Prazitel Plus

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Prazitel Plus

Method of action: Anthelmintic

Treatment option:

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Prazitel Plus

Quick Facts

Property Description
Active Ingredients Praziquantel, Pyrantel embonate, Febantel
Form Tablet (oral, often chewable)
Pharmacological Class Anthelmintic, Antiparasitic Agent
Common Use Management of mixed intestinal parasite infections in dogs
Origin Synthetic, Fixed Triple-Combination

A Veterinary Anthelmintic Defined

Prazitel Plus is a veterinary medicinal product classified as a broad-spectrum anthelmintic, specifically developed for administration to dogs and pups by the manufacturer Chanelle Pharma. Its core identity is that of a synthetic, fixed triple-combination product designed to address parasitic burdens. The use of this combination strategy is clinically recognized for providing comprehensive coverage against multiple classes of parasitic worms. This distinction is critical as it offers a streamlined approach compared to single-compound anthelmintics.

Composition and Form: What Active Ingredients Does It Contain?

The product is supplied as an oral tablet, often featuring a synthetic pork flavour to enhance palatability and ease of administration. It contains the three essential active ingredients: Praziquantel, Pyrantel (as embonate), and Febantel. These substances belong to three distinct pharmacological classes—Praziquantel is a pyrazinoisoquinoline derivative, Pyrantel is a tetrahydropyrimidine derivative, and Febantel is a probenzimidazole—maximizing the range of susceptible parasites. Pharmacological studies support the wide activity spectrum of products using this formulation against common intestinal helminths.

Primary Purpose: Why the Triple-Combination is Essential

The central purpose of this three-way formulation is to achieve synergistic activity for the clearance of mixed helminth infections, offering a complete deworming solution in one tablet. This combined approach is vital for reliably addressing both nematodes (roundworms) and cestodes (tapeworms) that commonly infect dogs. The utilization of compounds with multiple mechanisms of action—which include inducing paralysis, causing structural damage, and disrupting parasite metabolism—is an established pharmaceutical principle for ensuring effective and comprehensive elimination, thereby serving the general purpose of maintaining canine systemic and digestive health.

What side effects are possible with Prazitel Plus?

Possible Side Effects and Safety Information

This section outlines the officially documented adverse reactions and safety characteristics of Prazitel Plus, as classified in government regulatory documents.

Adverse Reaction Scope

The adverse reactions documented in the regulatory label are all classified as Very rare, meaning they are expected to occur in less than 1 animal in 10,000 treated. These effects are organized under specific system-organ classes.

Category Documented Adverse Reaction/System
Gastrointestinal Disorders Diarrhoea, Vomiting (Emesis)
General/Nervous System Lethargy, Anorexia (Loss of Appetite), Hyperactivity

Safety Restrictions and Population-Specific Notes

The official labeling includes specific contraindications and safety considerations that restrict the use of the medicine:

  • Hypersensitivity: The product is contraindicated for use in animals with a known sensitivity to Praziquantel, Pyrantel embonate, Febantel, or any of the inactive ingredients.
  • Early Pregnancy: Use is not recommended during the first four weeks of pregnancy due to the potential for adverse effects associated with the Febantel component. Use during pregnancy must follow a formal benefit/risk assessment.
  • Drug Interactions: Prazitel Plus is contraindicated for concurrent use with preparations containing piperazine or other cholinergic compounds, as this may lead to antagonism of the anthelmintic effects or increased toxicity, respectively.
  • Parasite Resistance: Regulatory documents note the possibility that the development of parasite resistance may occur following the frequent, repeated use of anthelmintics belonging to the same therapeutic class.

Overdose and Emergency Response

Overdose and when to seek help: Official Regulatory Information

Overdose Scope

The regulatory safety profile for the Prazitel Plus combination (Praziquantel, Pyrantel embonate, and Febantel) documents that the product is well tolerated in dogs.

