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Monoclonal antibody (anti-NGF) · For Dogs

Librela dosage reference for dogs (Bedinvetmab)

This page's standard weight-based reference is 0.7 mg per kg (0.32 mg per lb), with Once monthly (injection by veterinarian) recorded as the reference frequency. Use the calculator to see the arithmetic for your dog's weight, then confirm the indication, product, and actual dose with a veterinarian.

Onset
1-2 weeks
Duration
4 weeks
Class
Monoclonal antibody (anti-NGF)

Weight-based calculator estimate from the references listed on this page. This page has not been independently DVM-reviewed — see our methodology .

This information is for educational purposes only. Always consult your veterinarian before giving medication to your pet. Do not use this calculator for emergencies, overdoses, pregnancy, very young animals, very old animals, pets with liver/kidney disease, or pets taking multiple medications.

Each medication page lists the references recorded for its data. The calculator math and editorial presentation are maintained by PetDosageChart; a page is independently DVM-reviewed only when a named reviewer byline appears. See our methodology and limitations.

Bedinvetmab (often known by brand names such as Librela) is a monoclonal antibody (anti-NGF) commonly used in veterinary medicine for Osteoarthritis pain, Chronic joint pain, and Degenerative joint disease. Understanding the correct dosage, administration, and potential side effects of Bedinvetmab is critical for your dog’s safety and well-being.

A typical Bedinvetmab dose for dogs is around 0.7 mg/kg Once monthly (injection by veterinarian), within a usual range of 0.5-1 mg/kg. Available forms include Injectable.

Calculator Warning: Use this only as an educational estimate. Your veterinarian may prescribe a different dose based on your pet’s condition, age, weight, other medications, and medical history.

Bedinvetmab Dosage Calculator for Dogs

Enter your dog’s weight below to estimate the Bedinvetmab dose from the 0.7 mg/kg guideline. Your veterinarian may adjust it for your dog’s age, condition, and other medications, so treat the result as an educational starting point, not a prescription.

Dosage Calculator · 01

Enter your dog's weight

Quick Dosage Chart

Typical Bedinvetmab amounts for common dog weights, for quick reference:

Dosage Chart · 02

Librela weight-based reference chart for dogs

Scroll sideways to see full table

Weight Lower Reference Standard Reference Upper Reference Frequency
5 lbs (2.3 kg) 1.1 mg 1.6 mg 2.3 mg Once monthly (injection by veterinarian)
10 lbs (4.5 kg) 2.3 mg 3.1 mg 4.5 mg Once monthly (injection by veterinarian)
15 lbs (6.8 kg) 3.4 mg 4.8 mg 6.8 mg Once monthly (injection by veterinarian)
20 lbs (9.1 kg) 4.5 mg 6.4 mg 9.1 mg Once monthly (injection by veterinarian)
25 lbs (11.3 kg) 5.7 mg 7.9 mg 11.3 mg Once monthly (injection by veterinarian)
30 lbs (13.6 kg) 6.8 mg 9.5 mg 13.6 mg Once monthly (injection by veterinarian)
40 lbs (18.1 kg) 9.1 mg 12.7 mg 18.1 mg Once monthly (injection by veterinarian)
50 lbs (22.7 kg) 11.3 mg 15.9 mg 22.7 mg Once monthly (injection by veterinarian)
60 lbs (27.2 kg) 13.6 mg 19.0 mg 27.2 mg Once monthly (injection by veterinarian)
70 lbs (31.7 kg) 15.8 mg 22.2 mg 31.7 mg Once monthly (injection by veterinarian)
80 lbs (36.3 kg) 18.1 mg 25.4 mg 36.3 mg Once monthly (injection by veterinarian)
90 lbs (40.8 kg) 20.4 mg 28.6 mg 40.8 mg Once monthly (injection by veterinarian)
100 lbs (45.4 kg) 22.7 mg 31.8 mg 45.4 mg Once monthly (injection by veterinarian)
120 lbs (54.4 kg) 27.2 mg 38.1 mg 54.4 mg Once monthly (injection by veterinarian)
150 lbs (68 kg) 34.0 mg 47.6 mg 68.0 mg Once monthly (injection by veterinarian)

Parenthetical tablet amounts are arithmetic comparisons only. They do not account for scoring, release type, concentration, product labeling, or whether this medication is appropriate for an individual animal.

By Weight

Librela reference by dog weight

Choose a common weight to open its optional reference page. Use the main medication calculator for a different exact weight.

Common-weight pages are convenience views of the same educational reference, not separate medical recommendations.

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How to Give Bedinvetmab to Your Dog

Librela is administered as a subcutaneous injection by your veterinarian only. It cannot be given at home. The dose is calculated based on your dog’s body weight. Schedule monthly vet appointments for ongoing treatment. No fasting or special preparation is needed before the appointment. After injection, your dog can resume normal activities. Monitor for improved mobility over the following 1-2 weeks.

It may interact with NSAIDs (can be used together but monitor closely), Generally very few drug interactions, and Can be combined with most other medications.

Side Effects and Safety

Common side effects include Injection site reactions, Mild lethargy, Increased thirst, and Urinary tract infections. More serious side effects can occur, such as Worsening of neurological conditions, Anaphylaxis (very rare), Rapidly progressing joint disease (rare), and Severe dermatological reactions.

Cautions · 12

When Librela should be used with caution or avoided

Some dogs should not take Librela, or need a different dose and closer monitoring. Tell your veterinarian about your pet's full health history and every other medication or supplement they take before giving Librela.

