Betaxolol 0.5% Eye prep

Indications

Betaxolol 0.5% Eye prep is used for: Glaucoma, Ocular hypertension

Adult Dose

Ophthalmic Open-angle glaucoma Adult: Instil 1 drop of 0.5% solution bid. Ocular hypertension Adult: Instil 1 drop of 0.5% solution bid.

Child Dose

Renal Dose

Administration

Contra Indications

Hypersensitivity.Sinus bradycardia, cardiogenic shock, overt cardiac failure. Pregnancy .

Precautions

DM, renal or hepatic impairment. May mask signs of hypoglycemia & hyperthyroidism. Gradual withdrawal is recommended. Children. Lactation: Excretion in milk unknown; use with caution

Pregnancy-Lactation

Pregnancy Category: C Lactation: Excretion in milk unknown; use with caution

Interactions

Increased risk of bradycardia w/ digitalis glycosides. May cause mydriasis w/ epinephrine. Potential additive effect w/ oral Ca channel blockers, alpha-adrenergic blockers, antiarrhythmics (including amiodarone), parasympathomimetics, guanethidine. Increased risk of myocardial depression and hypotension w/ peripheral muscle relaxants (e.g. tubocurarine).

Adverse Effects

Side effects of Betaxolol 0.5% Eye prep : >10% Ocular effects Short term discomfort (<25%) Frequency Not Defined Ocular Blurred vision, Corneal punctate keratitis, Itching and/or foreign body sensation erythema, Inflammation, Ocular pain and/or discharge, Ocular drynes, Photophobia Systemic Bradycardia, congestive heart failure, heart block, Depression, dizziness, headache, insomnia, lethargy, vertigo, Hair loss, hives, toxic epidermal necrolysis Glossitis, Bronchospasm, dyspnea, Increase in signs and symptoms of myasthenia gravis

Mechanism of Action

Betaxolol is a cardioselective beta-blocker which has greater affinity for beta1-receptors and has little or no effect on beta2-receptors. It lacks intrinsic sympathomimetic but has little membrane-stabilising activity. It also causes the reduction of intraocular pressure by decreasing the production of aqueous humour.