Encyclopedia · Protozoa

Giardia lamblia

Giardia

Symptoms reported

  • •Diarrhea
  • •Intestinal pain
  • •Abdominal distress

Life cycle

This parasite replicates rapidly in the intestine through binary fission, often leading to heavy colonization within days of initial ingestion.

Transmission

Fecal-oral route, frequently via contaminated well water and streams.

Conventional medical treatment

Metronidazole 250mg 3x/day for 5-7 days or Tinidazole 2g single dose.

For information only. Discuss with a licensed healthcare provider before starting any pharmaceutical.

Treatment Options — Natural First, Pharmaceutical When Needed

Natural First

  • •Berberine
  • •Artemisia
  • •Pumpkin seed
  • •Activated charcoal (binder)
  • •Hydration + electrolytes
  • •Rest + bone broth nutrition

Pharmaceutical (if natural-first insufficient)

  • •Metronidazole 250mg 3x/day for 5-7 days or Tinidazole 2g single dose.

When to escalate to pharmaceutical

Pharmaceutical first if: > 14 days of diarrhea, dehydration, weight loss > 5%, immunocompromised host, hepatic abscess (Entamoeba), CNS involvement, or pregnancy.

Traditional herbal alternatives

In stock at our apothecary

In our database (educational reference)

Also referenced (not currently in our database):

ArtemisiaGalenic

Each herb above carries a tradition. See the 2,000-year lineage of Western herbal medicine →

“Infections with Giardia lamblia are common throughout the world and are perhaps the most frequently identified intestinal parasite.”

— Parasites Clinical Book (textbook)

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This page is for educational purposes only. It does not provide medical advice, diagnosis, or treatment. Consult a licensed healthcare provider before acting on anything you read here.