COMBIGAN brimonidine tartrate, timolol maleate 2 mg/mL; 5 mg/mL Solution/ Drops
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the beta-Adrenergic Blocker class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
Ophthalmic brimonidine is used to lower pressure in the eyes in patients who have glaucoma (a condition in which increased pressure in the eye can lead to gradual loss of vision) or ocular hypertension (increased pressure in the eyes). Brimonidine is in a class of drugs called alpha adrenergic agonists. Brimonidine works by decreasing the amount of fluid in the eyes.
Read the full MedlinePlus article ↗Patient education
Supplement & herbal interactions
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII F5UM2KM3W7
Benzalkonium chloride is a chemical compound that works as a preservative and antimicrobial agent in medications. It prevents bacterial and fungal growth in liquid formulations to keep the product safe during storage and use.
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UNII QTT17582CB
A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
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UNII 55X04QC32I
A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
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UNII GR686LBA74
Sodium phosphate, dibasic is a salt derived from phosphoric acid. It acts as a buffer to help maintain the medicine's pH balance and may serve as a binder or filler in tablets and capsules.
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UNII 3980JIH2SW
A salt form of phosphoric acid that acts as a buffer and pH adjuster in medicines. It helps keep the product at the correct acidity level for stability and effectiveness.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
6 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $39.160 | $195.80 / 5 ml |
| Medicaid paysCMS SDUD · 12 mo | $40.31 | $201.54 / 5 ml |
| Medicare drug plans payPart D · Q2 2026 | $39.26 | $196.28 / 5 ml |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Brimonidine Tartrate/Timolol Maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 65145-0164-01 | Caplin | 1 bottle | $1.839 | AB | Availability likely | save 95% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 70069-0653-01 | Somerset | 1 bottle | $1.839 | AB | Availability likely | save 95% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 00781-7186-70 | Sandoz | 10 ml | $2.461 | AB | Availability likely | save 94% |
| Brimonidine Tartrate/Timolol Maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 65145-0163-01 | Caplin | 1 bottle | $2.461 | AB | Availability likely | save 94% |
| Brimonidine Tartrate/Timolol Maleate 2 mg/mL; 5 mg/mL 68462-0281-32 | Glenmark | 1 bottle | $2.461 | AB | Availability likely | save 94% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 70069-0652-01 | Somerset | 1 bottle | $2.461 | AB | Availability likely | save 94% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 00832-1425-05 | Upsher-Smith | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate/Timolol Maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 60505-0589-01 | Apotex | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 62332-0706-05 | Alembic | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate/Timolol Maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 65145-0162-01 | Caplin | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate/Timolol Maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 69315-0330-05 | Leading | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 70069-0651-01 | Somerset | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine Tartrate And Timolol Maleate 2 mg/mL; 5 mg/mL 71921-0188-05 | Florida | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Brimonidine tartrate and Timolol maleate 2 mg/mL; 5 mg/mL 72603-0931-05 | NorthStar | 1 bottle | $2.795 | AB | Availability likely | save 93% |
| Combigan 2 mg/mL; 5 mg/mLthis 00023-9211-05 | Allergan, | 1 bottle | $39.160 | AB | Availability likely | — |
| Brimonidine Tartrate and Timolol Maleate 2 mg/mL; 5 mg/mL 46708-0706-05 | Alembic | 1 bottle | — | AB | FDA listed | — |
| Brimonidine Tartrate and Timolol maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 68083-0624-01 | Gland | 1 bottle | — | AB | FDA listed | — |
| Brimonidine Tartrate and Timolol maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 68083-0625-01 | Gland | 1 bottle | — | AB | FDA listed | — |
| Brimonidine Tartrate and Timolol maleate Ophthalmic Solution 2 mg/mL; 5 mg/mL 68083-0664-01 | Gland | 1 bottle | — | AB | FDA listed | — |
| Brimonidine Tartrate/Timolol Maleate 2 mg/mL; 5 mg/mL 72485-0634-05 | ARMAS | 1 bottle | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
The FDA lists approved generic versions of this medicine, but that does not always mean a pharmacy can get one today. Patent rules, launch agreements, supply and pricing can affect when generics actually arrive.
Where does this data come from?
🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
Where does this data come from?
