FDA-filed SPL labeling · retrieved through openFDA

Omidenepag Isopropyl Ophthalmic

Omidenepag isopropyl ophthalmic solution is a prescription eye drop used to lower elevated eye pressure in adults with open-angle glaucoma or ocular hypertension.

Brand name Omlonti
Drug class Prostaglandin E2 Receptor Agonist
Rx Form 1 Route Ophthalmic
Dr. Brian Staiger, PharmD, BCPS
Reviewed by Last reviewed Jul 10, 2026
🧬 Where this information comes from Click to expand

The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 1 clinical label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →

At a glance
Linked label effectiveApr 21, 2025
AvailabilityRx
Earliest approval/marketing year 2022
FDA-listed product records 3
Boxed warningNone found in compared labels
How we combine label and product data →
No current FDA shortage listed · checked Sep 15, 2026
Omidenepag Isopropyl Ophthalmic at a glance The quick version — the full detail is in the Patient Information Guide below.
💊
HelloPharmacist Editorial Team Bottom Line
Omlonti eye drops effectively lower eye pressure in open-angle glaucoma and ocular hypertension, helping protect the optic nerve from damage. The most important thing to know is that it can permanently change your eye color, so be sure to have regular eye exams while using it. Use one drop in the evening as directed, and call your doctor if you notice worsening eye redness, pain, or any change in your central vision.

📖 Omidenepag Isopropyl Ophthalmic: Patient Information Guide

A plain-language walkthrough of Omidenepag Isopropyl Ophthalmic — what it treats, how it works, how it’s taken, side effects, warnings and interactions. Tap any section to expand it.

🎯What it's used for

Omidenepag isopropyl ophthalmic solution is used to lower elevated intraocular pressure (IOP) — pressure inside the eye — in adults. Specifically:

  • Omlonti (omidenepag isopropyl ophthalmic solution) 0.002% eye drops are indicated for open-angle glaucoma — the most common form of glaucoma, where the eye's drainage angle is open but pressure still builds up
  • Omlonti is also indicated for ocular hypertension — elevated eye pressure that has not yet caused detectable vision loss, but raises the risk of future glaucoma damage
⚙️How it works

Omidenepag isopropyl is what's called a prodrug — it isn't active until your body converts it. After the eye drop is placed in the eye, it passes through the cornea (the clear front surface of the eye), where an enzyme called carboxylesterase-1 rapidly converts it into the active compound, omidenepag. Omidenepag then binds to EP2 receptors — a specific type of prostaglandin receptor — and this lowers the pressure inside the eye. The precise step-by-step mechanism isn't fully known yet, but lower IOP reduces the risk of optic nerve damage and vision loss over time.

💊How it's taken

Omlonti eye drops are applied once daily in the evening — one drop into the affected eye or eyes. Shake the bottle gently before each use. If you use more than one eye drop medication, space them at least 5 minutes apart.

  • Remove contact lenses before applying Omlonti
  • Wait at least 15 minutes after the drop before reinserting contact lenses
  • Avoid touching the bottle tip to your eye or any surface
  • Follow your prescriber's and pharmacist's instructions for your exact regimen
🤒Side effects — in detail

The most common side effects people experience with Omlonti include:

  • Red eyes (conjunctival or ocular hyperemia) — the most commonly reported, in about 9% of users
  • Light sensitivity (photophobia)
  • Blurred vision
  • Dry eyes
  • Stinging or pain when applying the drop
  • Eye pain or irritation
  • Headache
  • Mild visual changes

More serious reactions — including eye color changes, eye inflammation, or macular edema (swelling at the center of the retina) — require prompt attention from your eye doctor. Contact your prescriber if you notice worsening redness, pain, or any change in your central vision.

⚠️Warnings & precautions
  • Permanent iris color change: Omlonti can slowly darken the colored part of your eye (iris), making it more brown. This change may take months or years to appear and is likely permanent even after you stop the medication. Have regular eye exams to monitor for this.
  • Eyelash and skin changes: Your eyelashes may become longer, thicker, or more numerous. Skin darkening around the eye may also occur. These changes are usually reversible after stopping treatment.
  • Eye inflammation: Omlonti can cause or worsen eye inflammation (such as iritis or uveitis). Use with caution if you already have active eye inflammation.
  • Macular edema: Swelling at the center of the retina has been reported, especially in patients who have had cataract surgery or who are missing their natural lens. Tell your doctor if you notice any change in your central or detailed vision.
  • Contamination risk: Never let the bottle tip touch your eye or any surface — this can contaminate the solution or injure the eye.
🔀What it interacts with

The Omlonti label does not identify specific drug, food, or supplement interactions. However, if you use any other eye drops, be sure to space them at least 5 minutes apart from Omlonti to avoid diluting or washing out the medication.