  • Known hypersensitivity to bedinvetmab
  • Dogs intended for breeding
  • Neurological pain conditions

Interactions · 13

Librela drug interactions

Librela can interact with other drugs. This list is not complete — always give your veterinarian a full list of your dog's medications and supplements.

NSAIDs (can be used together but monitor closely)
Generally very few drug interactions
Can be combined with most other medications

Calculator Limits · 14

When not to use this calculator

This calculator gives a general educational estimate for a healthy adult dog at a known weight. Do not rely on it in these situations — talk to your veterinarian instead:

  • In an emergency, or after accidental ingestion or a suspected overdose
  • For pregnant or nursing pets
  • For very young or very old dogs
  • For pets with liver disease, kidney disease, or another chronic illness
  • For pets taking several medications at once
  • When you are not sure of your dog's current, accurate weight
  • For combination products that contain additional active ingredients

Overdose · 15

Suspected overdose: what to do

If you think your dog had too much Librela, or swallowed any medication by accident, act right away. Do not wait for symptoms to appear.

  • Call your veterinarian or the nearest emergency animal hospital.
  • ASPCA Animal Poison Control Center: (888) 426-4435
  • Pet Poison Helpline: (855) 764-7661

A consultation fee may apply to the poison hotlines. Have the medication packaging ready, and note how much your pet may have taken and when. Do not try to make your pet vomit unless a veterinarian tells you to.

When to Call the Vet

If your dog experiences any of the following, contact your veterinarian or an emergency clinic immediately:

Frequently Asked Questions

Frequently Asked · 07

Questions about this medication

How does Librela work for arthritis pain?
Librela contains bedinvetmab, a monoclonal antibody that targets and neutralizes nerve growth factor (NGF), a key protein involved in osteoarthritis pain signaling. By blocking NGF, Librela reduces pain at its source without the gastrointestinal or kidney side effects associated with traditional NSAIDs.
How is Librela different from NSAIDs like carprofen or meloxicam?
Unlike NSAIDs that work by blocking inflammation enzymes (COX) and can affect the stomach, kidneys, and liver, Librela targets pain signaling specifically through NGF. This means it can be used in dogs with kidney or liver concerns where NSAIDs would be risky. It is given as a monthly injection rather than daily pills.
How quickly will I see improvement with Librela?
Most dogs show noticeable improvement in mobility and comfort within 1-2 weeks of the first injection. Some dogs may take 2-3 injections (months) to achieve full benefit. Improvement is often seen as increased activity, willingness to walk, and easier rising.
Can Librela be used alongside other arthritis treatments?
Yes, Librela can generally be combined with other treatments including joint supplements (glucosamine, omega-3s), physical therapy, and in some cases NSAIDs under veterinary supervision. This multimodal approach often provides the best pain management.
Is Librela safe for long-term use?
Clinical studies have shown Librela to be well-tolerated over extended periods. Since it does not affect the liver, kidneys, or GI tract like NSAIDs, it offers a favorable long-term safety profile. Regular veterinary check-ups are still recommended to monitor overall joint health and treatment response.

Use This Guide Safely · 08

What weight alone cannot tell you

The calculator performs one narrow job: it multiplies your dog's weight by the lower, standard, and upper mg/kg values recorded for Librela. It cannot decide whether this drug, indication, formulation, or schedule is appropriate for an individual animal.

Context in this medication record

Commonly listed uses
Osteoarthritis pain, Chronic joint pain, Degenerative joint disease
Recorded forms
Injectable
Reference timing
Once monthly (injection by veterinarian); onset 1-2 weeks; duration 4 weeks

Individual checks a calculator cannot perform

  • Confirm the diagnosis and the reason this medication is being considered.
  • Match the exact product, concentration, route, and whether a tablet may be split.
  • Account for age, pregnancy, organ function, genetics, allergies, and prior reactions.
  • Review every prescription, over-the-counter product, and supplement your pet takes.

Recorded cautions

Known hypersensitivity to bedinvetmab; Dogs intended for breeding; Neurological pain conditions.

Recorded interactions

NSAIDs (can be used together but monitor closely); Generally very few drug interactions; Can be combined with most other medications.

These lists reproduce the structured record used by this page and may not be exhaustive. Show your veterinarian the product label and your dog's complete medication list before acting on a number.

Related · 08

Related medications for dogs

Sources · 09

Sources & references

The structured medication record behind this page names the references below. The links open the publisher or official resource; they do not turn this page into a prescription for an individual animal.

Source names are shown at the record level; passage-level page and label citations are still being added. Read our methodology and limitations.

Transparency · 11

How this page was made

This page's structured medication record includes Plumb's Veterinary Drug Handbook among its source names. PetDosageChart applies the record's mg/kg values to the entered weight and presents the arithmetic result. A source record is not the same as an individualized prescription or an independent clinical review.

Sources cited
  • Plumb's Veterinary Drug Handbook
  • Merck Veterinary Manual
Calculator formula
Doses scale linearly from a standard basis of 0.7 mg per kg (0.32 mg per lb) of body weight, given Once monthly (injection by veterinarian). The calculator multiplies that basis by your dog's weight and shows an arithmetic comparison with recorded tablet sizes. That comparison does not determine whether a tablet is scored, splittable, or appropriate for your pet.
Editorial owner
Prepared and maintained by the PetDosageChart editorial team, a software-led publisher and not a veterinary practice.
DVM review status
Not independently DVM-reviewed. A named reviewer and review date appear here only after a confirmed review.

More on our methodology and editorial process — how we source, calculate, and review dogs dosage data.

Safety · 10

More resources