📦 Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Status |
|---|---|---|---|---|---|
| 00023-9211-03 | 1 BOTTLE, DROPPER in 1 CARTON (0023-9211-03) / 2.5 mL in 1 BOTTLE, DROPPER | — | — | 2007-11-14 | Active |
| 00023-9211-05 You're viewing this | 1 BOTTLE, DROPPER in 1 CARTON (0023-9211-05) / 5 mL in 1 BOTTLE, DROPPER | $39.16 / mL | $195.80 | 2007-11-14 | Active |
| 00023-9211-10 | 1 BOTTLE, DROPPER in 1 CARTON (0023-9211-10) / 10 mL in 1 BOTTLE, DROPPER | $39.10 / mL | $390.97 | 2007-11-14 | Active |
| 00023-9211-15 | 1 BOTTLE, DROPPER in 1 CARTON (0023-9211-15) / 15 mL in 1 BOTTLE, DROPPER | $39.09 / mL | $586.33 | 2007-11-14 | Active |
This pack effectively ties for the lowest per-mL cost of the 3 priced pack sizes ($39.16 NADAC).
In Medicaid, this is the most-dispensed pack of this product — about 87% of fills over the last four reported quarters. See all packs ↓
Pack size FAQ
What quantity is in NDC 00023-9211-05?
What NDC number is used to bill for this package of COMBIGAN brimonidine tartrate, timolol maleate 2 mg/mL; 5 mg/mL Solution/ Drops?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE COMBIGAN ® is indicated for the reduction of elevated intraocular pressure (IOP) in patients with glaucoma or ocular hypertension who require adjunctive or replacement therapy due to inadequately controlled IOP. The IOP-lowering of COMBIGAN dosed twice a day was slightly less than that seen with the concomitant administration of 0.5% timolol maleate ophthalmic solution dosed twice a day and 0.2% brimonidine tartrate ophthalmic solution dosed three times per day. COMBIGAN is a combination of brimonidine tartrate, an alpha-adrenergic receptor agonist, and timolol maleate, a beta-adrenergic receptor inhibitor, indicated for the reduction of elevated intraocular pressure (IOP) in patients with glaucoma or ocular hypertension who require adjunctive or replacement therapy due to inadequately controlled IOP.
The IOP-lowering of COMBIGAN dosed twice a day was slightly less than that seen with the concomitant administration of timolol maleate ophthalmic solution, 0.5% dosed twice a day and brimonidine tartrate ophthalmic solution, 0.2% dosed three times per day. ( 1 )
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION The recommended dosage is one drop in the affected eye(s) twice daily approximately 12 hours apart. If more than one topical ophthalmic product is to be used, the different products should be instilled at least 5 minutes apart. One drop in the affected eye(s), twice daily approximately 12 hours apart. ( 2 )
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Ophthalmic solution containing 0.2% brimonidine tartrate and 0.5% timolol (6.8 mg/mL timolol maleate). Ophthalmic solution: 0.2% brimonidine tartrate and 0.5% timolol. ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS Bronchial asthma, a history of bronchial asthma, severe chronic obstructive pulmonary disease. ( 4.1 , 5.1 , 5.3 ) Sinus bradycardia, atrioventricular block, overt cardiac failure, cardiogenic shock. ( 4.2 , 5.2 ) Neonates and infants (pediatric patients younger than 2 years old). ( 4.3 ) Hypersensitivity to any component of this product. ( 4.4 )
4.1Reactive Airway Disease I ncluding Asthma, COPD COMBIGAN is contraindicated in patients with reactive airway disease including bronchial asthma; a history of bronchial asthma; severe chronic obstructive pulmonary disease [ see Warnings and Precautions ( 5.1 , 5.3 ) ] .
4.2Sinus Bradycardia, AV Block, Cardiac Failure, Cardiogenic Shock COMBIGAN is contraindicated in patients with sinus bradycardia; second or third degree atrioventricular block; overt cardiac failure [see Warnings and Precautions ( 5.2 )] ; cardiogenic shock.
4.3Neonates and Infants ( Pediatric Patients Younger than 2 Years Old ) COMBIGAN is contraindicated in neonates and infants (pediatric patients younger than 2 years old) [see Use in Specific Populations ( 8.4 )] .
4.4Hypersensitivity Reactions Local hypersensitivity reactions have occurred following the use of different components of COMBIGAN. COMBIGAN is contraindicated in patients who have exhibited a hypersensitivity reaction to any component of this medication in the past.
