Skip to main content

ALPHAGAN P

Generic: brimonidine tartrate

Verified·Apr 23, 2026
Manufacturer
Allergan
NDC
0023-9177
RxCUI
861204
Route
OPHTHALMIC
ICD-10 indication
H40.10

Affordability Check

How much will you actually pay for ALPHAGAN P?

In 30 seconds, see every legitimate way to afford ALPHAGAN P — Medicare copay, manufacturer copay card, Patient Assistance Program, grants, or cash.

Check my options →

About ALPHAGAN P

What is this medication?

Alphagan P is an ophthalmic solution primarily used to lower high pressure inside the eye in patients diagnosed with open-angle glaucoma or ocular hypertension. The active ingredient in this medication is brimonidine tartrate, which belongs to a class of drugs known as alpha-adrenergic agonists. By reducing the internal pressure of the eye, this treatment helps prevent potential damage to the optic nerve and assists in preserving long-term vision for individuals at risk of sight loss due to elevated intraocular pressure.

The medication works through a dual mechanism to manage eye pressure effectively. It functions by decreasing the amount of fluid produced within the eye while simultaneously increasing the flow of fluid that drains out of the eye. Alphagan P is specifically formulated with a preservative called Purite, which is intended to be gentler on the ocular surface than some other formulations. It is typically administered as drops directly into the affected eye according to a specific dosing schedule provided by a healthcare professional.

Copay & patient assistance

  • Patient Copay Amount: As little as $15 per 30-, 60-, or 90-day supply
  • Maximum Annual Benefit Limit: Not Publicly Available
  • Core Eligibility Restrictions: Offer valid for commercially insured patients only. Not valid for patients enrolled in Medicare, Medicaid, or other state or federal healthcare programs.
  • RxBIN, PCN, and Group numbers: Not Publicly Available

External links go directly to the manufacturer's portal. RxCopays does not receive compensation for referrals.

Compare pricing elsewhere

RxCopays doesn't sell drugs or take referral fees. Here are the transparent-pricing directories we recommend checking alongside your insurance formulary.

We deep-link because transparency helps patients. None of these partners pay RxCopays.

Prescribing information

From the FDA-approved label for ALPHAGAN P. Official source: DailyMed (NLM) · Label effective Sep 18, 2025

