Buy NexGard PLUS (Afoxolaner, Moxidectin, & Pyrantel) Chewable Tablets Online: The Definitive Veterinary Guide to Isoxazoline, Macrocyclic Lactone, and Tetrahydropyrimidine Synergy, Systemic Parasitic Kinetics, and All-in-One Monthly Protection in Dogs
Protecting companion dogs from external ectoparasites (fleas and ticks) alongside internal endoparasites (heartworm microfilaria, intestinal roundworms, and hookworms) is a cornerstone of modern veterinary preventive medicine. Fleas (Ctenocephalides felis) cause severe Flea Allergy Dermatitis (FAD) and transmit vector-borne tapeworms, while dangerous tick species (Ixodes scapularis, Amblyomma americanum, Rhipicephalus sanguineus, and Dermacentor variabilis) transmit Lyme disease, Anaplasmosis, Ehrlichiosis, and Rocky Mountain Spotted Fever. Concurrently, internal parasites like tissue-stage Dirofilaria immitis cause irreversible pulmonary arterial damage and fatal heart failure, while intestinal nematodes (Toxocara canis, Ancylostoma caninum) cause severe blood loss, chronic diarrhea, and zoonotic risk to human families.
Requiring dog owners to administer multiple separate topical spot-ons, oral heartworm pills, and intestinal dewormers often causes compliance fatigue, missed monthly dosing windows, and critical gaps in protection.
To streamline multi-parasite prevention into a single, highly palatable monthly administration, veterinary clinicians rely on combination oral therapies. NexGard PLUS Chewable Tablets (manufactured by Boehringer Ingelheim) is a premier, FDA-approved all-in-one monthly parasiticidal chew. Powered by a triple-action formulation of Afoxolaner, Moxidectin, and Pyrantel (as pamoate salt), NexGard PLUS provides complete, broad-spectrum defense against fleas, four major tick species, heartworm disease, roundworms, and hookworms in a single beef-flavored chewable.
This comprehensive clinical manual covers triple-active molecular pharmacology, tissue absorption mechanics, target parasite spectrum, and precise administration protocols for NexGard PLUS.
Triple-Active Molecular Pharmacology & Multi-Target Kinetics
NexGard PLUS delivers a synchronized, three-pronged parasiticidal mechanism targeting nervous and neuromuscular systems across invertebrate parasite classes:
[NexGard PLUS Oral Chew Administered]
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[Rapid Gastrointestinal Absorption into Bloodstream]
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[Triple Active Component Distribution]
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[ECTOPARASITE KILL] [HEARTWORM PREVENTION] [INTESTINAL NEMATODE CLEARANCE]
(Afoxolaner) (Moxidectin) (Pyrantel Pamoate)
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v v v
[GABA & Glutamate Blockade] [Cl- Channel Activation] [Depolarizing Neuromuscular]
(Causes Insect Paralysis) (Paralyzes L3/L4 Larvae) (Paralyzes Adult Worms)
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v v v
[Rapid Flea & Tick Death] [Prevents Heartworm] [Expels Intestinal Parasites]
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------------------------+------------------------
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v
[Complete 30-Day All-in-One Broad-Spectrum Parasite Defense]
1. Isoxazoline Ectoparasiticidal Action via Afoxolaner
Afoxolaner is an advanced member of the isoxazoline class. Following rapid GI absorption, afoxolaner binds systemically to plasma proteins. When fleas or ticks feed on the host’s blood, they ingest afoxolaner, which selectively inhibits gamma-aminobutyric acid (GABA)-gated and glutamate-gated chloride channels in the insect nervous system. This causes uncontrolled central nervous system hyperexcitation, paralysis, and rapid parasite death before ticks can transmit dangerous pathogens.
2. Macrocyclic Lactone Heartworm Defense via Moxidectin
Moxidectin is a potent second-generation macrocyclic lactone. It binds with high affinity to invertebrate glutamate-gated chloride channels in microfilaria and larval stages ($L_3$ and $L_4$) of Dirofilaria immitis. This increases membrane permeability to chloride ions, hyperpolarizing nerve cells and paralyzing tissue-stage heartworm larvae acquired during the preceding 30 days, completely preventing heartworm disease maturation.
3. Tetrahydropyrimidine Intestinal Cleansing via Pyrantel
Pyrantel (as pamoate salt) acts as a depolarizing neuromuscular blocking agent against intestinal nematodes. It stimulates nicotinic acetylcholine receptors on the muscle membrane of roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala), inducing spastic paralysis. The paralyzed worms lose their grip on the intestinal wall and are naturally expelled through normal peristalsis.
Core Canine Clinical Indications
NexGard PLUS Chewable Tablets are a foundational monthly preventive therapy across small animal veterinary practices:
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Treatment & Prevention of Flea Infestations: Kills adult fleas (Ctenocephalides felis) fast, preventing egg production and controlling Flea Allergy Dermatitis (FAD).
