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What is Latanoprostene Bunod: Uses, Dosage, Side Effects and More
What is Latanoprostene Bunod: Uses, Dosage, Side Effects and More

Health Library

What is Latanoprostene Bunod: Uses, Dosage, Side Effects and More

October 10, 2025


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Latanoprostene bunod is a prescription eye drop medication used to treat high eye pressure in people with glaucoma or ocular hypertension. This newer medication combines two active components that work together to help lower the pressure inside your eyes, which can help protect your vision from damage.

If you've been diagnosed with glaucoma or high eye pressure, you're likely exploring treatment options to keep your eyes healthy. Understanding how this medication works and what to expect can help you feel more confident about your treatment plan.

What is Latanoprostene Bunod?

Latanoprostene bunod is a dual-action eye drop that releases two different compounds once it enters your eye. The medication is designed to lower intraocular pressure (IOP), which is the fluid pressure inside your eye.

This medication is relatively new compared to other glaucoma treatments, having been approved by the FDA in 2017. It belongs to a class of medications called prostaglandin analogs, but it has a unique twist that sets it apart from older treatments.

The "bunod" part of the name refers to a special nitric oxide-releasing component that provides additional pressure-lowering benefits. Think of it as getting two medications in one drop, working through different pathways to protect your vision.

What is Latanoprostene Bunod Used For?

Latanoprostene bunod is primarily used to treat elevated intraocular pressure in adults with open-angle glaucoma or ocular hypertension. These conditions occur when fluid doesn't drain properly from your eyes, causing pressure to build up.

Open-angle glaucoma is the most common type of glaucoma, where the drainage angle in your eye remains open but doesn't work efficiently. Over time, this increased pressure can damage the optic nerve and lead to vision loss if left untreated.

Ocular hypertension means you have higher than normal eye pressure but haven't yet developed optic nerve damage or vision loss. Your doctor may prescribe this medication as a preventive measure to reduce your risk of developing glaucoma.

In some cases, your doctor might recommend this medication if other glaucoma treatments haven't been effective enough or if you've experienced bothersome side effects from other eye drops.

How Does Latanoprostene Bunod Work?

Latanoprostene bunod works through a dual mechanism that makes it quite effective at lowering eye pressure. When you apply the drops, the medication breaks down into two active components that each work in different ways.

The first component, latanoprost acid, increases the outflow of fluid from your eye through the eye's natural drainage system. This is similar to how other prostaglandin analog medications work, helping fluid drain more efficiently.

The second component releases nitric oxide, which helps relax and widen the drainage pathways in your eye. This creates additional routes for fluid to leave your eye, providing extra pressure-lowering benefits.

This medication is considered moderately strong among glaucoma treatments. It's often more effective than single-component prostaglandin analogs, but the improvement is usually modest rather than dramatic.

How Should I Take Latanoprostene Bunod?

Latanoprostene bunod is typically used once daily, preferably in the evening. The standard dose is one drop in the affected eye(s) at the same time each day.

Before applying the drops, wash your hands thoroughly and make sure the tip of the bottle doesn't touch your eye or any other surface. Tilt your head back slightly, pull down your lower eyelid to create a small pocket, and squeeze one drop into this pocket.

After applying the drop, gently close your eyes for about one to two minutes. You can also press lightly on the inner corner of your eye near your nose to prevent the medication from draining into your tear duct.

You don't need to take this medication with food or avoid certain foods, as it's applied directly to your eye. However, if you use other eye drops, wait at least 5 minutes between different medications to prevent them from washing each other out.

How Long Should I Take Latanoprostene Bunod For?

Latanoprostene bunod is typically a long-term treatment that you'll need to use indefinitely to maintain lower eye pressure. Glaucoma and ocular hypertension are chronic conditions that require ongoing management.

You should start noticing pressure-lowering effects within a few weeks of starting treatment. However, the full benefits may take up to 12 weeks to develop, so patience is important during the initial treatment period.

Your doctor will monitor your eye pressure regularly, usually every few months initially, then less frequently once your pressure is stable. These check-ups help ensure the medication is working effectively and that your eye pressure remains in a healthy range.

Never stop using this medication without talking to your doctor first, even if you feel fine. High eye pressure typically doesn't cause symptoms, so you might not realize if your pressure is rising again.

What Are the Side Effects of Latanoprostene Bunod?

Like all medications, latanoprostene bunod can cause side effects, though not everyone experiences them. Most side effects are mild and related to changes in or around your eyes.

Here are the most common side effects you might notice:

  • Eye redness or irritation
  • Eye pain or discomfort
  • Blurred vision, especially right after applying drops
  • Feeling like something is in your eye
  • Increased tearing
  • Darkening of the iris (colored part of your eye)
  • Darkening of eyelashes and skin around the eyes
  • Longer, thicker eyelashes

The eye color and eyelash changes are usually permanent and tend to be more noticeable in people with lighter-colored eyes. Many people actually consider the eyelash changes to be a positive side effect.

Less common but more serious side effects include severe eye pain, sudden vision changes, or signs of eye infection such as discharge or swelling. If you experience any of these symptoms, contact your doctor promptly.

Some people may experience headaches, particularly in the first few weeks of treatment. This often improves as your body adjusts to the medication.

Who Should Not Take Latanoprostene Bunod?

Latanoprostene bunod isn't suitable for everyone, and there are certain situations where your doctor might recommend a different treatment option.