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Potential for Severe Respiratory or Cardiac Reactions ( 5.1 ) Cardiac Failure ( 5.2 ) Obstructive Pulmonary Disease ( 5.3 ) Potentiation of Vascular Insufficiency ( 5.4 ) Increased Reactivity to Allergens ( 5.5 ) Potentiation of Muscle Weakness ( 5.6 ) Masking of Hypoglycemic Symptoms in Patients with Diabetes Mellitus ( 5.7 ) Masking of Thyrotoxicosis ( 5.8 ) Ocular Hypersensitivity ( 5.9 )
5.1Potenti a l for Severe Respiratory or Cardiac Reactions COMBIGAN contains timolol maleate; and although administered topically can be absorbed systemically. Therefore, the same types of adverse reactions found with systemic administration of beta-adrenergic blocking agents may occur with topical administration. For example, severe respiratory reactions and cardiac reactions including death due to bronchospasm in patients with asthma, and rarely death in association with cardiac failure have been reported following systemic or ophthalmic administration of timolol maleate [see Contraindications ( 4.1 )] .
Additionally, ophthalmic beta-blockers may impair compensatory tachycardia and increase risk of hypotension.
5.2Cardiac Failure Sympathetic stimulation may be essential for support of the circulation in individuals with diminished myocardial contractility, and its inhibition by beta-adrenergic receptor blockade may precipitate more severe failure. In patients without a history of cardiac failure, continued depression of the myocardium with beta-blocking agents over a period of time can, in some cases, lead to cardiac failure. At the first sign or symptom of cardiac failure, COMBIGAN should be discontinued [see Contraindications ( 4.2 )] .
5.3Obstructive Pulmonary Disease Patients with chronic obstructive pulmonary disease (e.g., chronic bronchitis, emphysema) of mild or moderate severity, bronchospastic disease, or a history of bronchospastic disease (other than bronchial asthma or a history of bronchial asthma, in which COMBIGAN is contraindicated [see Contraindications ( 4.1 )] should, in general, not receive beta-blocking agents, including COMBIGAN.
5.4Potentiation of Vascular Insufficiency COMBIGAN may potentiate syndromes associated with vascular insufficiency. COMBIGAN should be used with caution in patients with depression, cerebral or coronary insufficiency, Raynaud’s phenomenon, orthostatic hypotension, or thromboangiitis obliterans.
5.5Increased Reactivity to Allergens While taking beta-blockers, patients with a history of atopy or a history of severe anaphylactic reactions to a variety of allergens may be more reactive to repeated accidental, diagnostic, or therapeutic challenge with such allergens. Such patients may be unresponsive to the usual doses of epinephrine used to treat anaphylactic reactions.
5.6Potentiation of Muscle Weakness Beta-adrenergic blockade has been reported to potentiate muscle weakness consistent with certain myasthenic symptoms (e.g., diplopia, ptosis, and generalized weakness). Timolol has been reported rarely to increase muscle weakness in some patients with myasthenia gravis or myasthenic symptoms.
5.7Masking of Hypoglycemic Symptoms in Patients with Diabetes Mellitus Beta-adrenergic blocking agents should be administered with caution in patients subject to spontaneous hypoglycemia or to diabetic patients (especially those with labile diabetes) who are receiving insulin or oral hypoglycemic agents. Beta-adrenergic receptor blocking agents may mask the signs and symptoms of acute hypoglycemia.
5.8Masking of Thyrotoxicosis Beta-adrenergic blocking agents may mask certain clinical signs (e.g., tachycardia) of hyperthyroidism. Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents that might precipitate a thyroid storm.
5.9Ocular Hypersensitivity Ocular hypersensitivity reactions have been reported with brimonidine tartrate ophthalmic solutions 0.2%, with some reported to be associated…
🤒 Adverse Reactions ▾
6 A DVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: Hypersensitivity Reactions [see Contraindications ( 4.4 )] Potential for Severe Respiratory or Cardiac Reactions [see Warnings and Precautions ( 5.1 )] Cardiac Failure [see Warnings and Precautions ( 5.2 )] Potentiation of Vascular Insufficiency [see Warnings and Precautions ( 5.4 )] Increased Reactivity to Allergens [see Warnings and Precautions ( 5.5 )] Potentiation of Muscle Weakness [see Warnings and Precautions ( 5.6 )] Masking of Hypoglycemic Symptoms in Patients with Diabetes Mellitus [see Warnings and Precautions ( 5.7 )] Masking of Thyrotoxicosis [see Warnings and Precautions ( 5.8 )] Ocular Hypersensitivity [see Warnings and Precautions ( 5.9 )] Contamination of Topical Ophthalmic Products after Use [see Warnings and Precautions ( 5.10 )] Impairment of Beta-adrenergically Mediated Reflexes During Surgery [see Warnings and Precautions ( 5.11 )] Most common adverse reactions occurring in approximately 5% to 15% of patients included allergic conjunctivitis, conjunctival folliculosis, conjunctival hyperemia, eye pruritus, ocular burning, and stinging.
( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact AbbVie at 1-800-633-9110 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. COMBIGAN In clinical trials of 12 months duration with COMBIGAN, the most frequent reactions associated with its use occurring in approximately 5% to 15% of the patients included: allergic conjunctivitis, conjunctival folliculosis, conjunctival hyperemia, eye pruritus, ocular burning, and stinging.
The following adverse reactions were reported in 1% to 5% of patients: asthenia, blepharitis, corneal erosion, depression, epiphora, eye discharge, eye dryness, eye irritation, eye pain, eyelid edema, eyelid erythema, eyelid pruritus, foreign body sensation, headache, hypertension, oral dryness, somnolence, superficial punctate keratitis, and visual disturbance. Other adverse reactions that have been reported with the individual components are listed below. Brimonidine Tartrate (0.1%-0.2%) Abnormal taste, allergic reaction, blepharoconjunctivitis, blurred vision, bronchitis, cataract, conjunctival blanching, conjunctival edema, conjunctival hemorrhage, conjunctivitis, cough, dizziness, dyspepsia, dyspnea, fatigue, flu syndrome, follicular conjunctivitis, gastrointestinal disorder, hypercholesterolemia, hypotension, infection (primarily colds and respiratory infections), hordeolum, insomnia, keratitis, lid crusting, lid disorder, muscular pain, nasal dryness, ocular allergic reaction, pharyngitis, photophobia, rash, rhinitis, sinus infection, sinusitis, superficial punctate keratopathy, tearing, upper respiratory symptoms, visual field defect, vitreous detachment, vitreous disorder, vitreous floaters, and worsened visual acuity.
Timolol (Ocular Administration) Body as a whole : chest pain Cardiovascular : Arrhythmia, bradycardia, cardiac arrest, cardiac failure, cerebral ischemia, cerebral vascular accident, claudication, cold hands and feet, edema, heart block, palpitation, pulmonary edema, Raynaud’s phenomenon, syncope, and worsening of angina pectoris Digestive : anorexia, diarrhea, nausea Immunologic : Systemic lupus erythematosus Nervous System/Psychiatric : Increase in signs and symptoms of myasthenia gravis, insomnia, nightmares, paresthesia, behavioral changes and psychic disturbances including confusion, hallucinations, anxiety, disorientation, nervousness, and memory loss Skin : Alopecia, psoriasiform rash or exacerbation of psoriasis Hypersensitivity : Signs and symptoms of systemic allergic reactions, including anaphylaxis, angioedema, urticaria, a…
🔄 Drug Interactions ▾
7 D RUG INTERACTIONS Antihypertensives/cardiac glycosides may lower blood pressure. ( 7.1 ) Concomitant use with systemic beta-blockers may potentiate systemic beta blockade. ( 7.2 ) Oral or intravenous calcium antagonists may cause atrioventricular conduction disturbances, left ventricular failure, and hypotension.
( 7.3 ) Catecholamine-depleting drugs may have additive effects and produce hypotension and/or marked bradycardia. ( 7.4 ) Use with CNS depressants may result in an additive or potentiating effect. ( 7.5 ) Digitalis and calcium antagonists may have additive effects in prolonging atrioventricular conduction time.
( 7.6 ) CYP2D6 inhibitors may potentiate systemic beta-blockade. ( 7.7 ) Tricyclic antidepressants may potentially blunt the hypotensive effect of systemic clonidine. ( 7.8 ) Monoamine oxidase inhibitors may result in increased hypotension.
( 7.9 )
7.1Antihypertensives/Cardiac Glycosides Because COMBIGAN may reduce blood pressure, caution in using drugs such as antihypertensives and/or cardiac glycosides with COMBIGAN is advised.
7.2Beta-adrenergic Blocking Agents Patients who are receiving a beta-adrenergic blocking agent either orally or intravenously and COMBIGAN should be observed for potential additive effects of beta-blockade, both systemic and on intraocular pressure. The concomitant use of two topical beta-adrenergic blocking agents is not recommended.
7.3Calcium Antagonists Caution should be used in the co-administration of beta-adrenergic blocking agents, such as COMBIGAN, and oral or intravenous calcium antagonists because of possible atrioventricular conduction disturbances, left ventricular failure, and hypotension. In patients with impaired cardiac function, co-administration should be avoided.