  • Documented Overdose Presentation: Clinical signs observed in safety studies involving doses five times the recommended dosage or greater included occasional vomiting. No other severe or systemic manifestations were documented in the official overdose section for the target species.
  • Physiological Systems Affected: The primary documented effect is related to the gastrointestinal system.
  • Exposure-Related Factors: The documented clinical manifestation of vomiting is constrained to high exposure levels, specifically a single dose of five times the recommended amount or more.
  • Population-Specific Notes: No specific warnings about increased overdose severity for pups or dogs with underlying conditions are contained within the official overdose summary.

Emergency Response and Help-Seeking

Immediate actions mandated by regulatory authorities concern accidental human exposure to the product.

  • When Immediate Medical Help is Required: Immediate medical advice must be sought in the event of accidental human ingestion of the product.
  • Required Emergency Action: The individual seeking assistance is formally required by the label to show the package leaflet or the label to the physician upon consultation.
  • Antidote and Management: There are no specific supportive procedures, such as gastric lavage, or antidote information described in the regulatory overdose summary for this product.

Summary of Official Overdose Profile

The official overdose profile is defined primarily by the product’s high tolerability in the target species, where the only consistently documented clinical finding is occasional vomiting associated with severe dose levels. Given this profile, the most critical, regulator-mandated guidance on when to seek help is reserved for the specific risk of accidental human ingestion, requiring immediate medical consultation, as stated by the official labels.

Therapeutic Uses of Prazitel Plus

What Prazitel Plus Treats: Main Uses and Benefits

Prazitel Plus is commonly used for managing symptoms associated with mixed infections of intestinal parasites. It is applied across domains where additional symptomatic support is needed in conditions involving parasitic groups in dogs, providing support that helps ease the overall symptom burden during these episodes.

The therapeutic domain is associated with symptomatic relief in conditions involving roundworms, hookworms, whipworms, and tapeworms. This comprehensive scope may assist with maintaining functional stability and contributes to easing the symptom load during symptomatic periods. The combination of ingredients addresses symptomatic distress linked to these parasite categories.

Targeted Symptom Management

The product is often used during phases when symptoms become more noticeable and when supportive symptom management is appropriate for pronounced symptoms linked to nematodes. It is commonly used when symptoms create noticeable functional strain. The medication is also applied across domains where additional symptomatic support is needed due to tapeworm infestation. It is commonly used in scenarios where symptoms escalate temporarily or are linked to irritative states within the digestive tract.


Quick Fact: Relief for Parasite-Driven Discomfort
Prazitel Plus Is commonly used to help with symptoms that may become intense or disruptive in conditions presenting with acute episodes of common intestinal worm infestations.

Regulatory References

  1. U.S. Code of Federal Regulations (21 CFR § 520.1872)

Eligibility and Restrictions for Use

Who Can and Cannot Use Prazitel Plus?

Eligibility for Prazitel Plus is strictly defined by regulatory authorities for the target species, dogs.


Eligibility Scope

Category Regulatory Status
Populations for whom use is allowed Dogs (Target Species) and Lactating Bitches (no official restriction).
Populations for whom use is contraindicated Animals with a known hypersensitivity to the active ingredients (Praziquantel, Pyrantel embonate, Febantel) or excipients. Non-canine species (Not the target species).

Eligibility Restrictions and Conditional Use

Category Regulatory Status
Age-related restrictions Pups less than 6 weeks of age are generally considered non-eligible due to the low likelihood of certain parasitic infections.
Pregnancy restrictions Not recommended for use during the first 4 weeks of pregnancy. Use during the remainder of pregnancy requires a veterinarian's benefit-risk assessment.
Concurrent medication Contraindicated for simultaneous use with piperazine compounds, as the anthelmintic effects may be opposed.

Regulatory documents establish that use is strictly limited to the target species and is prohibited when hypersensitivity or co-administration with piperazine exists. Restrictions apply based on age and reproductive status, clarifying who is eligible for treatment under labeled conditions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Prazitel Plus defines specific interaction constraints based on the product’s triple-combination components, classifying these patterns as pharmacokinetic and pharmacodynamic in nature. The interactions are defined solely by the effects of co-administered medicinal products.

