Buy Triclabendazole Online in the USA: 2026 Fascioliasis Treatment Guide

What Is Triclabendazole?

Triclabendazole is a benzimidazole-class antiparasitic drug first developed for veterinary use against liver flukes in cattle and sheep. It was later adapted for human use and has been on the WHO Model List of Essential Medicines since 1997 for the treatment of fascioliasis and paragonimiasis. Novartis markets the human formulation under the brand name Egaten, which received FDA approval in the United States in February 2019 for adults and children aged 6 years and older with fascioliasis.

The generic Indian versions, Triclabend 250mg and Triclabend 500mg, are manufactured by Kachhela Medex Pvt. Ltd. and follow WHO-GMP standards. The active pharmaceutical ingredient is chemically identical to Egaten. What differs is the tablet size, packaging, and the regulatory pathway used to bring them to market.

Triclabendazole is unusual among antiparasitic drugs because it has a very narrow spectrum. Unlike broad-spectrum drugs like albendazole or mebendazole, triclabendazole does not treat most intestinal worms, tapeworms, or roundworms. It targets a specific class of trematode parasites, primarily Fasciola hepatica.

What It Treats: Fascioliasis and Paragonimiasis

Fascioliasis is infection with liver flukes, most commonly Fasciola hepatica or Fasciola gigantica. Humans get infected by eating aquatic plants (especially wild watercress) or drinking water contaminated with fluke metacercariae. The parasites migrate through the intestinal wall and liver, causing an acute phase with fever, right upper quadrant pain, hepatomegaly, and eosinophilia, followed by a chronic phase where adult flukes live in the bile ducts.

Paragonimiasis is infection with lung flukes (Paragonimus species) acquired by eating undercooked freshwater crab or crayfish. It causes cough, hemoptysis, and pulmonary symptoms that can be mistaken for tuberculosis.

Both conditions are more common in South America, the Nile Delta, parts of Central Asia, and Southeast Asia than in the United States. Domestic US fascioliasis cases are rare but well-documented, particularly in the western states where wild watercress consumption occurs. Global estimates put chronic fascioliasis at 2.4 to 17 million cases according to CDC and WHO surveillance data.

If you are worried you may have picked up a parasite while traveling, the first step is diagnosis, not medication. Stool egg detection, serology, and eosinophil count are the standard tests. See our intestinal worm treatment overview and the antiparasitic medicine guide for how the different infections are worked up.

How Triclabendazole Works

Triclabendazole and its active metabolites disrupt the microtubule cytoskeleton of the fluke. Once absorbed, it is converted to a sulfoxide metabolite in the liver, which binds tubulin in the fluke tegument and inhibits normal microtubule function. The parasite loses its protective tegument, becomes vulnerable to the host immune response, and is cleared over days.

Triclabendazole is effective against both immature (migrating) and adult liver flukes, which is what makes it clinically valuable. Older drugs like bithionol only worked against adult worms and required longer treatment courses. Modern alternatives like nitazoxanide have some activity but are not first-line for fascioliasis according to CDC guidance.

FDA-Approved Dose and Treatment Course

The FDA-approved dose for Egaten is 10mg/kg given as two doses 12 hours apart on a single day, taken with food. The tablet is 250mg. For a 70kg adult, that works out to 700mg per dose, so approximately three 250mg tablets per dose, twice in one day. Food is important because it more than doubles absorption of triclabendazole and its active metabolite compared to fasting.

Simplified dosing table for a typical adult treatment day (10mg/kg twice, 12 hours apart, with food):

Dose rounding is normally done up to the nearest tablet. For pediatric use, the 250mg tablet is more practical for accurate weight-based dosing. The two-dose regimen is highly effective, with cure rates typically reported above 90 percent in the initial course. A repeat course after 12 weeks is sometimes needed in cases of persistent infection.

This guide is not a substitute for a prescriber. Fascioliasis is a serious infection with real complications if under-treated. Confirm the diagnosis and dose with an infectious disease specialist before starting any triclabendazole course.

Egaten vs Generic Triclabendazole

Both products deliver the same drug at the same dose. The choice usually comes down to whether you can access Egaten through your healthcare system in a timely way. Because human fascioliasis is rare in the United States, most retail pharmacies do not carry Egaten in stock, and getting it may take days or weeks. For patients who need to start treatment quickly and have already been diagnosed, the generic import pathway is often faster.

Buying Triclabendazole in the USA

Triclabendazole is a prescription drug in the United States. Personal-use importation of small quantities of prescription drugs is a gray area under FDA policy that historically focuses enforcement on commercial shipments rather than individual patient orders. That said, buying triclabendazole online is a decision that should follow a proper diagnosis, not precede it.

What to check before ordering:

• Diagnosis first. Do not self-medicate for suspected fascioliasis without confirmed serology or egg detection. Similar liver symptoms can come from viral hepatitis, gallstones, or other flukes that respond to different drugs.
• Verify the manufacturer. Kachhela Medex Pvt. Ltd. is a WHO-GMP certified Indian pharmaceutical company. Genuine tablets are blister-packed with clear batch numbers, manufacturing dates, and expiry dates printed on the strip.
• Understand shipping. Legitimate India-to-USA delivery takes 10 to 15 business days. Faster options exist but cost more.
• Match the strength to your prescription. Your provider will normally specify total mg per dose. Choose the tablet strength (250mg or 500mg) that makes the count practical.

At SafeRxPills we stock Triclabend 250mg at $66.00 and Triclabend 500mg at $100.00, both from Kachhela Medex. For an overview of buying antiparasitic drugs online safely, see our buy antiparasitic online guide and the article on WHO-GMP certified medicines.

Side Effects and Safety

Triclabendazole is generally well tolerated in single-day treatment courses. Reported side effects in Egaten trials and post-marketing surveillance include:

• Abdominal pain and biliary colic (the most common reactions, often related to the physical passage of dying flukes through the bile ducts)
• Sweating, nausea, and headache
• Elevated liver enzymes (usually transient)
• Urticaria and mild rash in some patients
• Dizziness

Biliary colic during or after treatment is not a sign the drug is failing. It usually indicates dead flukes being cleared. Severe or persistent pain, jaundice, or fever after treatment should be evaluated urgently.

Triclabendazole causes QT interval prolongation on ECG in some patients. Caution is warranted in anyone with pre-existing QT prolongation, on other QT-prolonging drugs, or with significant electrolyte disturbances. Safety data in pregnancy is limited; treatment during pregnancy is generally reserved for cases where benefit outweighs unknown risk.

When Triclabendazole Is Not the Right Drug

Triclabendazole is not a general-purpose dewormer. It has essentially no useful activity against:

• Roundworms (Ascaris, hookworm, whipworm), use albendazole or mebendazole
• Pinworm (Enterobius), mebendazole or pyrantel
• Tapeworms (Taenia, Diphyllobothrium), praziquantel
• Strongyloides, scabies, or filarial worms, ivermectin
• Giardia or amebiasis, metronidazole or nitazoxanide

If your parasite has not been identified yet, do not start triclabendazole empirically. It will not touch the most common intestinal infections. For a wider comparison of antiparasitic drug choices, see mebendazole vs albendazole and the ivermectin vs mebendazole comparison.