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3.14.2017 | Logan Blare

In a variety of in vitro and in vivo bacterial and mammalian cell assays, betaxolol HCl was nonmutagenic.

Supplied as follows: 2.5, 5, 10 and 15 mL in plastic ophthalmic DROP-TAINER dispensers. Betoptic Ophthalmic Solution is a sterile, isotonic, aqueous solution of betaxolol hydrochloride.

Betaxolol is an adrenergic blocking agent; therefore, caution should be exercised in patients using concomitant adrenergic psychotropic drugs.

WADA Class WADA Anti-Doping Classification.

5 mL: NDC 15 mL: NDC.

Approval History 10+ years FDA approved 1985.

Betoptic Ophthalmic Solution has been well tolerated in glaucoma patients wearing hard or soft contact lenses and in aphakic patients.

Consideration should be given to the gradual withdrawal of beta-adrenergic blocking agents prior to general anesthesia because of the reduced ability of the heart to respond to beta-adrenergically mediated sympathetic reflex stimuli.

Hypersensitivity to any component of this product. Betoptic Ophthalmic Solution is contraindicated in patients with sinus bradycardia, greater than a first degree atrioventricular block, cardiogenic shock, or patients with overt cardiac failure.

Ophthalmic betaxolol has minimal effect on pulmonary and cardiovascular parameters. When instilled in the eye, Betoptic Ophthalmic Solution has the action of reducing elevated as well as normal intraocular pressure, whether or not accompanied by glaucoma.

Betoptic Sterile Ophthalmic Solution contains betaxolol hydrochloride, a cardioselective beta-adrenergic receptor blocking agent, in a sterile isotonic solution. Betaxolol hydrochloride is a white, crystalline powder, soluble in water, with a molecular weight of 343.89. The chemical structure is presented below:.

These include:. Systemic reactions following administration of Betoptic Ophthalmic Solution 0.5% or Betoptic S Ophthalmic Suspension 0.25% have been rarely reported.

Beta-adrenergic receptor blocking agents may mask the signs and symptoms of acute hypoglycemia. 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.

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97:86, 1984. 1 Schoene, R. et al., Am. B. Ophthal. J.

Patients suspected of developing thyrotoxicosis should be managed carefully to avoid abrupt withdrawal of beta-adrenergic blocking agents, which might precipitate a thyroid storm. Beta-adrenergic blocking agents may mask certain clinical signs (e.g., tachycardia) of hyperthyroidism.

Hives, toxic epidermal necrolysis, hair loss and glossitis.

When the Betoptic Ophthalmic Solution is used to reduce elevated intraocular pressure in angle-closure glaucoma, it should be used with a miotic and not alone. In patients with angle-closure glaucoma, the immediate treatment objective is to reopen the angle by constriction of the pupil with a miotic agent. Betaxolol has little or no effect on the pupil.

Close observation of the patients 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 bradycardia.

Patients who are receiving a beta-adrenergic blocking agent orally and Betoptic Ophthalmic Solution should be observed for a potential additive effect either on the intraocular pressure or on the known systemic effects of beta blockade.

Additionally, the action of isoproteranol, a beta stimulant, administered at the end of the study was not inhibited by ophthalmic betaxolol. In contrast, ophthalmic timolol significantly decreased these pulmonary functions. Betaxolol HCl had no significant effect on pulmonary function as measured by FEV 1. Forced Vital Capacity (FVC) and FEV 1 /VC. Ophthalmic betaxolol (one drop in each eye) was compared to timolol and placebo in a three-way crossover study challenging nine patients with reactive airway disease who were selected on the basis of having at least a 15% reduction in the forced expiratory volume in one second (FEV 1 ) after administration of ophthalmic timolol.

Topically applied beta-adrenergic blocking agents may be absorbed systemically. 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 with topical application of beta-adrenergic blocking agents. The same adverse reactions found with systemic administration of beta-adrenergic blocking agents may occur with topical administration.

