NexGard Spectra is a veterinary prescription-only monthly chewable for dogs which treats fleas, ticks, worms, lungworm and heartworm. Valid UK prescription required.
All orders require review by a licensed veterinarian.Please allow 1–2 working days for processing.
NexGard Spectra is a monthly chewable tablet prescribed by veterinarians for dogs. It provides complete protection against internal and external parasites in one convenient dose. The formula combines afoxolaner and milbemycin oxime, two proven ingredients that target fleas, ticks, mites, lungworm, and intestinal worms.
Because it’s a single, tasty chewable, owners no longer need separate flea and worm treatments. Dogs find it easy to take, and consistent monthly use ensures long-lasting protection against a wide range of parasites.
Roundworm, hookworm, whipworm and other intestinal parasites
Mange mites (Demodex canis, Sarcoptes scabiei)
With a single tablet, dogs gain continuous protection for an entire month. Regular use also helps reduce environmental flea infestations, as adult fleas are killed before they can lay eggs.
How NexGard Spectra Works
The key ingredients act in different ways to give broad coverage:
Afoxolaner attacks fleas, ticks, and mites by overstimulating their nervous system, leading to rapid death.
Milbemycin oxime eliminates internal worms by interfering with their nerve transmission.
These two compounds work together to break the parasite life cycle and keep your dog safe from both visible and hidden threats.
Dosage and Administration
Give one chewable tablet once a month according to your dog’s body weight. Always follow your vet’s instructions.
Dog Weight (kg)
Tablet Strength (Afoxolaner/Milbemycin Oxime)
Xsmall 2–3.5 kg
9 mg / 2 mg
Small 3.5–7.5 kg
19 mg / 4 mg
Medium 7.5–15 kg
38 mg / 8 mg
Large 15–30 kg
75 mg / 15 mg
Xlarge 30–60 kg
150 mg / 30 mg
The tablet can be given with or without food. However, giving it with food may improve absorption and reduce the chance of stomach upset. If a dose is missed, give it as soon as possible and resume the monthly schedule.
Treatment Recommendations
Use NexGard Spectra all year round for full protection. Start before peak flea season and continue monthly to prevent gaps in coverage. In areas where lungworm or heartworm is common, maintain strict monthly dosing. Puppies can start treatment from 8 weeks old and weighing at least 1.35 kg.
Precautions and Warnings
This product is a Prescription Only Medicine (POM-V). It can only be supplied once a valid veterinary prescription has been received. Do not use NexGard Spectra in dogs under 8 weeks of age or those weighing less than 1.35 kg. Safety has not been established in pregnant, lactating, or breeding dogs. Possible side effects are rare but can include mild vomiting, diarrhoea, or loss of appetite. Very rarely, neurological signs such as tremors or uncoordinated movement may occur. Always consult your vet if you notice any unusual behaviour or symptoms after treatment.
Storage and Shelf Life
Store in the original blister pack at a temperature below 25°C. Keep the packaging dry and away from direct sunlight. Do not use the tablets after the expiry date printed on the pack. Dispose of unused or expired tablets responsibly through your vet or local pharmacy.
Why Choose NexGard Spectra from Pet Med Direct
At Pet Med Direct, we only supply genuine, UK-authorised veterinary medicines. Every order is checked against your vet’s prescription before it’s dispatched. Our team handles all products carefully to ensure they arrive in perfect condition. We offer fast, tracked UK delivery and professional support from staff experienced in veterinary supply.
Ordering from us means peace of mind, quality assurance, and expert service every time.
Frequently Asked Questions
How quickly does NexGard Spectra start working? Fleas start dying within a few hours of dosing, and full protection lasts for one month.
Can it be used alongside other medications? Always inform your vet of any treatments your dog is taking. NexGard Spectra is usually compatible with vaccines and most common medications.
Is NexGard Spectra suitable for puppies? Yes, as long as they are at least 8 weeks old and weigh more than 1.35 kg.
Can it be given with food? Yes. In fact, giving it with a meal may help improve absorption.
What happens if I miss a dose? Give the missed dose immediately and continue monthly dosing from that date onward.
Does my dog still need a flea spray or collar? No. NexGard Spectra provides complete flea and tick protection. However, you should still clean bedding and household areas to remove eggs and larvae.
Summary
NexGard Spectra provides broad, complete parasite protection for dogs in a single monthly chewable tablet. It kills fleas and ticks, prevents worms and lungworm, and controls mites with proven reliability. Easy to administer and vet-approved, it’s the trusted choice for all-round parasite prevention.
Prescription Required
Prescription Required
Prescription Required