Brimonidinedrug info
brimonidine tartrate 2 MG/ML / timolol 5 MG/ML Ophthalmic Solution [Combigan]
What it is used for
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.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective March 17, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
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:
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective March 17, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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