Reproduction, teratology, and peri- and postnatal studies have been conducted with orally administered betaxolol HCl in rats and rabbits. Pregnancy Category C. Betaxolol HCl was not shown to be teratogenic, however, and there were no other adverse effects on reproduction at subtoxic dose levels. There was evidence of drug related postimplantation loss in rabbits and rats at dose levels above 12 mg/kg and 128 mg/kg, respectively. Betoptic Ophthalmic Solution should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. There are no adequate and well-controlled studies in pregnant women.

Generic Name: betaxolol hydrochloride Dosage Form: ophthalmic solution.

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Store at room temperature Rx Only.

Betoptic Ophthalmic Solution has the action of reducing elevated as well as normal intraocular pressure, and the mechanism of ocular hypotensive action appears to be a reduction of aqueous production as demonstrated by tonography and aqueous fluorophotometry. Optic nerve head damage and visual field loss are the result of a sustained elevated intraocular pressure and poor ocular perfusion. A single dose provides a 12-hour reduction in intraocular pressure. The onset of action with Betoptic Ophthalmic Solution can generally be noted within 30 minutes and the maximal effect can usually be detected 2 hours after topical administration. Clinical observation of glaucoma patients treated with Betoptic Ophthalmic Solution for up to three years shows that the intraocular pressure lowering effect is well maintained.

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Caution should be used in treating patients with a history of cardiac failure or heart block. Betoptic Ophthalmic Solution has been shown to have a minor effect on heart rate and blood pressure in clinical studies. Treatment with Betoptic Ophthalmic Solution should be discontinued at the first signs of cardiac failure.

4,252,984; 4,311,708; 4,342,783 ALCON OPHTHALMIC ALCON LABORATORIES, INC. Patents Nos. U.S.

a Twice the clinical concentration.

Safety and effectiveness in pediatric patients have not been established.

Information for Patients. Do not touch dropper tip to any surface as this may contaminate the solution.

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Lifetime studies with betaxolol HCl have been completed in mice at oral doses of 6, 20 or 60 mg/kg/day and in rats at 3, 12, or 48 mg/kg/day; betaxolol HCl demonstrated no carcinogenic effect. Higher dose levels were not tested.

ophthalmic glaucoma agents Lumigan, timolol ophthalmic, Travatan, latanoprost ophthalmic, Xalatan, epinephrine ophthalmic.

Empirical Formula: C 18 H 29 NO 3 •HCl Chemical Name: (±)-1-[p-phenoxy]-3-(isopropylamino)-2-propanol hydrochloride.

Glaucoma, Open Angle Lumigan, timolol ophthalmic, Travatan, latanoprost ophthalmic, Xalatan, epinephrine ophthalmic, brimonidine ophthalmic, Alphagan, Cosopt, Azopt, dorzolamide ophthalmic, pilocarpine ophthalmic, More.

In patients with severe impairment of myocardial function, beta-adrenergic receptor antagonists may inhibit the sympathetic stimulatory effect necessary to maintain adequate cardiac function. Orally administered beta-adrenergic blocking agents reduce cardiac output in healthy subjects and patients with heart disease. Betaxolol HCl, a cardioselective (beta-1-adrenergic) receptor blocking agent, does not have significant membrane-stabilizing (local anesthetic) activity and is devoid of intrinsic sympathomimetic action.

Fort Worth, Texas 76134 USA Printed in USA.

b Inhaled at 240 minutes; measurement at 270 minutes.

The symptoms which might be expected with an overdose of a systemically administered beta-1-adrenergic receptor blocker agent are bradycardia, hypotension and acute cardiac failure. The oral LD 50 of the drug ranged from 350-920 mg/kg in mice and mg/kg in rats. A topical overdose of Betoptic Ophthalmic Solution may be flushed from the eye(s) with warm tap water. No information is available on overdosage of humans.

CSA Schedule N Not a controlled drug.

In clinical studies Betoptic was safely used to lower intraocular pressure in 47 patients with both glaucoma and reactive airway disease who were followed for a mean period of 15 months. However, caution should be used in treating patients with severe reactive airway disease or a history of asthma.

a Twice the clinical concentration.

Betoptic Ophthalmic Solution has also been used successfully in glaucoma patients who have undergone a laser trabeculoplasty and have needed additional long-term ocular hypotensive therapy.

Oph. 1 Atkins, J. 99:173-175, Feb., 1985. M. et. al., Am. J.

