Dr. Harman's
Liver Fluke Tonic
Cattle herd grazing on a lush green ranch pasture

DOCTOR HARMAN's LIVER FLUKE TONIC

Ropin' Liver Flukes and Ridin' em out!

Dr. Harman's Liver Fluke Tonic delivers proven efficacy against Fasciola hepatica at all lifecycle stages — protecting your herd's productivity and your bottom line.

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Dr. Harman's Liver Fluke Tonic Story

Why Ranchers Choose Us

Science-backed. Field-proven. Rancher-trusted.

Nutritionist-Formulated

Developed by Dr. Harman, a licensed nutritionist with 70+ years in livestock management.

Proven Formula

10 active ingredients clinically validated against Fasciola hepatica at all lifecycle stages.

Cattle-Safe

Formulated for minimal stress on the animal with no meat or dairy withdrawal period required.

Veterinarian examining cattle on a farm

The Threat to Your Herd

Liver fluke costs the industry billions annually.

Fasciola hepatica — the common liver fluke — is one of the most economically significant parasites affecting cattle worldwide. Infected animals suffer reduced weight gain, poor milk production, and in severe cases, acute liver failure.

Early, targeted treatment is the most effective strategy. Dr. Harman's tonic is formulated to interrupt the fluke lifecycle at multiple stages — protecting your herd before damage becomes visible.

Learn about liver fluke

Dr. Harman's outlook on the New World Screwworm outbreak

Our product ingredients, both individually and combined have shown promising results relevant to the screwworm larvae based on their biological activities. Early data is promising and we are eagerly awaiting further data points.

Common sense approaches including wound care, fly control and pasture-hazard management are the first line prevention for preventing an outbreak.

#cattle#cattlefarm#cattleranch#Screwworm#newworldscrewworm

Our Products

Available for every size operation.

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Natural Support for Healthy Livers and Thriving Cattle

Protect Your Herd from Liver Flukes — The Natural Way

Liver flukes are a hidden threat that can quietly rob your cattle of weight gain, fertility, and overall performance. In the wet pastures of the Gulf Coast and the Southeast, these parasites thrive, damaging livers and opening the door to secondary issues like clostridial infections.

Dr. Harman's Liver Fluke Tonic is a powerful, plant-based formula designed specifically for beef cattle operations like Avery Cattle Co. It supports the liver's natural defenses, promotes detoxification, and helps maintain optimal health — without the heavy reliance on synthetic chemicals.

Why Choose Dr. Harman's Liver Fluke Tonic?

  • Targeted Liver Support: Formulated with time-tested botanicals and herbs known to support bile flow, reduce inflammation, and create an environment less hospitable to flukes and other parasites.
  • All-Natural Ingredients: Gentle on the rumen and the animal. Ideal for use in rotation with conventional treatments or as part of an integrated parasite management plan.
  • Improved Herd Performance: Healthier livers mean better nutrient absorption, stronger immunity, faster gains, and higher reproductive success.
  • Easy to Administer: Convenient liquid tonic is drenched for targeted support during high-risk seasons (Fall, Winter and Spring in fluke-prone areas).
  • Producer-Approved: Developed with real-world ranching insight from Gulf Coast cattlemen who understand the challenges of sustainable parasite control alongside NRCS conservation practices.

Key Benefits for Your Operation

  • Helps combat the effects of Fasciola hepatica and related fluke burdens.
  • Supports overall vitality during stress periods (weaning, transport, wet seasons).
  • Complements pasture management, snail habitat reduction, and strategic deworming programs.
  • No harsh withdrawal concerns when used as directed — perfect for flexible marketing windows.

How to Use

Administer during peak fluke risk periods or as part of a seasonal protocol. Recommended for cattle showing signs of poor condition, reduced gains (80 lbs on average based on clinical data), or confirmed fluke exposure (via fecal egg counts or vet diagnostics). Use in conjunction with Ivomec Injection for best results. Always consult your veterinarian for integrated parasite management.

Available Size: 1 Liter.

Take Control of Liver Health Today

Give your cattle the natural edge they need to fight liver flukes and thrive. Dr. Harman's Liver Fluke Tonic — because a healthy liver means a healthier bottom line.

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Ready to Protect Your Herd?

Order the tonic ranchers rely on.

Available in 1 Liter. Request a quote today and our team will respond within one business day.

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What You Can Expect

A treatment program built for real operations.

  • Fast response. Quote requests answered within one business day.
  • Dosing guidance. Clear administration instructions for every pack size.
  • No withholding periods. Safe for flexible marketing windows.
Get in Touch

Speak directly with our team about your herd's needs.

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