What Is Cytopoint and What Does It Treat?
Cytopoint is a prescription medication used to control itching in dogs with allergic skin disease. Its active ingredient is lokivetmab, and it represents a modern, targeted approach to one of the most common and frustrating problems in dogs — relentless allergic itch.
Cytopoint is not a conventional drug; it is a monoclonal antibody. Lokivetmab is a caninised monoclonal antibody engineered to target a specific protein called interleukin-31 (IL-31). IL-31 is a key chemical messenger that transmits the sensation of itch to the brain in dogs with allergic skin disease. Cytopoint works by binding to and neutralising IL-31, switching off the itch signal at its source.
Because it is an antibody — essentially a very targeted protein — Cytopoint has a notably clean safety profile: it is not processed by the liver or kidneys like conventional drugs, and it is broken down and recycled like the body’s own antibodies. It is used for the itch of atopic dermatitis and other allergic skin disease.
For owners, Cytopoint’s appeal is its convenience and gentleness: it is a single subcutaneous injection given roughly once a month (every 4–8 weeks) by a veterinarian, with no daily tablets. It often takes effect within a day or two.
Two honest points: Cytopoint controls the itch but does not cure the underlying allergy, and it works best as part of a complete plan. Use the calculator above to understand the weight-band dosing, but Cytopoint must be prescribed and administered by a veterinarian. For more, see PuppaDogs’ guide to Cytopoint for dogs.
How the Cytopoint Dosage Calculator Works
Like some other modern injectables, Cytopoint is not dosed by an exact per-kilogram amount — it uses fixed weight bands with pre-measured vials. The calculator:
- Places your dog in the correct weight band.
- Shows the vial strength(s) to be used and the total dose.
- Confirms the subcutaneous, every-4-to-8-week schedule.
- Notes the minimum weight and hypersensitivity caution.
Enter your dog’s weight, tick any health considerations, then press Find Weight Band.
How Cytopoint Doses Are Calculated for Dogs
The Minimum Dose and Schedule
The minimum target dose of Cytopoint is around 1–2 mg/kg of body weight, given by subcutaneous injection every 4–8 weeks. To deliver this conveniently, Cytopoint is supplied in four vial strengths — 10, 20, 30 and 40 mg (each a 1 mL vial) — and dogs are assigned to a weight band.
The Weight-Band Dosing Table
| Dog body weight | Cytopoint dose | Vial(s) used |
|---|---|---|
| 3–10 kg (6.6–22 lb) | 10 mg | one 10 mg vial |
| 10.1–20 kg (22–44 lb) | 20 mg | one 20 mg vial |
| 20.1–30 kg (44–66 lb) | 30 mg | one 30 mg vial |
| 30.1–40 kg (66–88 lb) | 40 mg | one 40 mg vial |
| 40.1–50 kg (88–110 lb) | 50 mg | one 40 mg + one 10 mg vial |
| 50.1–60 kg (110–132 lb) | 60 mg | one 40 mg + one 20 mg vial |
| 60.1–70 kg (132–154 lb) | 70 mg | one 40 mg + one 30 mg vial |
| 70.1–80 kg (154–176 lb) | 80 mg | two 40 mg vials |
Cytopoint is not recommended for dogs weighing less than 3 kg (about 6.6 lb).
How Cytopoint Is Given and What to Expect
- Route: Cytopoint is given as a subcutaneous injection by your veterinarian — it is not a home medication.
- Frequency: roughly every 4–8 weeks. Some dogs need it monthly; others go longer between injections. Your vet judges the interval for your individual dog.
- Speed: Cytopoint often reduces itching within 24–48 hours, giving fast relief to a dog that has been scratching and chewing.
- Discuss the response with your vet before each injection — if it is helping well, treatment continues; if not, your vet may re-examine the diagnosis or adjust the plan.
Side Effects and Safety
Cytopoint has an excellent safety record and is generally very well tolerated, which is one of its main advantages — particularly for older dogs, or dogs where other anti-itch medications are difficult to use. Because it is a targeted antibody, it does not carry the organ-related cautions of many conventional drugs.
The main consideration, as with any injectable protein, is the small possibility of a hypersensitivity reaction. Tell your veterinarian about any facial swelling, hives, vomiting, lethargy or unusual signs following an injection. Cytopoint should not be used in a dog with a known hypersensitivity to lokivetmab.