7.4Catecholamine-depleting Drugs Close observation of the patient is recommended when a beta blocker is administered to patients receiving catecholamine-depleting drugs such as reserpine, because of possible additive effects and the production of hypotension and/or marked bradycardia, which may result in vertigo, syncope, or postural hypotension.
7.5CNS Depressants Although specific drug interaction studies have not been conducted with COMBIGAN, the possibility of an additive or potentiating effect with CNS depressants (alcohol, barbiturates, opiates, sedatives, or anesthetics) should be considered.
7.6Digitalis and Calcium Antagonists The concomitant use of beta-adrenergic blocking agents with digitalis and calcium antagonists may have additive effects in prolonging atrioventricular conduction time.
7.7CYP2D6 Inhibitors Potentiated systemic beta-blockade (e.g., decreased heart rate, depression) has been reported during combined treatment with CYP2D6 inhibitors (e.g., quinidine, SSRIs) and timolol.
7.8Tricyclic Antidepressants Tricyclic antidepressants have been reported to blunt the hypotensive effect of systemic clonidine. It is not known whether the concurrent use of these agents with COMBIGAN in humans can lead to resulting interference with the IOP-lowering effect. Caution, however, is advised in patients taking tricyclic antidepressants which can affect the metabolism and uptake of circulating amines.
7.9Monoamine Oxidase Inhibitors Monoamine oxidase (MAO) inhibitors may theoretically interfere with the metabolism of brimonidine and potentially result in an increased systemic side effect such as hypotension. Caution, however, is advised in patients taking MAO inhibitors which can affect the metabolism and uptake of circulating amines.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Use with caution in pediatric patients aged 2 years and older. ( 8.4 )
8.1Pregnancy Risk Summary There are no adequate and well-controlled studies with COMBIGAN in pregnant women. Limited available data from postmarketing safety reports and published literature reviews with COMBIGAN use in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes (see Data) . In animal studies, brimonidine crossed the placenta and entered into the fetal circulation to a limited extent.
Oral administration of brimonidine tartrate or timolol maleate to pregnant rats and rabbits during organogenesis at dose exposures 580 and 37 times the recommended human ophthalmic dose (RHOD) resulted in no adverse developmental effects (see Data) . Oral administration of timolol maleate to mice, rats, and rabbits during organogenesis at dose exposures up to 4,200 times the RHOD resulted in no evidence of fetal malformations (see Data) . The estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Human Data Limited available data from postmarketing safety reports and published literature with topical use of brimonidine ophthalmic solution in pregnant women are insufficient to inform a drug-associated risk of pregnancy-related adverse outcomes including miscarriage, stillbirth, congenital anomaly, and events experienced by the breastfed infant.
Animal Data Embryofetal development studies were conducted with oral administration of brimonidine tartrate during organogenesis in rats (gestation days 6 to 15) and rabbits (gestation days 6 to 18). No adverse developmental effects were observed in rats up to 2.5 mg/kg/day and rabbits up to 5 mg/kg/day. These doses represent exposures 580 and 37 times higher, respectively, than the recommended human ophthalmic dose (RHOD) of COMBIGAN at 1 drop in both eyes twice daily.
Orally administered brimonidine crossed the placenta in pregnant rats and entered the fetal circulation to a limited extent. Embryofetal development studies conducted with timolol during organogenesis in mice, rats, and rabbits at oral doses up to 50 mg/kg/day [4,200 times the maximum recommended human ophthalmic dose of 0.012 mg/kg/day on a mg/kg basis (MRHOD)] demonstrated no evidence of fetal malformations. Although delayed fetal ossification was observed at this dose in rats, there were no adverse effects on postnatal development of offspring.
Doses of 1,000 mg/kg/day (83,000 times the MRHOD) were maternotoxic in mice and resulted in an increased number of fetal resorptions. Increased fetal resorptions were also seen in rabbits at doses 8,300 times the MRHOD without apparent maternotoxicity. 8.
2 Lactation Risk Summary Timolol has been detected in human milk following oral and ophthalmic drug administration. It is not known whether brimonidine tartrate is excreted in human milk. In animal studies, brimonidine tartrate has been shown to be excreted in breast milk.
