Strongid P Equine Dewormer Overview

Strongid P is a veterinary deworming treatment for horses used to manage certain intestinal parasites.

This page summarizes common uses, handling basics, and key safety points, with Ships from Canada to US.

Access is available through cash-pay pathways for those without insurance.

What Strongid P Is and How It Works

When a prescription is required, it is confirmed with the prescriber.

This product is widely recognized as a pyrantel pamoate–based anthelmintic (dewormer). Pyrantel works inside the intestinal tract, where it can disrupt nerve signaling in susceptible parasites. In plain terms, it may cause worms to lose their grip and be passed from the gut. Because it mainly acts in the intestines, it is generally discussed as a treatment for internal parasites rather than external pests like ticks.

Most guidance focuses on intestinal nematodes (roundworms), including strongyles (often called bloodworms), ascarids (large roundworms), and pinworms. Some labeling for pyrantel products also describes an option used as a “double-dose” regimen for certain cestodes (tapeworms), but that use depends on the specific package directions and veterinary guidance. Parasite patterns vary by region, pasture management, and age group, so product selection is usually tied to the parasite risk profile and fecal testing trends in a barn.

Who It’s For

This medicine is intended for horses and is generally used as part of a broader parasite-control plan. Programs often differ for foals, yearlings, adult horses in training, and older horses, because exposure and susceptibility can change with age, housing, and pasture density. For background on common intestinal parasites across species, the Intestinal Worms hub is a helpful browseable starting point.

Strongid P may be considered when a veterinarian is targeting parasites that are typically susceptible to pyrantel, or when a barn plan rotates dewormers to reduce selection pressure. High-level reasons to avoid or delay treatment can include known hypersensitivity to ingredients, severe debilitation, or situations where accurate weight estimation is not possible and the risk of incorrect dosing is higher. Use in pregnant or lactating mares, very young foals, or medically complex cases should follow label directions and individualized veterinary judgment.

Dosage and Usage

Equine dewormers are usually dosed by body weight, and correct weight estimation is one of the biggest drivers of safe, effective use. Many products in this class are given by mouth, often as a paste delivered from a dosing syringe. The goal is to ensure the full measured amount is swallowed and not lost to spitting, head tossing, or feed contamination. Barn records also matter, since repeated treatments without a plan can contribute to resistance over time.

Reading the dosing directions

Label instructions typically explain how to measure a dose for weight bands and how to administer the product safely. That includes guidance such as restraining the horse calmly, placing the dosing tip in the mouth, and delivering the medicine toward the back of the tongue. If the label describes a special regimen (such as a double-dose approach for specific parasites), it should be followed exactly as written rather than improvised. When there is uncertainty about timing, parasite targets, or coexisting illness, a veterinarian can align deworming with fecal egg count results and local resistance patterns.

Quick tip: Keep a simple deworming log with dates, weights, and fecal test notes.

Strongid P dosage is determined by the package directions and veterinary guidance, rather than a one-size schedule. In practice, barns may time treatments around risk periods (such as high exposure on pasture) and the age group most likely to carry heavy burdens. Over-treating can increase selection for resistant worms, while under-treating may leave parasites uncontrolled, so matching the plan to testing and local patterns is often the most practical approach.

Strengths and Forms

Equine pyrantel products are commonly supplied as an oral paste presented in a dosing syringe, but availability and packaging can vary by distributor. Some listings distinguish between standard presentations and versions marketed around a higher-dose option intended for particular parasite targets. Because product labeling can differ, the package insert remains the best source for the exact directions and indicated organisms.

Strongid P is typically discussed in the context of horse wormer paste formats, where dosing is adjusted for weight bands. For shoppers comparing animal health options across species, the Pet Medications category can be used to browse other pharmacy-dispensed items carried on the platform.

Dispensing is coordinated through licensed Canadian partner pharmacies.

Storage and Travel Basics

Storage recommendations should follow the label, but most oral dewormer pastes are kept at controlled room temperature and protected from extremes. Avoid leaving the product in a hot vehicle, direct sunlight, or unheated areas where freezing could occur. Keeping the cap secured and the product in its original packaging helps reduce contamination and makes it easier to track the lot number and expiration date if a concern arises.