Indications and usage
1 INDICATIONS AND USAGE ALPHAGAN P (brimonidine tartrate ophthalmic solution) 0.1% or 0.15% is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. ALPHAGAN P is an alpha adrenergic agonist indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. ( 1 )
Dosage and administration
2 DOSAGE AND ADMINISTRATION The recommended dosage is one drop of ALPHAGAN P in the affected eye(s) three times daily, approximately 8 hours apart. ALPHAGAN P may be used concomitantly with other topical ophthalmic drug products to lower intraocular pressure. 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) three times daily, approximately 8 hours apart. ( 2 )
Contraindications
4 CONTRAINDICATIONS Neonates and infants (pediatric patients younger than 2 years old). ( 4.1 ) Hypersensitivity Reactions. ( 4.2 ) 4.1 Neonates and Infants (Pediatric Patients Younger than 2 Years Old) ALPHAGAN P is contraindicated in neonates and infants (pediatric patients younger than 2 years old) [see Use in Specific Populations ( 8.4 )]. 4.2 Hypersensitivity Reactions ALPHAGAN P is contraindicated in patients who have exhibited a hypersensitivity reaction to any component of this medication in the past.
Warnings and precautions
5 WARNINGS AND PRECAUTIONS Potentiation of vascular insufficiency. ( 5.1 ) 5.1 Potentiation of Vascular Insufficiency ALPHAGAN P may potentiate syndromes associated with vascular insufficiency. ALPHAGAN P should be used with caution in patients with depression, cerebral or coronary insufficiency, Raynaud’s phenomenon, orthostatic hypotension, or thromboangiitis obliterans. 5.2 Severe Cardiovascular Disease Although brimonidine tartrate ophthalmic solution had minimal effect on the blood pressure of patients in clinical studies, caution should be exercised in treating patients with severe cardiovascular disease. 5.3 Contamination of Topical Ophthalmic Products After Use There have been reports of bacterial keratitis associated with the use of multiple-dose containers of topical ophthalmic products. These containers had been inadvertently contaminated by patients who, in most cases, had a concurrent corneal disease or a disruption of the ocular epithelial surface. Do not touch the tip of the dispensing container to the eye or surrounding structures. Serious damage to the eye and subsequent loss of vision may result from using contaminated solutions [ see P atient C ounseling I nformation ( 17 )] .
Drug interactions
7 DRUG INTERACTIONS Antihypertensives/cardiac glycosides may lower blood pressure. ( 7.1 ) Use with CNS depressants may result in an additive or potentiating effect. ( 7.2 ) Tricyclic antidepressants may potentially blunt the hypotensive effect of systemic clonidine. ( 7.3 ) Monoamine oxidase inhibitors may result in increased hypotension. ( 7.4 ) 7.1 Antihypertensives/Cardiac Glycosides Because ALPHAGAN P may reduce blood pressure, caution in using drugs such as antihypertensives and/or cardiac glycosides with ALPHAGAN P is advised. 7.2 CNS Depressants Although specific drug interaction studies have not been conducted with ALPHAGAN P, the possibility of an additive or potentiating effect with CNS depressants (alcohol, barbiturates, opiates, sedatives, or anesthetics) should be considered. 7.3 Tricyclic 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 ALPHAGAN P in humans can lead to resulting interference with the IOP lowering effect. Caution is advised in patients taking tricyclic antidepressants which can affect the metabolism and uptake of circulating amines. 7.4 Monoamine 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 is advised in patients taking MAO inhibitors which can affect the metabolism and uptake of circulating amines.
Adverse reactions
6 ADVERSE REACTIONS The following serious adverse reactions are described elsewhere in the labeling: Potentiation of Vascular Insufficiency [ see Warnings and Precautions ( 5.1 ) ] Severe Cardiovascular Disease [ see Warnings and Precautions ( 5.2 ) ] Contamination of Topical Ophthalmic Products after Use [ see Warnings and Precautions ( 5.3 ) ] Neonates and Infants (Pediatric Patients Younger than 2 Years Old) [ see Contraindications ( 4.1 ) ] Most common adverse reactions occurring in approximately 5% to 20% of patients receiving brimonidine ophthalmic solution (0.1% to 0.2%) included allergic conjunctivitis, burning sensation, conjunctival folliculosis, conjunctival hyperemia, eye pruritus, hypertension, ocular allergic reaction, oral dryness, and visual disturbance. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact AbbVie at 1-800-678-1605 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical 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. Adverse reactions occurring in approximately 10% to 20% of the subjects receiving brimonidine ophthalmic solution (0.1% to 0.2%) included: allergic conjunctivitis, conjunctival hyperemia, and eye pruritus. Adverse reactions occurring in approximately 5% to 9% included: burning sensation, conjunctival folliculosis, hypertension, ocular allergic reaction, oral dryness, and visual disturbance. Adverse reactions occurring in approximately 1% to 4% of the subjects receiving brimonidine ophthalmic solution (0.1% to 0.2%) included: abnormal taste, allergic reaction, asthenia, blepharitis, blepharoconjunctivitis, blurred vision, bronchitis, cataract, conjunctival edema, conjunctival hemorrhage, conjunctivitis, cough, dizziness, dyspepsia, dyspnea, epiphora, eye discharge, eye dryness, eye irritation, eye pain, eyelid edema, eyelid erythema, fatigue, flu syndrome, follicular conjunctivitis, foreign body sensation, gastrointestinal disorder, headache, hypercholesterolemia, hypotension, infection (primarily colds and respiratory infections), insomnia, keratitis, lid disorder, pharyngitis, photophobia, rash, rhinitis, sinus infection, sinusitis, somnolence, stinging, superficial punctate keratopathy, tearing, visual field defect, vitreous detachment, vitreous disorder, vitreous floaters, and worsened visual acuity. The following reactions were reported in less than 1% of subjects: corneal erosion, hordeolum, nasal dryness, and taste perversion. 6.2 Postmarketing Experience The following reactions have been identified during postapproval use of brimonidine tartrate ophthalmic solutions. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Bradycardia, depression, hypersensitivity, iritis, keratoconjunctivitis sicca, miosis, nausea, skin reactions (including erythema, eyelid pruritus, rash, and vasodilation), syncope, and tachycardia. Apnea, coma, hypotension, hypothermia, hypotonia, lethargy, pallor, respiratory depression, and somnolence have been reported in infants receiving brimonidine tartrate ophthalmic solutions.
Use in pregnancy
8.1 Pregnancy Risk Summary There are no adequate and well-controlled studies with ALPHAGAN P in pregnant women. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. In animal studies, brimonidine crossed the placenta and entered into the fetal circulation to a limited extent (see Data ) . Because animal reproduction studies are not always predictive of human response, ALPHAGAN P should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the fetus. 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 offspring while breastfeeding. Animal Data Embryofetal studies were conducted in pregnant rabbits administered brimonidine tartrate by daily oral gavage on gestation days 6 to 18, to target the period of organogenesis. Brimonidine caused miscarriage at 5 mg/kg/day (approximately 70- or 50-times the recommended human ophthalmic dose [RHOD] based on AUC, respectively for brimonidine tartrate 0.1% and 0.15%). The no observed adverse effect level (NOAEL) for developmental toxicity in rabbits was 1 mg/kg/day (approximately 9- and 6-fold the RHOD based on AUC, respectively for brimonidine tartrate 0.1% and 0.15%). No treatment-related malformations were observed in rabbits. Signs of maternal sedation and fatigue were observed at all dose levels; the lowest observed adverse effect level (LOAEL) for maternal toxicity was 5 mg/kg/day, based on the dose response for these signs. Embryofetal studies were conducted in pregnant rats administered brimonidine tartrate by daily oral gavage on gestation days 6 to 15, to target the period of organogenesis. The NOAEL for developmental toxicity was 2.5 mg/kg/day (approximately 1100- and 750-fold the RHOD based on AUC, respectively for brimonidine tartrate 0.1% and 0.15%). No treatment-related malformations were observed in rats. The LOAEL for maternal toxicity was 2.5 mg/kg/day, based on signs of sedation and fatigue. The maternal NOAEL was 1.0 mg/kg/day (250- and 180-fold the RHOD based on AUC, respectively for brimonidine tartrate 0.1% and 0.15%). After pregnant rats received a single oral dose of 14 C-brimonidine tartrate, brimonidine and metabolites crossed the placenta and were detectable in fetal blood and organs.