Because of the potential for serious adverse reactions in the breastfed infant, including central nervous system depression and apnea, COMBIGAN is not recommended for use during lactation. Data Animal Data After a single oral dose of 14 C-labeled brimonidine tartrate to lactating rats, brimonidine tartrate and trace metabolites were detected in milk after 30 minutes. There was 30% higher milk concentration compared to maternal plasma concentration 30 minutes after dosing and a 10-fold higher milk concentration compared to maternal plasma concentration 8 hours after dosing.
No radiolabeled brimonidine tartrate or metabolites were detectable in milk 24 hours after…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary There are no adequate and well-controlled studies with COMBIGAN in pregnant women. Limited available data from postmarketing safety reports and published literature reviews with COMBIGAN use in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage or other adverse maternal or fetal outcomes (see Data) . In animal studies, brimonidine crossed the placenta and entered into the fetal circulation to a limited extent.
Oral administration of brimonidine tartrate or timolol maleate to pregnant rats and rabbits during organogenesis at dose exposures 580 and 37 times the recommended human ophthalmic dose (RHOD) resulted in no adverse developmental effects (see Data) . Oral administration of timolol maleate to mice, rats, and rabbits during organogenesis at dose exposures up to 4,200 times the RHOD resulted in no evidence of fetal malformations (see Data) . The estimated background risk of major birth defects and miscarriage for the indicated population(s) is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Human Data Limited available data from postmarketing safety reports and published literature with topical use of brimonidine ophthalmic solution in pregnant women are insufficient to inform a drug-associated risk of pregnancy-related adverse outcomes including miscarriage, stillbirth, congenital anomaly, and events experienced by the breastfed infant.
Animal Data Embryofetal development studies were conducted with oral administration of brimonidine tartrate during organogenesis in rats (gestation days 6 to 15) and rabbits (gestation days 6 to 18). No adverse developmental effects were observed in rats up to 2.5 mg/kg/day and rabbits up to 5 mg/kg/day. These doses represent exposures 580 and 37 times higher, respectively, than the recommended human ophthalmic dose (RHOD) of COMBIGAN at 1 drop in both eyes twice daily.
Orally administered brimonidine crossed the placenta in pregnant rats and entered the fetal circulation to a limited extent. Embryofetal development studies conducted with timolol during organogenesis in mice, rats, and rabbits at oral doses up to 50 mg/kg/day [4,200 times the maximum recommended human ophthalmic dose of 0.012 mg/kg/day on a mg/kg basis (MRHOD)] demonstrated no evidence of fetal malformations. Although delayed fetal ossification was observed at this dose in rats, there were no adverse effects on postnatal development of offspring.
Doses of 1,000 mg/kg/day (83,000 times the MRHOD) were maternotoxic in mice and resulted in an increased number of fetal resorptions. Increased fetal resorptions were also seen in rabbits at doses 8,300 times the MRHOD without apparent maternotoxicity.
🧒 Pediatric Use ▾
8.4Pediatric Use COMBIGAN is contraindicated in pediatric patients younger than 2 years old [see Contraindications ( 4.3 )] . During post-marketing surveillance, apnea, bradycardia, coma, hypotension, hypothermia, hypotonia, lethargy, pallor, respiratory depression, and somnolence have been reported in infants receiving brimonidine. The safety and effectiveness of COMBIGAN for the reduction of elevated intraocular pressure (IOP) in patients with glaucoma or ocular hypertension who require adjunctive or replacement therapy due to inadequately controlled IOP have been established in pediatric patients aged 2 years and older.
Use of COMBIGAN for this indication is supported by evidence from adequate and well-controlled studies of COMBIGAN in adults with additional data from a study of the concomitant use of brimonidine tartrate ophthalmic solution 0.2% and timolol maleate ophthalmic solution in pediatric glaucoma patients (ages 2 to 7 years). In this well-controlled clinical study, brimonidine tartrate ophthalmic solution 0.2% was dosed three times a day as adjunctive therapy to beta-blockers. The most commonly observed adverse reactions were somnolence (50% to 83% in patients 2 to 6 years) and decreased alertness.
In pediatric patients 7 years of age or older (>20 kg), somnolence appears to occur less frequently (25%). Approximately 16% of patients on brimonidine tartrate ophthalmic solution discontinued from the study due to somnolence.
🧓 Geriatric Use ▾
8.5Geriatric Use No overall differences in safety or effectiveness have been observed between elderly and other adult patients.