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Treatment & Control of Major Tick Species: Kills Black-legged ticks (Ixodes scapularis), Brown dog ticks (Rhipicephalus sanguineus), American dog ticks (Dermacentor variabilis), and Lone Star ticks (Amblyomma americanum).
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Prevention of Heartworm Disease: Prevents heartworm disease caused by Dirofilaria immitis when administered monthly.
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Treatment & Control of Intestinal Nematodes: Clears adult roundworms (Toxocara canis, Toxascaris leonina) and hookworms (Ancylostoma caninum, Uncinaria stenocephala).
Recommended Administration and Dosing Protocols
To ensure optimal gastrointestinal absorption and complete 30-day broad-spectrum protection, NexGard PLUS must be administered orally once every month according to weight-based color packs.
Canine Dosage Band Reference Table
The table below outlines standard clinical dosing parameters for NexGard PLUS Chewables (Afoxolaner / Moxidectin / Pyrantel):
| Dog Body Weight Range | Pack Color Code | Active Afoxolaner | Active Moxidectin | Active Pyrantel | Administration Frequency |
| 4.0 to 8.0 lbs ($1.8 – 3.6\ \text{kg}$) | Blue | $9.375\ \text{mg}$ | $0.045\ \text{mg}$ | $18.75\ \text{mg}$ | Once every 30 days |
| 8.1 to 15.0 lbs ($3.7 – 6.8\ \text{kg}$) | Yellow | $18.75\ \text{mg}$ | $0.090\ \text{mg}$ | $37.5\ \text{mg}$ | Once every 30 days |
| 15.1 to 33.0 lbs ($6.9 – 14.9\ \text{kg}$) | Green | $37.5\ \text{mg}$ | $0.180\ \text{mg}$ | $75.0\ \text{mg}$ | Once every 30 days |
| 33.1 to 66.0 lbs ($15.0 – 29.9\ \text{kg}$) | Purple | $75.0\ \text{mg}$ | $0.360\ \text{mg}$ | $150.0\ \text{mg}$ | Once every 30 days |
| 66.1 to 132.0 lbs ($30.0 – 60.0\ \text{kg}$) | Red | $150.0\ \text{mg}$ | $0.720\ \text{mg}$ | $300.0\ \text{mg}$ | Once every 30 days |
Clinical Safety, Neurological Warnings, and Storage
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Neurological Class Warning: Afoxolaner is a member of the isoxazoline class. Isoxazolines have been associated with neurological adverse reactions, including muscle tremors, ataxia, and seizures. Use with caution in dogs with a history of seizures or neurological disorders.
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Minimum Age & Weight Limitations: NexGard PLUS is safe for use in dogs and puppies 8 weeks of age or older, weighing at least 4.0 lbs (1.8 kg).
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Reproductive Safety Notice: Safe use of NexGard PLUS in breeding, pregnant, or lactating dogs has not been evaluated.
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Adverse Reactions: The most common adverse reactions reported in clinical trials include diarrhea, vomiting, lethargy, anorexia, and mild skin itching.
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Storage Parameters: Store at controlled room temperature between 20°C and 25°C (68°F to 77°F), with excursions permitted up to 30°C (86°F). Protect from light and moisture.
Frequently Asked Questions (FAQ)
What is the primary difference between original NexGard and NexGard PLUS?
Original NexGard contains only afoxolaner, providing protection against fleas and ticks. NexGard PLUS adds moxidectin and pyrantel, expanding protection to prevent heartworm disease and treat/control intestinal roundworms and hookworms in a single chew.
Does NexGard PLUS need to be given with food?
No. NexGard PLUS is formulated as a highly palatable, real-beef flavored soft chew that can be administered with or without food. Most dogs accept the chew directly from the owner’s hand as a treat.
How fast does NexGard PLUS start killing fleas?
Afoxolaner absorbs rapidly after oral intake, beginning to kill adult fleas within 4 hours of administration and reaching over 99% flea kill efficiency within 8 to 12 hours.
Where can I buy genuine NexGard PLUS online?
You can safely purchase authentic, factory-sealed NexGard PLUS Chewable Tablets online through Vet Pharma Med. We manage our full inventory under strict environmental controls to guarantee absolute product quality and full therapeutic potency.
Secure Premium Sourcing from Vet Pharma Med
At Vet Pharma Med, we understand that providing complete companion animal care requires absolute product reliability. Every pack of NexGard Plus Chewable Tablets for Dogs is sourced through authorized veterinary distribution networks, stored in our climate-controlled facility, and shipped securely to ensure complete product quality.
For wholesale veterinary clinic accounts, prescription management support, or logistics tracking assistance, please reach out to our professional support desk directly at our contact us page.
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