Contraindicated Combinations The simultaneous use of this product with Piperazine compounds is contraindicated. This restriction is documented due to a pharmacodynamic antagonism effect where piperazine may oppose or diminish the anthelmintic activity of the Pyrantel component.

Exposure and Toxicity Interactions Co-administration with other cholinergic compounds carries a documented risk of systemic toxicity classification due to a reinforcement of cholinergic effects. Furthermore, the Praziquantel component is subject to pharmacokinetic interaction with certain enzyme-modifying drugs. Substances classified as Cytochrome P-450 (CYP) enzyme inducers, such as phenobarbital and dexamethasone, are known to accelerate the metabolism of Praziquantel. This enzyme induction effect results in a reduction in the plasma concentration or systemic exposure of this active ingredient. No mandatory timing requirements or food/supplement interactions are explicitly documented in official regulatory sources for this product.

Interaction Type Interacting Substance Official Constraint
Pharmacodynamic Piperazine compounds Contraindicated (Antagonism)
Pharmacodynamic Cholinergic compounds Toxicity Risk (Reinforcement)
Pharmacokinetic CYP enzyme inducers Reduced Exposure (Metabolism)

Mechanism of Action

Prazitel Plus employs three distinct and complementary pharmacological mechanisms, resulting in broad mechanistic scope against both cestodes and nematodes.

Targeted Neuromuscular and Structural Disruption

This domain covers the rapid-onset mechanisms targeting parasite mobility and physical integrity. Praziquantel activates specific calcium channels on cestodes, causing a sudden influx of Ca^2+ ions, leading to severe muscle contraction and breakdown of the outer protective layer. Concurrently, Pyrantel embonate acts as an agonist on unique nicotinic receptors in nematodes, inducing a state of spastic, depolarizing paralysis. These actions result in the parasite's loss of attachment capability to the intestinal wall.


Metabolic and Cytoskeletal Starvation

The third mechanism, driven by Febantel, provides a sustained action via metabolic pathways. Once metabolized, the active compounds bind to the parasite's beta-Tubulin protein, thereby inhibiting the formation of essential microtubules. This disruption critically impairs the parasite's nutrient transport and energy metabolism pathways, initiating a cascade that leads to ATP reserve depletion and sustained metabolic failure. This slower metabolic mechanism functionally complements the rapid-onset paralysis mechanisms. The loss of muscular control and structural integrity contributes to the expulsion of the parasites from the intestinal lumen via host peristalsis.

Dosage and Administration Information

Official Administration Guidelines

Prazitel Plus is designated strictly for oral administration only. The official instruction requires the administration of a single dose, which is derived from the animal's body weight to achieve the minimum dose rate of 5 mg/kg bodyweight Praziquantel, 5 mg/kg bodyweight Pyrantel (base), and 15 mg/kg bodyweight Febantel. This principle translates directly to the prescriptive instruction of administering one Standard Tablet per 10 kg bodyweight or one XL Tablet per 35 kg bodyweight.

Procedural Use and Timing

Administration is facilitated by the official guidance that no starvation is necessary either before or after the treatment. The tablet may be given directly or disguised in food, removing the dependency on meal timing typical of some other medications.

To ensure accurate dosing, the animal's body weight should be determined as precisely as possible. The standard tablets are scored to allow division into two or four equal parts, while the XL tablet is scored for division into two equal halves, enabling accurate dosing for varying weights. The medication is given as a single course for the treatment of the current parasitic episode.

Population and Co-administration Constraints

Specific usage constraints define the product's scope. The product is not for use in pups less than 6 weeks of age. Furthermore, use is not recommended during the first four weeks of pregnancy, and the stated dosage must not be exceeded when treating pregnant dogs. An important procedural restriction is the instruction not to use Prazitel Plus simultaneously with piperazine compounds.