🆘 Overdosage ▾
10 OVERDOSAGE There have been reports of inadvertent overdosage with timolol ophthalmic solution resulting in systemic effects similar to those seen with systemic beta-adrenergic blocking agents such as dizziness, headache, shortness of breath, bradycardia, bronchospasm, and cardiac arrest. With the exception of hypotension, very limited information exists on accidental ingestion of brimonidine in adults. Symptoms of brimonidine overdose have been reported in neonates, infants, and children receiving brimonidine ophthalmic solutions as part of medical treatment of congenital glaucoma or by accidental oral ingestion [see Use in Specific Populations ( 8.4 )] .
Treatment of an oral overdose includes supportive and symptomatic therapy; a patent airway should be maintained.
🧬 Clinical Pharmacology ▾
12 C LINICAL PHARMACOLOGY
12.1Mechanism of Action COMBIGAN is comprised of two components: brimonidine tartrate and timolol. Each of these two components decreases elevated intraocular pressure, whether or not associated with glaucoma. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss.
The higher the level of intraocular pressure, the greater the likelihood of glaucomatous field loss and optic nerve damage. COMBIGAN is a relatively selective alpha-2 adrenergic receptor agonist with a non-selective beta-adrenergic receptor inhibitor. Both brimonidine and timolol have a rapid onset of action, with peak ocular hypotensive effect seen at two hours post-dosing for brimonidine and one to two hours for timolol.
Fluorophotometric studies in animals and humans suggest that brimonidine tartrate has a dual mechanism of action by reducing aqueous humor production and increasing uveoscleral outflow. Timolol maleate is a beta 1 and beta 2 adrenergic receptor inhibitor that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity.
12.3Pharmacokinetics Absorption Systemic absorption of brimonidine and timolol was assessed in healthy volunteers and patients following topical dosing with COMBIGAN. Normal volunteers dosed with one drop of COMBIGAN twice daily in both eyes for seven days showed peak plasma brimonidine and timolol concentrations of 30 pg/mL and 400 pg/mL, respectively. Plasma concentrations of brimonidine peaked at 1 to 4 hours after ocular dosing.
Peak plasma concentrations of timolol occurred approximately 1 to 3 hours post-dose. In a crossover study of COMBIGAN, brimonidine tartrate 0.2%, and timolol 0.5% administered twice daily for 7 days in healthy volunteers, the mean brimonidine area-under-the-plasma-concentration-time curve (AUC) for COMBIGAN was 128 ± 61 pg•hr/mL versus 141 ± 106 pg•hr/mL for the respective monotherapy treatments; mean C max values of brimonidine were comparable following COMBIGAN treatment versus monotherapy (32.7 ± 15 pg/mL versus 34.7 ± 22.6 pg/mL, respectively).
Mean timolol AUC for COMBIGAN was similar to that of the respective monotherapy treatment (2919 ± 1679 pg•hr/mL versus 2909 ± 1231 pg•hr/mL, respectively); mean C max of timolol was approximately 20% lower following COMBIGAN treatment versus monotherapy. In a parallel study in patients dosed twice daily with COMBIGAN, twice daily with timolol 0.5%, or three times daily with brimonidine tartrate 0.2%, one-hour post dose plasma concentrations of timolol and brimonidine were approximately 30-40% lower with COMBIGAN than their respective monotherapy values.
The lower plasma brimonidine concentrations with COMBIGAN appears to be due to twice-daily dosing for COMBIGAN versus three-times dosing with brimonidine tartrate 0.2%. Distribution The protein binding of timolol is approximately 60%. The protein binding of brimonidine is approximately 29%.
Elimination Metabolism In humans, brimonidine is extensively metabolized by the liver. Timolol is partially metabolized by the liver. Excretion In the crossover study in healthy volunteers, the plasma concentration of brimonidine declined with a systemic half-life of approximately 3 hours.
The apparent systemic half-life of timolol was about 7 hours after ocular administration. Urinary excretion is the major route of elimination of brimonidine and its metabolites. Approximately 87% of an orally-administered radioactive dose of brimonidine was eliminated within 120 hours, with 74% found in the urine.
Unchanged timolol and its metabolites are excreted by the kidney. Special Populations Patients with Renal Impairment COMBIGAN has not been studied in patients with renal impairment. A study of patients with renal failure showed that timolol was not readily removed by dialysis.
The effect of dialysis on brimonidine pharmacokinetics in patients with renal f…
🧬 Mechanism of Action ▾
12.1Mechanism of Action COMBIGAN is comprised of two components: brimonidine tartrate and timolol. Each of these two components decreases elevated intraocular pressure, whether or not associated with glaucoma. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss.
