Lenivia, Librela or Natur – Which osteoarthritis treatment is right for your dog?
Your dog has osteoarthritis. The vet recommends an injection. That evening, you Google ‘Librela side effects’ and find horror stories. Then you read about Lenivia – a new injection that’s only needed every three months. And then there are the natural alternatives. What really helps? What’s harmful? And what’s right for your dog?
TL;DR
- Librela is a monthly injection for osteoarthritis pain – effective, but increasingly controversial due to side effects
- Lenivia (Izenivetmab) is new on the market and lasts for up to three months – fewer injections, similar mechanism of action
- Natural supplements containing green-lipped mussel, MSM and devil’s claw take longer to work, but have no known serious side effects
- The best solution is often a combination – or deliberately avoiding injections if natural remedies are sufficient
What happens in the joint when you have osteoarthritis?
Before you decide on a treatment, it helps to understand what happens in the joint. Osteoarthritis means the cartilage wears away. Bone rubs against bone. This is painful and leads to inflammation.
Your dog shows this in his own way. He gets up more slowly in the morning. He avoids stairs. He no longer walks as far as he used to. Perhaps he limps after a walk.
Every osteoarthritis treatment targets at least one of these issues: relieving pain, reducing inflammation or protecting the cartilage. And this is where the three approaches differ fundamentally.
Librela – the monthly antibody injection
What is Librela?
Librela (active ingredient: bedinvetmab) is a monoclonal antibody. It blocks the nerve growth factor (NGF), which amplifies pain signals. Put simply: the injection switches off the pain.
How does it work?
- Monthly injection at the vet’s
- The effect sets in after a few days
- Specifically blocks pain signals
- Must be repeated every month
What are the risks?
This is where it gets complicated. Librela has helped many dogs. But criticism is growing. In the Facebook group ‘Librela Zoetis Experiences’, dog owners report:
- Loss of appetite and lethargy
- Deterioration in mobility (paradoxically)
- Skin reactions and itching
- In rare cases, more serious problems
The Südkurier published a critical report in 2025. Google searches such as “Librela negative experiences” and “Librela long-term effects” are on the rise.
Important: Librela only treats the pain. The osteoarthritis itself continues to progress. Your dog moves without pain, but may be putting more strain on the damaged joint – which can accelerate wear and tear.
Costs
Approx. 80–120 euros per month (depending on weight and vet). That’s 960–1,440 euros a year.
Lenivia – The new 3-month injection
What is Lenivia?
Lenivia (active ingredient: Izenivetmab) was launched in 2026. Like Librela, it blocks pain signals via the NGF pathway. The main difference is that a single injection lasts for up to three months.
How does it differ from Librela?
- Just one injection every three months instead of monthly
- Fewer visits to the vet, less stress for your dog
- Similar mechanism of action (anti-NGF antibody)
- Even less long-term data available than for Librela
What do we know about side effects?
Lenivia is new. This means that whilst the clinical trials show a good safety profile, there is as yet no long-term experience. The same fundamental concerns as with Librela apply here too – it merely blocks the pain rather than treating the cause.
Costs
Not yet widely available. Initial price figures suggest similar annual treatment costs to Librela, despite fewer injections.
The natural way – dietary supplements and more
How do natural joint supplements work?
Natural dietary supplements work differently to injections. They target the causes rather than the pain signals:
Green-lipped mussel (from New Zealand): Contains natural omega-3 fatty acids and glycosaminoglycans. Inhibits inflammation in the joint and supports cartilage regeneration.
Glucosamine and chondroitin: The building blocks of joint cartilage. Your dog needs them to repair damaged cartilage.
MSM (organic sulphur): Has anti-inflammatory and pain-relieving effects. Is needed by the body for collagen formation.
Devil’s claw and ginger: Natural anti-inflammatories. Used in naturopathy for centuries.
