NexGard Spectra Chewables for Medium Dogs 16.6–33 lbs (7.6–15 kg) – Green

NexGard Spectra Chewables for Medium Dogs 16.6–33 lbs (7.6–15 kg) – Flea, Tick & Heartworm Prevention (Green)

NexGard Spectra Chewables for Medium Dogs deliver complete monthly parasite protection in a single beef-flavored chew. Combining afoxolaner and milbemycin oxime, NexGard Spectra (Green) protects medium dogs weighing 16.6–33 lbs (7.6–15 kg) against fleas, ticks, heartworm, and the most common intestinal worms — six parasites covered with one chew, once a month.

What NexGard Spectra Protects Against

• Fleas: Kills adult fleas before they reproduce, breaking infestations fast.
• Ticks: Controls black-legged (deer), American dog, lone star, and brown dog ticks.
• Heartworm: Prevents heartworm disease (transmitted by infected mosquitoes).
• Roundworm, hookworm, and whipworm: Treats the three most common intestinal worms.

Why Medium-Dog Owners Choose NexGard Spectra

• Three products in one: Skip the separate flea chew, heartworm pill, and wormer — NexGard Spectra covers all three.
• One chew a month: Simple monthly routine, beef-flavored, taken like a treat.
• No mess, no waiting: No topical residue means bathing, swimming, and family time can resume immediately.
• Right size for medium breeds: The Green pack is dosed for 16.6–33 lbs — don’t split or substitute across sizes.
• Trusted by vets worldwide: NexGard Spectra is manufactured by Boehringer Ingelheim, one of the largest animal health companies globally.

How NexGard Spectra Works

NexGard Spectra uses two active ingredients that complement each other:

• Afoxolaner: Absorbed into the bloodstream and ingested by fleas and ticks when they bite. Kills systemically, with no skin or coat application needed.
• Milbemycin oxime: Eliminates immature heartworm larvae before they can mature, and treats adult intestinal worms (roundworm, hookworm, whipworm).

Who It’s For

• Medium dogs weighing 16.6–33 lbs (7.6–15 kg)
• Puppies and adult dogs 8 weeks of age and older
• Healthy dogs without a history of seizures (consult your vet if your dog has a seizure history)

How to Give NexGard Spectra

1. Give one Green chew per month, on the same date each month.
2. Offer directly as a treat, or with food.
3. Make sure your dog chews and swallows the full dose.
4. Year-round dosing is essential — gaps in coverage can let heartworm larvae mature.

Possible Side Effects

NexGard Spectra is well tolerated by most dogs. Mild, short-lived side effects can include vomiting, diarrhea, itching, lethargy, or reduced appetite. Contact your veterinarian if anything persists.

Product Details

• Brand: NexGard Spectra (Boehringer Ingelheim)
• For: Dogs
• Weight range: 16.6–33 lbs (7.6–15 kg)
• Pack color: Green
• Form: Beef-flavored soft chew (oral)
• Active ingredients: Afoxolaner + Milbemycin oxime
• Minimum age: 8 weeks
• Pack sizes available: 3 Chews or 6 Chews
• Coverage: Fleas, ticks, heartworm, roundworm, hookworm, whipworm

Frequently Asked Questions

Is Green the right pack for a Beagle, Border Collie, or French Bulldog?
Most adult Beagles, Border Collies, French Bulldogs, Cocker Spaniels, and similar medium breeds fall within the Green range (16.6–33 lbs). Weigh your dog to confirm — if they’re over 33 lbs, switch to the Purple pack.

Does NexGard Spectra really replace 2–3 separate products?
Yes. A medium-dog owner using NexGard Spectra typically replaces: (1) a separate flea/tick chew, (2) a heartworm tablet or chew, and often (3) a quarterly all-wormer. One chew a month covers all three jobs.

Which intestinal worms does NexGard Spectra cover?
NexGard Spectra treats roundworm (Toxocara canis, Toxascaris leonina), hookworm (Ancylostoma caninum, Uncinaria stenocephala), and whipworm (Trichuris vulpis). It does not treat tapeworm — if your dog has tapeworm exposure, a separate wormer is needed.

What if my dog vomits a few hours after taking the chew?
If your dog vomits within 2 hours of dosing, give a replacement chew — the dose was likely lost. If vomiting happens later than that, the active ingredients have already been absorbed and a replacement isn’t needed. Contact your vet if vomiting is unusual or persistent.

Do I need a prescription to buy NexGard Spectra?
No — SmartWay Pet Supplies ships NexGard Spectra over the counter to customers across the US and Canada. No prescription or vet authorization required at checkout.

How long does one chew protect my dog?
One NexGard Spectra chew provides a full 30 days of flea, tick, heartworm, and intestinal worm protection. Continuous monthly dosing is needed for ongoing coverage — especially for heartworm, where missed doses can be dangerous.

Helpful Links

• Shop the full NexGard Spectra range
• NexGard Spectra size guide (lbs ↔ kg chart)

Fast shipping across the US & Canada — no prescription required. Use only as directed on the packaging. Information provided for general reference; speak with your veterinarian for medical advice specific to your dog.