Label text is reproduced as-is from the FDA-approved label. We do not paraphrase, summarize, or omit. Content above is for informational purposes only and is not medical advice. Always consult your prescribing clinician or pharmacist before making decisions about your medication.

Conditions we've indexed resources for

Click a condition to see copay cards, grants, and PA rules specific to it. For the full list of FDA-approved indications, see Prescribing information above.

Medicare Part D coverage

How ALPHAGAN P appears across Medicare Part D plan formularies nationally. Source: CMS monthly Prescription Drug Plan file (2026-04-30).

Covered by plans

25%

1,403 of 5,509 plans

Most common tier

Tier 3

On 93% of covering formularies

Prior authorization required

0%

of covering formularies

TierFormularies on this tierShare
Tier 1 (preferred generic)2
7%
Tier 3 (preferred brand)28
93%

Step therapy: 0% of formularies

Quantity limits: 7% of formularies

Coverage breadth: 30 of 65 formularies

How to read this:plans on the same formulary share tier + PA rules. Your specific plan's copay depends on (a) the tier above, (b) your plan's cost-share for that tier, (c) whether you're in the initial coverage phase or past the 2026 $2,000 out-of-pocket cap. For your exact plan, check its Summary of Benefits or log in to your Medicare.gov account. Copay cards don't apply to Medicare (federal law).

Prior authorization & coverage

PayerPAStep therapyCopay tier

Medicare Part D

Related drugs

How this page is sourced

  • Drug identity verified against openFDA NDC Directory.
  • Label text (when shown) originates from NLM DailyMed.
  • Copay and assistance URLs verified periodically; if you hit a broken link, tell us.