Benefits
- No known serious side effects
- Treats the causes (cartilage protection, anti-inflammatory action), not just the symptoms
- Easy daily administration (as a tablet that tastes like a treat)
- Significantly cheaper than injections
- Can be given long-term
- Also contains vitamins and minerals
Drawbacks – to be honest
- Takes longer to take effect (often only after 4–6 weeks)
- May not be sufficient as a stand-alone treatment for severe osteoarthritis
- There are significant differences in quality between products
Cost
High-quality joint tablets such as Veddelholzer Dog Joint Tablets cost around 26 euros and last for 1–3 months, depending on the dog’s size. That’s 100–300 euros a year – a fraction of the cost of injection therapy.
The honest comparison
| Librela | Lenivia | Natural | |
|---|---|---|---|
| Time to take effect | Days | Days | 4–6 weeks |
| Administration | Monthly (veterinarian) | Every 3 months (vet) | Daily (at home) |
| Mechanism of action | Block pain | Block pain | Inhibits inflammation, protects cartilage |
| Side effects | Increasingly reported | Little data available | No known serious |
| Costs per year | €960–1,440 | Similar | €100–300 |
| Long-term data | Several years | Hardly | Decades (individual active ingredients) |
| Cartilage protection | No | No | Yes |
What’s right for your dog?
Of course, it’s often enough if…
- The osteoarthritis is in the early to moderate stage
- Your dog is showing mild to moderate symptoms
- You’re prepared to wait 4–6 weeks for the full effect
- You want long-term joint health rather than short-term pain relief
An injection may be advisable if...
- Your dog is in severe pain and needs rapid relief
- Natural remedies alone are not enough
- The vet recommends it following a thorough examination
The combination – often the wisest approach
Many dog owners find that a combination works best: natural dietary supplements as a basis for cartilage protection and anti-inflammatory support. And, if necessary, an injection for acute episodes of pain – not as long-term medication.
This way, your dog gets the best of both worlds: long-term joint protection through natural ingredients such as green-lipped mussel, glucosamine and MSM. And targeted pain relief when it’s really needed.
Frequently asked questions
Can I give Librela or Lenivia alongside dietary supplements?
Yes. Natural joint tablets and antibody injections have different mechanisms of action. They can complement each other. However, do discuss this with your vet.
How long does it take for natural joint tablets to work?
Most dog owners report visible improvements after 4–6 weeks. Some dogs respond more quickly. Give the product at least 8 weeks before making a judgement.
Is Lenivia safer than Librela?
Both medicines work on the same principle (anti-NGF). Lenivia has the advantage that fewer injections are required. It is not yet possible to say whether it is safer – there is a lack of long-term data on this.
What is the cheapest osteoarthritis treatment for my dog?
Natural joint tablets are by far the cheapest option. From around 26 euros for 1–3 months. Injections cost 80–120 euros per month. On top of this, there are vet’s fees.
Can dietary supplements cure osteoarthritis?
No. Osteoarthritis is incurable – neither through injections nor through dietary supplements. But you can slow its progression, relieve pain and improve your dog’s quality of life.
My dog can’t tolerate Librela. What now?
Stop the injections and speak to your vet. Natural supplements containing green-lipped mussel, MSM and devil’s claw are a popular alternative. Making the switch takes a bit of patience, as the natural active ingredients take longer to take effect.
When should I take my dog to the vet?
This article is no substitute for a visit to the vet. See your vet if:
- Your dog suddenly starts limping heavily or is unable to put any weight on one leg
- The symptoms get worse despite treatment
- Your dog has a fever or the joint is swollen and warm
- He displays unusual behaviour after a Librela or Lenivia injection
- You’re unsure whether it’s osteoarthritis or something else
A thorough diagnosis is the basis for any treatment – whether it’s an injection, natural remedies or a combination of both.
Veddelholzer Dog Joint Tablets
With green-lipped mussel, glucosamine, chondroitin and MSM – 100% natural, made in Germany.