NexGard Spectra® is a prescription only medicine. This site is provided as an information service for veterinary professionals working in the UK. Please tick ‘I’m a veterinary professional’ to confirm that you are a veterinary professional working in the UK (e.g. veterinary surgeon, veterinary nurse or veterinary student).
Making risk assessment easy
Parassess® is a fast, easy way for owners to understand their pet’s individual risk. This free online tool collects key lifestyle and behaviour information in just a few minutes and generates a personalised report for owners to discuss with you.
NexGard SPECTRA® makes parasite protection easy for pet owners
- Easy-to-give, tasty chew
- Broad-spectrum protection
- Simple monthly intervals
- Can be given with or without food
- Confidence the entire dose has been received
- Immediate handling
- No restrictions on shampooing or swimming
Taste Warranty
NexGard SPECTRA® is a tasty chew, and we know 9 out of 10 dogs prefer it.*1,2 We’re confident pet owners and dogs will find it easy to give.
If a healthy dog in the UK or Ireland refuses to take NexGard SPECTRA® on the first occasion they are offered it and they:
- Have not received it before
- Discussed case with Veterinary Technical Services
- Can supply details of purchase
- It was purchased from veterinary practice
Boehringer Ingelheim will provide like for like free of charge to practice, to cover refund to owner. Terms and conditions apply (available on request from Boehringer Ingelheim).
- *9 out of 10 dogs that demonstrated a preference in the studies preferred NexGard SPECTRA®
- Perier N, Carithers DS, Everett WR, et al. Preference of dogs between two oral formulations of endectoparasiticides: NexGard SPECTRA® (afoxolaner and milbemycin oxime) and Simparica Trio (sarolaner, moxidectin and pyrantel). Open J Vet Med. 2020;10:155–163.
- Perier N, Carithers DS, Everett WR, et al. Preference in dogs of two oral endectoparasiticide formulations: NexGard SPECTRA® (afoxolaner and milbemycin oxime) and Credelio® Plus (lotilaner and milbemycin oxime). Open J Vet Med. 2021;11:289–298.
Easy-to-give,
tasty chew
Simple, convenient,
monthly dosing
Can be given with
or without food
Confidence the
entire dose has
been received
Immediate
handling
No restrictions on
shampooing or
swimming
NexGard SPECTRA® is also suitable for all dogs and practices
Explore the latest...
Owner materials
Handy resources, like posters for your veterinary practice, and materials to support your client communications.
Puppy campaign
Engage with new puppy owner clients, helping to keep their new family member happy and healthy while building a lifelong connection with your practice.
Introducing Parassess®
A FREE online, easy-to-use parasite risk checker that helps owners to help you assess their dog’s individual risk. Enables a timely, risk-based prescribing decision in your busy practice.
- Owner materials
- Puppy campaign
- Parassess risk checker
NexGard SPECTRA® contains afoxolaner and milbemycin oxime. UK: POM-V IE: POM. Further information available in the SPC or from Boehringer Ingelheim Animal Health UK Ltd., RG12 8YS, UK. UK Tel: 01344 746959 (sales) or 01344 746957 (technical). IE Tel: 01 291 3985 (all queries). Email: vetenquiries@boehringer-ingelheim.com. NexGard SPECTRA® is a registered trademark of Boehringer Ingelheim Animal Health France SCS, used under licence. ©2026 Boehringer Ingelheim Animal Health UK Ltd. All rights reserved. Date of preparation: Feb 2026. UI-PET-0373-2025. Use Medicines Responsibly.
Prescription decisions are for the person issuing the prescription alone.