For travel, place the medicine in a clean, dry container within a tack trunk or medical kit, separated from feed and supplements. It is also sensible to keep dosing tools clean and to avoid sharing equipment between horses when infectious disease risk is a concern. Unused or expired product should be disposed of according to label instructions or local pharmacy guidance, especially to prevent accidental exposure to children, pets, or livestock that are not the intended species.

Side Effects and Safety

Many horses tolerate pyrantel-based dewormers well, but side effects can occur. More common issues are gastrointestinal and may include mild digestive upset, transient loose stool, or temporary changes in appetite. Some horses may drool or show brief mouth irritation after oral administration. These signs are often self-limited, but they should still be tracked in barn records because patterns can matter over time.

Strongid P can rarely be associated with more serious reactions, particularly in medically fragile animals or when the parasite burden is high. Concerning signs can include marked lethargy, weakness, persistent diarrhea, hives, facial swelling, trouble breathing, or signs of colic (pawing, rolling, looking at the flank). Urgent veterinary evaluation is appropriate if severe symptoms occur, if signs worsen, or if the horse has other conditions that complicate hydration and gut motility.

Why it matters: Early recognition of adverse reactions can prevent small problems from escalating.

For readers also managing deworming in cats and dogs, these resources provide additional safety context by species: Drontal For Cats and Drontal For Dogs. While the species and products differ, the same principle applies: match the medicine to the parasite risk and monitor after dosing.

Drug Interactions and Cautions

Interactions are a practical concern when multiple parasite-control products are used in the same setting. Pyrantel can have clinically relevant interactions with certain other deworming agents, and product labels sometimes caution against combining specific drug classes. In equine practice, a classic example discussed in references is the interaction between pyrantel and piperazine, which may reduce effectiveness when used together. Exposure to some insecticides (including certain organophosphates) is another reason veterinarians may advise added caution.

Non-prescription supplements and feed additives can also complicate interpretation of side effects, especially if several items are introduced at once. If a horse is receiving other medications for pain, infection, ulcers, or endocrine disease, it is reasonable to review the full list with a veterinarian before deworming. For multi-species households where parasite products are also used in small animals, guides like NexGard Combo For Cats and Best Flea Treatment For Dogs can help clarify active-ingredient categories to discuss with a professional.

Compare With Alternatives

Equine parasite control often involves choosing among several drug classes, based on which parasites are most likely and what local resistance patterns look like. Fenbendazole-based dewormers are one common alternative, and ivermectin or moxidectin products are also widely discussed for broad parasite coverage. Tapeworm strategies may involve praziquantel-containing products, depending on the indication and the label.

Strongid P is usually compared with other equine wormers by looking at parasite spectrum, how dosing is presented, and how well the option fits an evidence-based barn plan. For reference points within the catalog, see Panacur Paste (a different dewormer class) and Strongid T (another equine deworming option). A veterinarian can help interpret fecal testing and local trends when deciding between classes.

Pricing and Access

Costs for equine dewormers can vary with package size, presentation, and dispensing requirements. Some items are sold as single-use doses, while others are packaged for a range of weights, which changes the per-treatment total. When comparing options, it helps to consider how many horses are being treated, how frequently deworming is planned based on fecal testing, and whether the product is being used as a standard or higher-dose labeled regimen.

Strongid P access through the platform is structured around pharmacy-dispensed supply pathways, and availability may differ by dispensing partner. US shipping from Canada may be used for eligible orders, and the Promotions page lists current site-wide programs when offered. For general guidance on evaluating online medication sources, Finding Pet Medications Online is a useful overview.

Access is offered on a cash-pay basis.

For households also managing parasites in smaller animals, these related reads may help with planning: Capstar Flea Treatment.

Authoritative Sources

For the most reliable details on parasite targets, contraindications, and administration instructions, consult the product label and a veterinarian familiar with local resistance patterns. Independent references can also help explain how anthelmintic drug classes are used and why rotation strategies may or may not be recommended in a given region.

Neutral pharmacology background is available from: Merck Veterinary Manual Anthelmintics.

Practical equine parasite-control guidance is available from: AAEP Clinical Guidelines.

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This content is for informational purposes only and is not a substitute for professional medical advice.