About Drontal
Drontal is a global veterinary brand of broad-spectrum deworming medicines for dogs and cats. It is designed to treat and control common intestinal parasites, including roundworms, hookworms, whipworms (dogs), and tapeworms. The brand is widely recommended by veterinarians and is sold in numerous countries through veterinary clinics, pharmacies, and authorized pet retailers. [1]
Today, ownership of the Drontal brand varies by region. In many European countries, the United Kingdom, Australia, and several other markets, Drontal is owned and marketed by Vetoquinol following the acquisition of regional rights from Elanco in 2020–2021. In the United States, Drontal products continue to be marketed by Elanco. [2]
History
Drontal was originally developed under the animal health business of Bayer and became one of the world’s best-known companion animal deworming brands. After Elanco acquired Bayer Animal Health in 2020, competition authorities required the sale of Drontal rights in several regions. Those regional rights were acquired by Vetoquinol, while Elanco retained rights in markets such as the United States. [3]
Purpose
Drontal products are intended to eliminate intestinal worms that commonly infect companion animals. Untreated intestinal parasites may cause:
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Weight loss
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Vomiting
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Diarrhea
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Poor growth in puppies and kittens
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Reduced overall health
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Environmental contamination through parasite eggs
Routine deworming is often recommended as part of preventive veterinary care. [4]
Active Ingredients
Different Drontal formulations contain different combinations of antiparasitic drugs depending on the species and product variant.
Common active ingredients include:
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Praziquantel – effective against tapeworms
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Pyrantel pamoate (or pyrantel embonate) – effective against roundworms and hookworms
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Febantel – included in many dog formulations to provide activity against whipworms and additional nematodes [5]
Product Range
Drontal is marketed in several formulations, including:
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Drontal for Cats
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Tablets
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Targets roundworms, hookworms, and tapeworms
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Drontal for Dogs
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Tablets or flavored tablets (market-dependent)
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Broad-spectrum treatment against major intestinal worms
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Drontal Plus
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Primarily formulated for dogs
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Contains praziquantel, pyrantel, and febantel for expanded parasite coverage
Product names, strengths, and dosage forms vary by country. [6]
How It Works
The active ingredients attack parasites through different mechanisms:
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Praziquantel damages tapeworms, causing paralysis and death.
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Pyrantel paralyzes susceptible nematodes, allowing them to be expelled naturally.
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Febantel interferes with parasite metabolism and development, improving effectiveness against certain intestinal worms.
The combination provides broad-spectrum activity in a single treatment. [7]
Administration
Drontal is administered orally. The dosage is determined by:
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Species (dog or cat)
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Body weight
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Product formulation
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Veterinary recommendations
Many products are designed as a single-dose treatment, although repeat dosing or routine preventive schedules may be advised depending on the animal’s lifestyle and parasite risk. [8]
Safety
When used according to the product label or a veterinarian’s instructions, Drontal is generally well tolerated.
Possible side effects may include:
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Temporary vomiting
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Mild diarrhea
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Reduced appetite
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Lethargy (uncommon)
Some formulations have restrictions for very young animals, pregnant animals, or animals with specific health conditions, so label directions should always be followed. [9]
Global Availability
Drontal is sold in many regions worldwide, including:
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North America
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Europe
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Australia
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Parts of Asia
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Latin America
Packaging, approved indications, and regulatory status differ between countries. [10]
Reputation
Drontal is regarded as one of the best-known veterinary deworming brands for companion animals and has been used in clinical practice for decades. It is frequently recommended by veterinarians because of its broad-spectrum activity and long history of use. As with any veterinary medicine, purchasing from veterinarians or authorized retailers helps reduce the risk of counterfeit products. [11]