Recent Clinical Evidence

Prazitel Plus: Recent Clinical Evidence


Evidence for Core Intestinal Worm Claims (Nematodes and Cestodes)

Research examined the fixed triple-combination of active ingredients for its intended purpose related to nematode (roundworm, hookworm, and whipworm) and cestode (tapeworm) infections. The evidence base includes laboratory studies and non-blinded field trials that primarily monitored Anthelmintic Efficacy, which was quantified by examining the reduction of parasite eggs (FECR) and parasite clearance. Findings observed in the studies consistently reported measurements of Efficacy that met predefined regulatory thresholds across the species examined.

For tapeworms, the evidence landscape related to the fixed combination is informed by the research history of one of its active ingredients, Praziquantel, supported by extensive bibliographic data accepted by regulators. Other studies monitored systemic exposure to confirm the finished product is bioequivalent—meaning it achieves a similar level of the active ingredients in the blood—to an established reference product. Research has also explored the combination’s components in studies examining outcomes related to protozoal infections like Giardia, although this is not a primary regulatory claim.


Research Durability, Limitations, and Gaps

The follow-up durations for the primary efficacy studies were limited, typically ranging from seven to fourteen days post-treatment. This means the research provides context for short-term changes but offers limited insight into long-term outcomes or the durability of the observed clearance effect. The existing studies provide limited information concerning the duration of the effect or the potential for re-infection in field environments.

The broader evidence landscape has several limitations. Sample sizes were modest in some field trials, meaning that results apply only to the populations studied. Furthermore, data for certain groups remain insufficient, and the comparative evidence is lacking to fully determine how this fixed triple-combination compares structurally to other single-agent products used to address similar conditions.

Key Studies & References

  1. SUMMARY OF PRODUCT CHARACTERISTICS: Prazitel Plus XL Tablets For Dogs (VMD/Defra Regulatory Document)
  2. praziquantel/pyrantel pamoate/febantel - Animal Drugs @ FDA (Freedom of Information Summary detailing initial efficacy studies)
  3. UPLC-MS/MS method for simultaneous determination of pyrantel, praziquantel, febantel, fenbendazole and oxfendazole in dog plasma and its application to a bioequivalence study

Frequently Asked Questions (FAQ)

Common questions about Prazitel Plus (FAQ)

Q: What is the main purpose of Prazitel Plus?

Official product information states that Prazitel Plus is indicated for the treatment of mixed infections caused by certain types of roundworms, hookworms, whipworms, and tapeworms in dogs. The medicine is indicated to treat infections caused by these parasites in the target species.

Q: Is Prazitel Plus available only by prescription?

According to the authorized regulatory classification in many territories, Prazitel Plus is designated as a veterinary medicinal product subject to prescription. Its availability and the exact classification may vary by country based on the requirements of national competent authorities.

Q: What does the 'Plus' in Prazitel Plus refer to?

The 'Plus' designation refers to the combination of three active ingredients: Praziquantel, Pyrantel embonate, and Febantel. This triple combination provides a broad scope of action against various internal parasites in dogs.

Q: How quickly does Prazitel Plus typically start working after it is taken?

Official documents describe one of the primary mechanisms, involving Praziquantel, as very rapidly absorbed by the parasite. This absorption leads to rapid structural effects on the parasite. The complementary actions of the other two ingredients work together to achieve a full treatment effect against the target organisms.

Q: How long can the effects of Prazitel Plus be expected to last?

Prazitel Plus is administered as a single course of treatment to address the current parasitic episode in the dog. Since the duration of protection depends on the risk of re-infestation, consultation with a veterinarian is advised to determine the appropriate frequency for re-administration.

Q: What is the recommended general action for a missed dose of Prazitel Plus?

Official administration guidelines define Prazitel Plus as a single-dose treatment course, not a multi-day regimen. Therefore, the concept of a 'missed dose' as part of a routine schedule is not applicable to this veterinary product.

Q: Are there any instructions regarding the storage of Prazitel Plus?

Regulatory documents provide specific storage instructions, particularly for tablets that have been divided for dosing. Any unused portions of a tablet must be returned to the open blister space and the blister inserted back into the outer carton, which is required to maintain the stability of the product.

Q: What are the most commonly reported side effects of Prazitel Plus?