Each mL of Betoptic Ophthalmic Solution (0.5%) contains: Active : 5.6 mg betaxolol hydrochloride equivalent to betaxolol base 5 mg. Preservative : Benzalkonium Chloride 0.01%. DM-00. Inactive : Edetate Disodium, Sodium Chloride, Hydrochloric Acid and/or Sodium Hydroxide (to adjust pH), and Purified Water.

It is not known whether betaxolol HCl is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when BEOPTIC Ophthalmic Solution is administered to nursing women.

In controlled, double-masked studies, the magnitude and duration of the ocular hypotensive affect of Betoptic Ophthalmic Solution and ophthalmic timolol solution were clinically equivalent. Clinical studies show that topical Betoptic Ophthalmic Solution reduces mean intraocular pressure 25% from baseline. In trials using 22 mmHg as a generally accepted index of intraocular pressure control, Betoptic Ophthalmic Solution was effective in more than 94% of the population studied, of which 73% were treated with the beta blocker alone.

Mean arterial blood pressure was not affected by any treatment; however, ophthalmic timolol produced a significant decrease in the mean heart rate. No evidence of cardiovascular beta-adrenergic blockade during exercise was observed with betaxolol in a double-masked, three-way crossover study in 24 normal subjects comparing ophthalmic betaxolol, timolol and placebo for effect on blood pressure and heart rate.

Beta-adrenergic blockade has been reported to potentiate muscle weakness consistent with certain myasthenic symptoms (e.g., diplopla, ptosis, and generalized weakness).

The following adverse reactions have been reported in clinical trials with Betoptic Ophthalmic Solution.

The recommended dose is one to two drops of Betoptic Ophthalmic Solution in the affected eye(s) twice daily. In some patients, the intraocular pressure lowering responses to Betoptic Ophthalmic Solution may require a few weeks to stabilize. As with any new medication, careful monitoring of patients is advised.

2.5 mL: NDC 10 mL: NDC.

Bradycardia, heart block and congestive failure.

Additional medical events reported with other formulations of betaxolol include blurred vision, foreign body sensation, dryness of the eyes, inflammation, discharge, ocular pain, decreased visual acuity, and crusty lashes.

Pregnancy Category C Risk cannot be ruled out.

Insomnia, dizziness, vertigo, headaches, depression, lethargy, and increase in signs and symptoms of myasthenia gravis.

*Mean pulse rate significantly lower for timolol than betaxolol or placebo (p < 0.05).

Pulmonary distress characterized by dyspnea, bronchospasm, thickened bronchial secretions, asthma and respiratory failure.

*Timolol statistically different from betaxolol and placebo (p < 0.05).

There have been reports of asthmatic attacks and pulmonary distress during betaxolol treatment. Caution should be exercised in the treatment of glaucoma patients with excessive restriction of pulmonary function. Although rechallenges of some such patients with ophthalmic betaxolol has not adversely affected pulmonary function test results, the possibility of adverse pulmonary effects in patients sensitive to beta blockers cannot be ruled out.

If the intraocular pressure of the patient is not adequay controlled on this regimen, concomitant therapy with pilocarpine and other miotics, and/or epinephrine and/or carbonic anhydrase inhibitors can be instituted.

Betoptic Ophthalmic Solution has been shown to be effective in lowering intraocular pressure and is indicated in the treatment of ocular hypertension and chronic open-angle glaucoma. It may be used alone or in combination with other anti-glaucoma drugs.

Discomfort of short duration was experienced by one in four patients, but none discontinued therapy; occasional tearing has been reported. Rare instances of decreased corneal sensitivity, erythema, itching sensation, corneal punctate staining, keratitis, anisocoria, edema, and photophobia have been reported.

Thus, patients with central lenticular opacities avoid the visual impairment caused by a constricted pupil. Betoptic Ophthalmic Solution does not produce miosis or accommodative spasm which are frequently seen with miotic agents. The blurred vision and night blindness often associated with standard miotic therapy are not associated with Betoptic Ophthalmic Solution.

Availability Rx Prescription only.

While taking beta-blockers, patients with a history of atopy or a history of severe anaphylactic reaction 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.