You should not use this medication if you're allergic to latanoprostene bunod or any of its ingredients. Signs of an allergic reaction include severe eye redness, swelling, or difficulty breathing.

This medication is not recommended for children under 18 years old, as safety and effectiveness haven't been established in pediatric patients. Childhood glaucoma is rare and usually requires specialized treatment approaches.

Here are some conditions that require special consideration:

  • Pregnancy or breastfeeding (discuss risks and benefits with your doctor)
  • History of eye inflammation or infection
  • Previous eye surgery or injury
  • Contact lens use (remove lenses before applying drops)
  • Other types of glaucoma besides open-angle glaucoma

Your doctor will carefully evaluate your medical history and current health status to determine if this medication is right for you. Be sure to mention all medications you're taking, including other eye drops.

Latanoprostene Bunod Brand Name

Latanoprostene bunod is sold under the brand name Vyzulta. This is currently the only brand name available for this medication, as it's still relatively new and under patent protection.

When your doctor prescribes this medication, they may write either "latanoprostene bunod" or "Vyzulta" on your prescription. Both refer to the same medication, so don't be confused if you see different names on your prescription bottle and medication information.

Generic versions of this medication are not yet available, which means it may be more expensive than some other glaucoma treatments. However, the manufacturer offers patient assistance programs that might help reduce your out-of-pocket costs.

Latanoprostene Bunod Alternatives

If latanoprostene bunod isn't suitable for you or doesn't work well enough, several alternative treatments are available for managing glaucoma and ocular hypertension.

Other prostaglandin analog eye drops include latanoprost, travoprost, and bimatoprost. These work similarly to latanoprostene bunod but don't have the nitric oxide component.

Different classes of glaucoma medications include:

  • Beta-blockers like timolol
  • Alpha-2 agonists like brimonidine
  • Carbonic anhydrase inhibitors like dorzolamide
  • Combination medications that include multiple drug classes

Your doctor might also recommend laser treatments or surgery if eye drops aren't controlling your pressure adequately. These options include selective laser trabeculoplasty (SLT) or various surgical procedures.

The choice of treatment depends on your specific type of glaucoma, how well you tolerate medications, your eye pressure target, and other individual factors.

Is Latanoprostene Bunod Better Than Latanoprost?

Latanoprostene bunod is generally more effective at lowering eye pressure than latanoprost alone, but whether it's "better" depends on your individual situation.

Clinical studies show that latanoprostene bunod typically lowers eye pressure by about 1-2 mmHg more than latanoprost. While this might not sound like much, even small improvements in pressure control can be meaningful for protecting your vision.

The main advantages of latanoprostene bunod include its dual mechanism of action and potentially better pressure-lowering effects. However, it's also more expensive than generic latanoprost and may cause similar side effects.

Latanoprost has been used for many years and has a well-established safety profile. It's also available as a generic medication, making it more affordable for many patients.

Your doctor will consider factors like your current eye pressure, how well you've responded to other treatments, insurance coverage, and your personal preferences when deciding between these options.

Frequently asked questions about Latanoprostene bunod (ophthalmic route)

Latanoprostene bunod is generally safe for people with heart disease because it's applied directly to the eye and very little gets into your bloodstream. However, you should still inform your doctor about any heart conditions you have.

Unlike some oral glaucoma medications, topical eye drops like latanoprostene bunod rarely affect heart rate or blood pressure. The small amount that might enter your system is usually not enough to cause cardiovascular side effects.

If you have severe heart disease or take multiple heart medications, your doctor may want to monitor you more closely when starting any new treatment, including eye drops.

If you accidentally put more than one drop in your eye, don't panic. Rinse your eye gently with clean water or saline solution if you have it available.

Using extra drops occasionally is unlikely to cause serious problems, but it might increase your risk of temporary side effects like eye redness or irritation. More medication doesn't necessarily mean better pressure control.

If you consistently use too much medication or if you experience severe eye pain, vision changes, or other concerning symptoms, contact your doctor or pharmacist for guidance.

If you miss your evening dose, apply it as soon as you remember, unless it's close to time for your next scheduled dose. In that case, skip the missed dose and resume your regular schedule.

Don't double up on doses to make up for a missed one, as this can increase your risk of side effects without providing additional benefits. Using two drops close together won't improve your eye pressure control.

Try to establish a routine that helps you remember your daily dose, such as applying it at the same time each evening or setting a phone reminder.

You should only stop taking latanoprostene bunod under your doctor's supervision. Glaucoma and ocular hypertension are chronic conditions that typically require lifelong treatment to prevent vision loss.

If you stop the medication suddenly, your eye pressure will likely return to its previous elevated levels within a few weeks. This puts you at risk for optic nerve damage and vision loss.

Your doctor might consider changing your treatment if you experience intolerable side effects, if your eye pressure isn't controlled well enough, or if your condition changes. However, they'll typically switch you to another medication rather than stopping treatment entirely.

You can use contact lenses while taking latanoprostene bunod, but you need to remove them before applying the eye drops. The medication contains preservatives that can be absorbed by soft contact lenses and potentially cause irritation.

After applying your drops, wait at least 15 minutes before putting your contact lenses back in. This gives the medication time to be absorbed and reduces the risk of interactions with your lenses.

If you notice increased eye irritation or discomfort with your contacts after starting this medication, talk to your eye doctor. They might recommend switching to daily disposable lenses or adjusting your lens-wearing schedule.

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