  • Other topical ophthalmic (eye) medications — administer at least 5 minutes apart from Omlonti to ensure each drug works properly

This is not a complete list of interactions. Always talk with your doctor or pharmacist before starting, stopping, or changing any medication.

📋Before taking it
  • Active eye inflammation: Tell your doctor if you have iritis, uveitis, or other active eye inflammation — Omlonti should be used with caution
  • History of cataract surgery or missing natural lens: You may have a higher risk of macular edema; discuss this with your eye doctor
  • Pregnancy: There are no human studies; animal studies at high doses showed fetal skeletal abnormalities — talk to your doctor about the risks and benefits
  • Breastfeeding: It is unknown whether this medication passes into breast milk; discuss with your doctor before using while nursing
  • Children: Safety and effectiveness in pediatric patients have not been established
  • Older adults: No differences in safety or effectiveness have been found compared to younger adults — standard monitoring applies
📡Pharmacodynamics — effects in the body

Omidenepag isopropyl works specifically in the eye to reduce elevated intraocular pressure (IOP). Elevated IOP is a primary risk factor for glaucomatous damage to the optic nerve and progressive loss of visual field. By lowering IOP, the medication helps reduce that risk. The drug acts on EP2 receptors in the eye, though the full downstream mechanism by which this reduces pressure is still being studied.

🔬Pharmacokinetics — how your body processes it

After Omlonti is applied to the eye, it is absorbed through the cornea and quickly converted by an enzyme (carboxylesterase-1) into its active form, omidenepag. Peak blood levels are reached in just 10–15 minutes after application, and the drug does not accumulate in the body with daily use. The active compound is further broken down by the liver through several pathways. In animal studies, about 89% of the drug was eliminated from the body within 7 days — mostly through the stool (83%) and a smaller amount through urine (4%).

📦How to store it

Store unopened bottle (s) in the refrigerator at 2°C to 8°C (36°F to 46°F). stored for up to 31 days at up to 30°C (86°F).

📄 Written from Omidenepag Isopropyl Ophthalmic’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Every point is grounded in that labeling — nothing is invented. How we use AI →

🩺 Pharmacist Counseling Corner

Quick, plain-English answers to the questions patients ask most about Omidenepag Isopropyl Ophthalmic — the kind of thing our pharmacy team would talk through with you at the counter.

What exactly is Omlonti supposed to do for my eyes?
Omlonti lowers the pressure inside your eye. That pressure — called intraocular pressure, or IOP — can build up in conditions like open-angle glaucoma or ocular hypertension. When it stays too high, it can damage the optic nerve and gradually harm your vision. Omlonti helps keep that pressure in a safer range to protect your sight over time.
Why do I have to use it in the evening? Does it matter?
Yes, timing does matter with this type of eye drop. The recommended schedule is one drop in the evening, and sticking to that timing helps the medication work consistently. Try to use it at the same time each evening so it becomes part of your routine.
I heard this eye drop can change the color of my eyes — is that true?
It can, yes. Omlonti may gradually cause the iris — the colored part of your eye — to become more brown over time. This happens because the medication increases pigment in the eye's color cells. The tricky part is that this color change can be permanent, even if you stop using the drop. Changes to the skin around the eye and to eyelashes are more likely to reverse after stopping. Your eye doctor will watch for this at your checkups.
What side effects are most common and which ones should I call my doctor about?
The most common side effects are redness in the eye, light sensitivity, blurred vision, and dry or irritated eyes — most people find these manageable. You should call your doctor right away if you notice worsening eye pain or redness that doesn't get better, or any change in your central vision or detailed sight. That last one, in particular, could signal a condition called macular edema — swelling at the center of the retina — which needs prompt attention, especially if you've had cataract surgery.
Can I put my contact lenses back in right after using the drop?
Not right away. You need to remove your contacts before applying Omlonti, and then wait at least 15 minutes before putting them back in. This gives the medication time to be absorbed properly without the lens interfering.
Is it safe to use if I'm pregnant or breastfeeding?
There's no human safety data for Omlonti during pregnancy. Animal studies at doses much higher than what people use showed some fetal skeletal effects in rabbits, though not in rats. For breastfeeding, it's unknown whether the medication passes into breast milk. The systemic absorption from an eye drop is very low, but because we don't have enough data, it's important to have an honest conversation with your doctor about the risks and benefits for your specific situation.
Is Omidenepag Isopropyl Ophthalmic available over the counter?
Omidenepag Isopropyl Ophthalmic is dispensed by prescription according to its FDA labeling, so it isn't sold over the counter. Your prescriber and pharmacist will determine if it's appropriate for you.
When was Omidenepag Isopropyl Ophthalmic first available?
Omidenepag Isopropyl Ophthalmic has been available in the United States since at least 2022, based on FDA approval history (Drugs@FDA) and product marketing records.
Who makes Omidenepag Isopropyl Ophthalmic?
Omidenepag Isopropyl Ophthalmic is supplied by 2 manufacturers listed in the FDA NDC Directory, including Santen Incorporated, Ocuvex Therapeutics, Inc..