The higher the level of intraocular pressure, the greater the likelihood of glaucomatous field loss and optic nerve damage. COMBIGAN is a relatively selective alpha-2 adrenergic receptor agonist with a non-selective beta-adrenergic receptor inhibitor. Both brimonidine and timolol have a rapid onset of action, with peak ocular hypotensive effect seen at two hours post-dosing for brimonidine and one to two hours for timolol.
Fluorophotometric studies in animals and humans suggest that brimonidine tartrate has a dual mechanism of action by reducing aqueous humor production and increasing uveoscleral outflow. Timolol maleate is a beta 1 and beta 2 adrenergic receptor inhibitor that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity.
📦 How Supplied / Storage and Handling ▾
16 H OW SUPPLIED/STORAGE AND HANDLING COMBIGAN is supplied sterile, in white opaque plastic LDPE bottles and tips, with blue high impact polystyrene (HIPS) caps as follows: 5 mL in 10 mL bottle NDC 0023-9211-05 10 mL in 10 mL bottle NDC 0023-9211-10 15 mL in 15 mL bottle NDC 0023-9211-15 Storage: Store at 15°C to 25°C (59°F to 77°F). Protect from light. Replace the cap after use.
📋 Description ▾
11 D ESCRIPTION COMBIGAN (brimonidine tartrate and timolol maleate ophthalmic solution) 0.2%/0.5%, sterile, contains brimonidine tartrate, a relatively selective alpha-2 adrenergic receptor agonist, and timolol maleate, a non-selective beta-adrenergic receptor inhibitor (topical intraocular pressure lowering agent) for topical ophthalmic use. The structural formulae are: Brimonidine tartrate: 5-bromo-6-(2-imidazolidinylideneamino) quinoxaline L-tartrate; MW= 442.24 Timolol maleate: (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5-thiadiazol-3-yl)-oxy]-2-propanol maleate (1:1) (salt); MW= 432.50 as the maleate salt In solution, COMBIGAN has a clear, greenish-yellow color.
It has an osmolality of 260-330 mOsmol/kg and a pH during its shelf life of 6.5-7.3. Brimonidine tartrate appears as an off-white, or white to pale-yellow powder and is soluble in both water (1.5 mg/mL) and in the product vehicle (3 mg/mL) at pH 7.2. Timolol maleate appears as a white, odorless, crystalline powder and is soluble in water, methanol, and alcohol.
Each mL of COMBIGAN contains the active ingredients brimonidine tartrate 0.2% and timolol 0.5% (6.8 mg/mL timolol maleate) with the inactive ingredients benzalkonium chloride 0.005%; sodium phosphate, monobasic; sodium phosphate, dibasic; purified water; and hydrochloric acid and/or sodium hydroxide to adjust pH. Brimonidine tartrate: Timolol maleate:
💬 Information for Patients ▾
17 P ATIENT COUNSELING INFORMATION Advise patients with bronchial asthma, a history of bronchial asthma, severe chronic obstructive pulmonary disease, sinus bradycardia, second or third degree atrioventricular block, or cardiac failure to not take this product [see Contraindications ( 4.1 , 4.2 )] . Handling the Container Instruct patients that ocular solutions, if handled improperly or if the tip of the dispensing container contacts the eye or surrounding structures, can become contaminated by common bacteria known to cause ocular infections.
Serious damage to the eye and subsequent loss of vision may result from using contaminated solutions or by inadvertent contact with the dropper tip [see Warnings and Precautions ( 5.10 )] . Always replace the cap after using. If solution changes color or becomes cloudy, do not use.
Do not use the product after the expiration date marked on the bottle. When to S eek Physician Advice Advise patients that if they have ocular surgery or develop an intercurrent ocular condition (e.g., trauma or infection), they should immediately seek their physician's advice concerning the continued use of the present multidose container. Use with Other Ophthalmic Drugs If more than one topical ophthalmic drug is being used, the drugs should be administered at least five minutes apart.
Contact Lens Use Patients should be advised that COMBIGAN contains benzalkonium chloride which may be absorbed by soft contact lenses. Contact lenses should be removed prior to administration of the solution. Lenses may be reinserted 15 minutes following administration of COMBIGAN.
Potential for Decreased Mental Alertness As with other similar medications, COMBIGAN may cause fatigue and/or drowsiness in some patients. Patients who engage in hazardous activities should be cautioned of the potential for a decrease in mental alertness. Distributed by: AbbVie Inc.
North Chicago, IL 60064 © 2026 AbbVie. All rights reserved. COMBIGAN and its design are trademarks of Allergan, Inc., an AbbVie company.
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