Alphalok Tablet
Ophthalmic Solution
Eskayef Pharmaceuticals Ltd.Generic:
Brimonidine TartrateWeight:
0.0015best Price:
৳ 664.00Generic
Brimonidine Tartrate
Pharmacology
Brimonidine is an α-2 adrenoreceptor agonist that is more selective for the α-2 adrenoreceptor than α-1. Topical administration of Brimonidine Tartrate eye drops decreases intraocular pressure (IOP) in humans. When used as directed Brimonidine Tartrate have the action of reducing elevated IOP with minimal effect on cardiovascular parametres. Brimonidine Tartrate eye drops have a rapid onset of action with the peak ocular hypotensive effect occurring at two hours post-dosing. The duration of effect is 12 hours or greater. Fluorophotometric studies in animals and humans suggest that Brimonidine Tartrate has a dual mechanism of action. Brimonidine Tartrate eye drops lower IOP by reducing aqueous humor production and enhancing uveoscleral outflow.
Dosage Administration
0.2% ophthalmic solution: The recommended dose is one drop of 0.2% ophthalmic solution in the affected eye(s) three times daily, approximately 8 hours apart. This ophthalmic solution may be used concomitantly with other topical ophthalmic drug products to lower intraocular pressure. If more than one topical ophthalmic product is being used, the products should be administered at least 5 minutes apart. 0.15% ophthalmic solution: The recommended dose is one drop of 0.15% ophthalmic solution in the affected eye(s) three times daily, approximately 8 hours apart. 0.025% ophthalmic solution: Instill 1 drop in the affected eye(s) every 6-8 hours. Do not use it more than 4 times daily. If more than one topical ophthalmic product is being used, the products should be administered at least 5 minutes apart.
Contraindications
Brimonidine Tartrate ophthalmic solution is contraindicated in patients with hypersensitivity to Brimonidine Tartrate. It is also contraindicated in patients receiving monoamine oxidase (MAO) inhibitor therapy.
Side Effects
Adverse events occurring in approximately 10-30% of the subjects, in descending order of incidence, included oral dryness, ocular hyperemia, burning and stinging, headache, blurring, foreign body sensation, fatigue/drowsiness, conjunctival follicles, ocular allergic reactions, and ocular pruritus. Events occurring in approximately 3-9% of the subjects, in descending order included corneal staining/erosion, photophobia, eyelid erythema, ocular ache/pain, ocular dryness, tearing, upper respiratory symptoms, eyelid edema, conjunctival edema, dizziness, blepharitis, ocular irritation, gastrointestinal symptoms, asthenia, conjunctival blanching, abnormal vision and muscular pain. The following adverse reactions were reported in less than 3% of the patients: lid crusting, conjunctival hemorrhage, abnormal taste, insomnia, conjunctival discharge, depression, hypertension, anxiety, palpitations/arrhythmias, nasal dryness and syncope.
Pregnancy And Lactation
There are no adequate and well-controlled studies in pregnant women. In animal studies, Brimonidine crossed the placenta and entered into the fetal circulation to a limited extent. Brimonidine Tartrate ophthalmic solution 0.2% should be used during pregnancy only if the potential benefit to the mother justifies the potential risk to the fetus. It is not known whether this drug is excreted in human milk; in animal studies Brimonidine Tartrate was excreted in breast milk. A decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
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