According to official regulatory safety reports, adverse events are very rarely reported in treated dogs (less than 1 in 10,000 animals treated). The documented events may include mild digestive issues like diarrhoea and emesis (vomiting), as well as temporary changes such as lethargy or hyperactivity.

Q: Is it normal to feel slightly nauseous after taking Prazitel Plus?

Prazitel Plus is strictly a veterinary medicine intended for use in dogs. While adverse events in the target species can include digestive upset like vomiting, the information does not relate to effects on humans. Official sources caution that if accidental human ingestion occurs, medical advice is recommended without delay.

Q: How should a user identify the signs of a serious allergic reaction to Prazitel Plus?

Regulatory documents state that the product is contraindicated in cases where there is a known hypersensitivity to any of the active substances in dogs. Warnings for humans focus on seeking immediate medical consultation if the product is accidentally ingested. The official text does not describe the symptoms of human allergic reactions.

Q: What is the available information on taking Prazitel Plus during pregnancy or breastfeeding?

Official information restricts its use in pregnant dogs, advising against administration during the first four weeks of pregnancy and stressing that the dose must not be exceeded. The official regulatory text does not provide specific safety information or guidance regarding its use during lactation (breastfeeding) in dogs.

Q: Has Prazitel Plus received approval from major regulatory bodies like the FDA or EMA?

Prazitel Plus is regulated as a veterinary product in many regions by national authorities, such as the VMD in the UK and the HPRA in Ireland, which operate under European regulatory procedures. The approvals relate to its authorization for use in the target species, dogs.

Q: Are there any specific over-the-counter medicines known to interact with Prazitel Plus?

Official documents specify two classes of medicines that should not be used simultaneously with Prazitel Plus due to interaction risks: Piperazine compounds and other cholinergic medicines. These combinations can lead to reduced efficacy or increased toxicity. The official text does not list specific brand names for over-the-counter products.

Q: Is Prazitel Plus described as appropriate for use in patients with known liver function issues?

Pharmacokinetic data shows that one of the active ingredients is metabolised in the liver before being excreted. However, official regulatory documents do not provide specific contraindications or guidance on dose adjustment for the target species with existing liver function issues.

Q: What does the available research evidence indicate about the long-term safety of Prazitel Plus?

Regulatory safety warnings note that repeated use of anthelmintics (dewormers) from the same drug class can increase the risk of parasite resistance. This suggests that long-term, repeated administration should be determined by veterinary guidance, as the product is indicated as a single treatment course.

Q: What kind of human studies were conducted to support the use of Prazitel Plus?

Prazitel Plus is strictly a veterinary medicinal product intended for use in dogs. All supporting studies and regulatory approvals are based exclusively on data concerning the target species, dogs, and not humans.

Q: Are there any known general restrictions on activities, such as driving, while using Prazitel Plus?

Since Prazitel Plus is intended for use in dogs, official regulatory documents do not include information about restrictions on human activities like operating machinery or driving. The primary warnings related to human contact concern the avoidance of accidental ingestion.

Q: Is Prazitel Plus used for any purposes other than those officially listed?

The authorized regulatory label clearly defines the specific range of nematodes and cestodes for which the product is indicated in dogs. Regulatory documents restrict its use to these official indications, meaning use for any other purpose is not defined by the marketing authorization.

How should Prazitel Plus be stored and disposed of?

How to Store and Dispose of Prazitel Plus

Official regulatory information governs the storage and disposal of Prazitel Plus. This section outlines the required conditions for stability and mandated disposal rules.

Storage Requirements

  • Temperature: No special temperature storage conditions are required, though some documents specify Do not store above 25 C.
  • Packaging: The product must be kept in the outer carton and out of the sight and reach of children.
  • Divided Tablets: A half tablet is only stable for 14 days and must be returned to the original blister space and carton for storage.

Disposal Instructions

Unused or expired product must not be disposed of via wastewater or household waste. Disposal should be conducted in accordance with local requirements, typically through a medicine take-back scheme, to protect the environment.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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