spp.).

Infection with parasites can be life-threatening in people with severe impairment of immune function. People should consult a physician if they suspect a parasitic infection.

Caution: Any herb potent enough to kill parasites could potentially harm the person taking it. Although some herbs have antiparasitic actions in test tubes, none has been adequately tested for efficacy or safety in humans. Safe and proper use requires the skills of an experienced practitioner.

Symptoms

Parasite infections can lead to a variety of symptoms, including gas, bloating, diarrhea, weight loss, abdominal cramping and pain, constipation, nausea, vomiting, loss of appetite, fever, rash, cough, itching anus, and bloody or foul-smelling stools.

Other Therapies

Severe diarrhea may require hospitalization for urgent fluid and electrolyte replacement, especially in children and the elderly.

References

1. Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866.

2. Choudhry VP, Sabir M, Bhide VN. Berberine in giardiasis. Indian Pediatr 1972;9:143-6.

3. Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25.

4. Oelkers HA. Studies on anthelmintics. Arzneimittelforschung 1962;121:810-2.

5. Wright CW, Phillipson JD. Natural products and the development of selective antiprotozoal drugs. Phytother Res 1990;4:127-39 [review].

6. Schmeller T, Wink M. Utilization of alkaloids in modern medicine. In: Roberts M, Wink M (eds). Alkaloids—Biochemistry, Ecology and Medicinal Applications. New York: Plenum Press, 1998, 435-59 [review].

7. Okeniyi JAO, Ogunlesi TA, Oyelami OA, Adeyemi LA. Effectiveness of dried Carica papaya seeds against human intestinal parasitosis: a pilot study. J Med Food 2007;10:194-6.

8. Miyares C, Hollands I, Castaneda C, et al. Clinical trial with a preparation based on propolis “propolisina” in human giardiasis. Acta Gastroenterol Latinoam 1988;18:195-201.

9. Weiss RF. Herbal Medicine. Gothenberg, Sweden: Ab Arcanum and Beaconsfield,UK: Beaconsfield Publishers Ltd, 1985:203-4.

10. Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866.

11. Choudhry VP, Sabir M, Bhide VN. Berberine in giardiasis. Indian Pediatr 1972;9:143-6.

12. Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25.

13. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

14. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

15. de Santana CF, de Almeida ER, Dos Santos ER, Souza IA. Action of Mentha crispa hydroethanolic extract in patients bearing intestinal protozoan. Fitoterapia 1992;63:409-10.

16. Mirelman D, Monheit D, Varon S. Inhibition of growth of Entamoeba histolytica by allicin, the active principle of garlic extract (Allium sativum). J Infect Dis 1987;156:243-4.

17. Bastidas CJ. Effect of ingested garlic on Necator americanus and Ancylostoma caninum. Am J Trop Med Hyg 1969;13:920-3.

18. Koch HP, Lawson LD, eds. Garlic: The Science and Therapeutic Application of Allium sativum L. and Related Species. Baltimore: Williams & Wilkins, 1996, 173-4.

19. Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866.

20. Choudhry VP, Sabir M, Bhide VN. Berberine in giardiasis. Indian Pediatr 1972;9:143-6.

21. Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25.

22. Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866.

23. Choudhry VP, Sabir M, Bhide VN. Berberine in giardiasis. Indian Pediatr 1972;9:143-6.

24. Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25.

25. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

26. Gupte S. Use of berberine in treatment of giardiasis. Am J Dis Child 1975;129:866.

27. Choudhry VP, Sabir M, Bhide VN. Berberine in giardiasis. Indian Pediatr 1972;9:143-6.

28. Kaneda Y, Torii M, Tanaka T, Aikawa M. In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia and Trichomonas vaginalis. Ann Trop Med Parasitol 1991;85:417-25.

29. Weiss RF. Herbal Medicine. Beaconsfield, UK: Beaconsfield Publishers Ltd., 1985, 119-20.

30. Chou HC, Ming H. Pumpkin seed (Cucurbita moschata) in the treatment of acute schistosomiasis. Chin Med J 1960;80:115-20.

31. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

32. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

33. Kliks MM. Studies on the traditional herbal anthelmintic Chenopodium ambrosioides L.: Ethnopharmacological evaluation and clinical field trials. Soc Sci Med 1985;21:879-86.

34. Chopra RN, Chandler AC. Anthelmintics and Their Uses in Medical and Veterinary Practice. Baltimore: Williams & Wilkins Co, 1928.

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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.