Best Continuous Delivery Allergy Immunotherapy Programmes for Dogs in the UK (2026) — Vet-Approved Treatments, Pricing Guidance, and Expert Recommendations

Nextmune UK sits at the top for clinician-backed immunotherapy in the 2026 UK market thanks to a broad, well-validated allergen library and a subscription model that includes vet-led dose adjustments and predictable monthly billing. It trades a slightly higher price for stronger peer-reviewed efficacy data and streamlined automatic refills, outperforming smaller labs on clinical evidence and outperforming some competitors on scale and turnaround.

Artuvet is a market-leading, cost-conscious option that combines clinician oversight with tiered subscription plans, making it a go-to for practices balancing efficacy and budget. While its allergen panel is not as extensive as Nextmune's, Artuvet often undercuts larger providers on per-refill cost and offers faster subscription onboarding, delivering strong value for clinics focused on affordability without sacrificing veterinary guidance.

Avacta leverages advanced biologics and proprietary binding technologies to provide a technically sophisticated desensitisation service that can reduce adverse reactions and extend intervals between refills. Clinician-backed and R&D-driven, Avacta typically has higher upfront costs than extract-based services but can offer long-term savings through reduced medication needs and lower complication rates, making it attractive for complex or multi-sensitised patients compared with extract-only options.

Heska UK focuses on in-practice convenience and integration with clinic diagnostic platforms, offering fast same-day dispensing and a familiar vet-support network that many clinicians prefer. It generally provides competitive per-refill pricing and excellent logistics for busy clinics, though its allergen breadth is narrower than Nextmune's and its long-term outcome data is less extensive than Avacta's.