Dog Medications

Here are oral and topical medications for flea, tick, and heartworm prevention in dogs, including isoxazoline-class chews such as NexGard, Bravecto, and Simparica, topical spot-ons such as Revolution and Advocate, and monthly heartworm preventatives such as Heartgard Plus and Valuheart. All products are available without a veterinary prescription and ship directly to customers in the U.S., Canada, UK and all other regions. Formulations are identical to those dispensed by U.S. veterinary clinics in terms of active ingredient, dosage, and manufacturing standard.

What You’ll Find in This Dog Collection

Products in this category are organized into two sub-categories based on target parasite class. Dosing across all products is weight-based; selecting the correct weight bracket before ordering is essential to avoid under- or overdosing.

Products available without a prescription through Anipetshop include:

• Flea and Tick Treatments for Dogs: covers oral chews and topical spot-ons targeting external parasites including fleas, ticks, and in some formulations, mites and lice. Each brand page lists active ingredients, duration of action, and applicable weight ranges.
• Heartworm Treatment and Prevention for Dogs: covers monthly oral and topical preventatives targeting Dirofilaria immitis larvae, with several formulations also covering intestinal roundworm, hookworm, and whipworm. These products do not treat established adult heartworm infection.

Can you buy dog medication without a prescription?

Yes, flea, tick, and heartworm medications for dogs can be purchased without a veterinary prescription through Anipetshop. This is possible because Anipetshop operates under an Australian pharmacy license, and Australia’s APVMA classifies these products as over-the-counter rather than prescription-only.

The FDA takes a different position, designating products like NexGard, Bravecto, and Heartgard Plus as prescription-only for U.S.-based dispensing. That classification reflects a regulatory difference between jurisdictions, not a difference in the product itself. The active ingredients, dosage levels, and manufacturing standards are identical to what U.S. veterinary clinics carry.

Dog Flea, Tick & Heartworm Medication Without a Prescription

Products are organized into two categories based on target parasite class.Within each category, each brand page lists active ingredients, formulation type, duration of action, and applicable weight ranges to help narrow the selection before ordering.

Flea and Tick Treatments for Dogs

Flea and Tick Treatments stocked include products from three distinct drug classes: oral chewables, topical spot-ons and collars, each using different active ingredient classes to kill or repel parasites. These medications available without a prescription through Anipetshop include:

• Nexgard
• Frontline Plus
• Seresto
• Bravecto
• Simparica

Dogs with a history of gastrointestinal sensitivity may tolerate topical spot-ons better than oral chews. Dogs with skin conditions or coat sensitivities may respond differently to topical formulations. Consult a veterinarian if your dog has a history of either before selecting a format.

Heartworm Treatment and Prevention for Dogs

Heartworm Treatment and Prevention work by eliminating larval-stage Dirofilaria immitis (L3 and L4) deposited during the preceding dosing interval. They do not kill adult heartworms. A dog with an active heartworm infection should not receive a preventative without veterinary assessment, as rapid larval die-off in a heavily infected dog can cause a serious adverse reaction.

Heartworm preventatives available without a prescription through Anipetshop include:

• Heartgard Plus
• Simparica Trio
• NexGard Spectra
• Credelio Plus
• Revolution
• Stronghold
• Advocate
• Valuheart

Dogs should be tested for existing heartworm infection before starting any preventative. Administering a preventative to a heartworm-positive dog can trigger a systemic reaction as dying microfilariae enter the bloodstream. If your dog has not been tested recently, consult a veterinarian before placing an order.

How to Choose the Right Dog Parasite Medication

Selecting the correct product requires matching three variables: the parasite target, the dog’s current weight, and the appropriate delivery format. Choosing based on any one variable alone without checking the others increases the risk of selecting an ineffective or incorrectly dosed product.

Step 1: Identify the Target Parasite

Active infestation and prevention require different products, and some formulations cover both.

• Visible fleas, flea dirt, or ticks on the coat indicate an active infestation requiring a fast-acting adulticide.
• Heartworm prevention should begin before exposure, as preventatives eliminate incoming larvae but do not treat established adult infection.

Products such as Advocate, Revolution, and Simparica Trio cover multiple parasite classes in a single monthly dose.

Step 2: Confirm Weight and Age Before Ordering

Weigh your dog the week you place the order, not from memory. Most products are dosed by weight bracket, and administering a dose formulated for a larger weight range to a smaller dog increases active ingredient concentration beyond the labeled safety threshold.

Most products are approved for use in puppies from 8 weeks of age; check the individual product label for minimum age requirements before ordering for young dogs.

Step 3: Select the Delivery Format

Three delivery formats are available across this category, each with distinct clinical and practical considerations:

Format	Appropriate For	Key Clinical Consideration
Oral chews	Dogs that tolerate ingestion; active dogs, swimmers	Systemic absorption; efficacy not affected by bathing or water exposure
Topical spot-on	Dogs with swallowing difficulties or GI sensitivity	Spreads via sebaceous glands; requires skin contact time before bathing
Collar	Dogs requiring extended-duration coverage	Releases active compound continuously; up to 8 months for Seresto

If your dog has a seizure history, skin conditions, or is on concurrent medications, consult a veterinarian before selecting a format or brand.

Why choose Anipetshop for dog medication without prescription?

Anipetshop operates under an Australian pharmacy license issued under APVMA regulations, which permits direct supply of flea, tick, and heartworm medications to customers in the U.S., Canada, and UK without a veterinary prescription. Products are sourced from licensed manufacturers across Australia, Europe, South Africa, and the United States. No generics or substitute formulations are carried; every product matches the brand, active ingredient, and dosage specification on the label.

Specific sourcing and supply standards that apply to all orders:

• English labeling: All products ship with English-language labeling, including dosing instructions, active ingredient disclosure, and weight range specifications.
• Expiration dating: Products are supplied with sufficient shelf life remaining to complete a full treatment course at time of delivery.
• Formulation equivalence: Active ingredients, dosage levels, and manufacturing standards are identical to products dispensed by U.S. veterinary clinics. Regulatory classification differs by jurisdiction; the compound does not.