Cytopoint Is Part of an Allergy Plan
Cytopoint is excellent at switching off the *itch* — but the allergy itself remains. The best long-term results come from a complete plan: thorough flea control, good skin and coat care, treatment of any secondary skin or ear infections, and, where appropriate, identifying what the dog is allergic to. Your veterinarian may also discuss other treatments — Cytopoint is sometimes compared with, or used alongside, the oral medication Apoquel; PuppaDogs’ Apoquel dosage calculator covers that option.
Conclusion
Cytopoint (lokivetmab) is a modern, well-tolerated, monthly injection that controls the itch of canine allergic skin disease by neutralising the itch-signalling protein IL-31. It is dosed by fixed weight bands — for example a 10 mg vial for dogs 3–10 kg, or a 20 mg vial for 10.1–20 kg — delivering a minimum of about 1 mg/kg every 4–8 weeks. The calculator above shows which band and vial apply to your dog. Because it is a prescription injection given by a veterinarian, and because it controls the itch rather than curing the allergy, use it as one part of a complete, vet-guided allergy-management plan.
Frequently Asked Questions
How is Cytopoint dosed for dogs?
Cytopoint (lokivetmab) is dosed by fixed weight bands rather than an exact per-kilogram amount, delivering a minimum of about 1-2 mg/kg by subcutaneous injection every 4-8 weeks. For example, a dog of 3-10 kg receives a 10 mg vial, and a dog of 10.1-20 kg receives a 20 mg vial.
How often does my dog need a Cytopoint injection?
Cytopoint is given roughly every 4-8 weeks. Some dogs need it about monthly, while others can go longer between injections. Your veterinarian judges the right interval for your individual dog based on how long the itch relief lasts.
How quickly does Cytopoint work?
Cytopoint often works quickly, reducing allergic itch within about 24-48 hours of the injection. This gives fast relief to a dog that has been scratching, licking and chewing, and the effect of one injection typically lasts several weeks.
Is Cytopoint safe for dogs?
Cytopoint has an excellent safety record and is generally very well tolerated, which makes it a good option for older dogs or dogs where other anti-itch medications are hard to use. Because it is a targeted antibody, it does not carry many of the organ-related cautions of conventional drugs. Hypersensitivity reactions are possible but uncommon.
Does Cytopoint cure allergies in dogs?
No. Cytopoint very effectively controls the itch of allergic skin disease, but it does not cure the underlying allergy, which is still present. It works best as part of a complete plan that includes flea control, skin care, treating secondary infections, and where appropriate identifying what the dog is allergic to.
Can small dogs have Cytopoint?
Cytopoint can be used in dogs weighing 3 kg (about 6.6 lb) or more, with a 10 mg vial covering the 3-10 kg band. It is not recommended for dogs under 3 kg – for a very small dog, your veterinarian will advise on the most suitable itch treatment.
Related PuppaDogs Calculators
Continue building your dog’s personalised care plan with these related PuppaDogs calculators:
- Dog Pregnancy / Whelping Due-Date Calculator
- Puppy Weight Predictor (Adult Weight Calculator)
- Heatstroke Risk Calculator for Dogs
- Bloat (GDV) Risk Calculator for Dogs
- Dog Life Expectancy Calculator (Breed, Body Condition, Lifestyle)
- Spay/Neuter Timing Calculator for Dogs (Breed-Specific)
References & Further Reading
The dosing ranges and safety information on this page are drawn from the following veterinary references. Always defer to your own veterinarian and the manufacturer’s label for your specific product.
- Cytopoint (lokivetmab) – FDA-approved veterinary label and prescribing information; European Medicines Agency summary of product characteristics, Zoetis.
- Plumb DC. Plumb’s Veterinary Drug Handbook. 10th ed. Hoboken, NJ: Wiley-Blackwell, 2023 – lokivetmab monograph.
- Merck Veterinary Manual. Atopic dermatitis in dogs; anti-IL-31 monoclonal antibody therapy. merckvetmanual.com.
- Olivry T, et al. International Committee on Allergic Diseases of Animals (ICADA) – treatment guidelines for canine atopic dermatitis.
- PuppaDogs. Cytopoint for Dogs: Benefits, Dosage, Side Effects, and More. puppadogs.com.