💬 Answers drafted from Omidenepag Isopropyl Ophthalmic’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Grounded in that labeling — nothing is made up. How we use AI →

🧰 Keep exploring

💊 How Omidenepag Isopropyl Ophthalmic comes

Omidenepag Isopropyl Ophthalmic is available in 1 form. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.

Eye drops

In the eye
Brands Omlonti
How this form is used
What it may be used for
  • Omlonti is used to reduce elevated intraocular pressure (IOP) in adults with open-angle glaucoma
  • Omlonti is used to lower elevated IOP in adults with ocular hypertension
Important instructions
  • Omlonti: instill one drop into the affected eye(s) once daily in the evening
  • Omlonti: gently shake the bottle before each use
  • Omlonti: remove contact lenses before applying and wait at least 15 minutes before reinserting them
  • Omlonti: if using other eye drops, wait at least 5 minutes between each medication
Available strengths 1 strength
3 FDA-listed product records

📊 Omidenepag Isopropyl Ophthalmic across the U.S. market

How Omidenepag Isopropyl Ophthalmic appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.

1
Dose forms
2
Manufacturers
1
Brand names
3
FDA-listed product records
2022
First marketed
Santen Incorporated67%
Ocuvex Therapeutics, Inc.33%

Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.

🔍 Compare Omidenepag Isopropyl Ophthalmic products

A representative set of FDA-listed product records for Omidenepag Isopropyl Ophthalmic — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)

Strength Route Manufacturer / Labeler Category Details
💊Eye drops
0.02 mg/mL Ophthalmic Ocuvex Therapeutics, Inc. NDA View NDC →
0.02 mg/mL Ophthalmic Santen Incorporated × 2 listings NDA View NDC →

Showing 3 of 3 products — FDA National Drug Code Directory. See every product, package size and price: browse all 3 Omidenepag Isopropyl Ophthalmic NDCs →

🏷️ Sold under these brand names

Omlonti

🏭 Manufacturers & labelers

Santen Incorporated 2 Ocuvex Therapeutics, Inc. 1

🔬 Where this comes from

Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.

📄
FDA-filed drug labels (SPL) Uses, dosing, warnings & side effects from SPL records retrieved through openFDA; the linked representative set can be verified on DailyMed. ✓ Linked label effective Apr 21, 2025
🏭
Forms, brands & labelersAggregated from ingredient-matched FDA National Drug Code Directory product records for Omidenepag Isopropyl Ophthalmic.
📈
Real-world reportsThe FDA Adverse Event Reporting System (FAERS), served through openFDA.
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Recalls & shortagesopenFDA drug-enforcement reports and the FDA drug-shortage database.
🧾 Clinical label set — FDA-filed SPL labels retained for Omidenepag Isopropyl Ophthalmic after exact ingredient or ingredient-combination matching and applicable route/form matching
Clinical labels in scope
1
NDC products indexed
3
Distinct labelers/manufacturers represented
2
Linked representative label
Ocuvex Therapeutics, Inc.
Linked label effective
Apr 21, 2025
Composite sections available
19
Linked SPL Set ID
4258e437-7e92-4b09-baf1-01cb158cfc05
Linked SPL Document ID
33504c5f-664b-4f6b-e063-6294a90a2aea
Open the linked representative label on DailyMed ↗

How we combine label and product data

HelloPharmacist combines public FDA and NLM records; we don’t author the underlying clinical facts. We identified 1 FDA-filed SPL label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. The representative label is the starting point for the displayed reference monograph; the 12 largest stored in-scope SPL records, which may include that representative, are compared section by section, and the longest available version of each section is retained. Forms, routes, brands, labelers, product-listed strengths, and product-record counts are aggregated separately from ingredient-matched FDA NDC Directory records; package records listed above are associated with the linked SPL; and the normalized concept hierarchy comes from NLM RxNorm.

Where a section is identified as AI-written, its plain-language text is generated from bounded label evidence. New draft drug pages remain in the admin review queue before first publication. Ocuvex Therapeutics, Inc. is the representative DailyMed label linked for verification and dates; it is not the sole source used for the page.

This is general education, not medical advice — always consult your doctor or pharmacist about your medications and any medical condition. For the exact wording of the linked representative label, view that label on DailyMed; some displayed composite sections may come from other in-scope SPL labels. Learn how we use AI and our data sources & update cadence.