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Metipranolol
Overview
What is Metipranolol?
Metipranolol ophthalmic solution 0.3% is a sterile solution that contains metipranolol, a non-selective beta-adrenergic receptor blocking agent. Metipranolol is a white, odorless, crystalline powder. The chemical name of metipranolol is (±)-1-(4-Hydroxy-2, 3,5-trimethylphenoxy)-3-(isopropylamino)-2-propanol-4-acetate.
The chemical structural of metipranolol is:
Each mL of metipranolol ophthalmic solution, for ophthalmic administration, contains 3 mg metipranolol. INACTIVES: povidone, glycerol, hydrochloric acid, sodium chloride, edetate disodium, and purified water. Sodium Hydroxide may be added to adjust pH. PRESERVATIVE ADDED: Benzalkonium chloride 0.004%. DM-00
What does Metipranolol look like?
What are the available doses of Metipranolol?
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What should I talk to my health care provider before I take Metipranolol?
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How should I use Metipranolol?
Metipranolol ophthalmic solution is indicated in the treatment of elevated intraocular pressure in patients with ocular hypertension or open angle glaucoma.
The recommended dose is one drop of metipranolol ophthalmic solution in the affected eye(s) twice a day.
If the patient's IOP is not at a satisfactory level on this regimen, use of more frequent administration or a larger dose of metipranolol ophthalmic solution is not known to be of benefit. Concomitant therapy to lower intraocular pressure can be instituted.
In clinical trials, metipranolol ophthalmic solution was safely used during concomitant therapy with pilocarpine, epinephrine, or acetazolamide.
What interacts with Metipranolol?
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What are the warnings of Metipranolol?
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What are the precautions of Metipranolol?
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What are the side effects of Metipranolol?
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What should I look out for while using Metipranolol?
Hypersensitivity to any component of this product.
Metipranolol ophthalmic solution is contraindicated in patients with bronchial asthma or a history of bronchial asthma, or severe chronic obstructive pulmonary disease; symptomatic sinus bradycardia; greater than a first degree atrioventricular block; cardiogenic shock; or overt cardiac failure.
As with other topically applied ophthalmic drugs, this drug may be absorbed systemically. Thus, the same adverse reactions found with systemic administration of beta-adrenergic blocking agents may occur with topical administration. 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 following topical application of beta-adrenergic blocking agents (see ).
Since metipranolol ophthalmic solution had a minor effect on heart rate and blood pressure in clinical studies, caution should be observed in treating patients with a history of cardiac failure. Treatment with metipranolol ophthalmic solution should be discontinued at the first evidence of cardiac failure.
Metipranolol ophthalmic solution, or other beta-blockers, should not, in general, be administered to patients with chronic obstructive pulmonary disease (e.g., chronic bronchitis, emphysema) of mild or moderate severity (see ). However, if the drug is necessary in such patients, then it should be administered with caution since it may block bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta receptors.
What might happen if I take too much Metipranolol?
No information is available on overdosage of metipranolol ophthalmic solution in humans. The symptoms which might be expected with an overdose of a systemically administered beta-adrenergic receptor blocking agent are bradycardia, hypotension and acute cardiac failure.
How should I store and handle Metipranolol?
Store bottles at controlled room temperature, 59° to 86°F (15° to 30°C) and dispense in tight, light-resistant containers (USP).Metipranolol ophthalmic solution 0.3% is supplied in a plastic bottle with a controlled drop tip and a white plastic screw-top cap as follows:5mL: NDC 61314-447-0510mL: NDC 61314-447-10Storage: FOR TOPICAL OPHTHALMIC USE ONLYMetipranolol ophthalmic solution 0.3% is supplied in a plastic bottle with a controlled drop tip and a white plastic screw-top cap as follows:5mL: NDC 61314-447-0510mL: NDC 61314-447-10Storage: FOR TOPICAL OPHTHALMIC USE ONLYMetipranolol ophthalmic solution 0.3% is supplied in a plastic bottle with a controlled drop tip and a white plastic screw-top cap as follows:5mL: NDC 61314-447-0510mL: NDC 61314-447-10Storage: FOR TOPICAL OPHTHALMIC USE ONLYMetipranolol ophthalmic solution 0.3% is supplied in a plastic bottle with a controlled drop tip and a white plastic screw-top cap as follows:5mL: NDC 61314-447-0510mL: NDC 61314-447-10Storage: FOR TOPICAL OPHTHALMIC USE ONLYMetipranolol ophthalmic solution 0.3% is supplied in a plastic bottle with a controlled drop tip and a white plastic screw-top cap as follows:5mL: NDC 61314-447-0510mL: NDC 61314-447-10Storage: FOR TOPICAL OPHTHALMIC USE ONLY
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Metipranolol blocks beta and beta (non-selective) adrenergic receptors. It does not have significant intrinsic sympathomimetic activity, and has only weak local anesthetic (membrane-stabilizing) and myocardial depressant activity.
Orally administered beta-adrenergic blocking agents reduce cardiac output in both healthy subjects and patients with heart disease. In patients with severe impairment of myocardial function, beta-adrenergic receptor antagonists may inhibit the sympathetic stimulatory effect necessary to maintain adequate cardiac output.
Beta-adrenergic receptor blockade in the bronchi and bronchioles may result in significantly increased airway resistance from unopposed para-sympathetic activity. Such an effect is potentially dangerous in patients with asthma or other bronchospastic conditions (see and ).
Metipranolol when applied topically in the eye, has the action of reducing elevated as well as normal intraocular pressure (IOP), whether or not accompanied by glaucoma. Elevated intraocular pressure is a major risk factor in the pathogenesis of glaucomatous visual field loss. The higher the level of intraocular pressure, the greater the likelihood of glaucomatous visual field loss and optic nerve damage.
The primary mechanism of the ocular hypotensive action of metipranolol is most likely due to reduction in aqueous humor production. A slight increase in outflow may be an additional mechanism. Metipranolol reduces IOP with little or no effect on pupil size or accommodation.
In controlled studies of patients with intraocular pressure greater than 24 mmHg at baseline, metipranolol ophthalmic solution reduced the average intraocular pressure approximately 20 - 26%.
The onset of action of metipranolol ophthalmic solution, as measured by a reduction in intraocular pressure, occurs within 30 minutes after a single administration. The maximum effect occurs at about 2 hours. A reduction in intraocular pressure can be demonstrated 24 hours after a single dose. Clinical studies in patients with glaucoma treated for up to two years indicate that an intraocular pressure lowering effect is maintained.
Non-Clinical Toxicology
Hypersensitivity to any component of this product.Metipranolol ophthalmic solution is contraindicated in patients with bronchial asthma or a history of bronchial asthma, or severe chronic obstructive pulmonary disease; symptomatic sinus bradycardia; greater than a first degree atrioventricular block; cardiogenic shock; or overt cardiac failure.
As with other topically applied ophthalmic drugs, this drug may be absorbed systemically. Thus, the same adverse reactions found with systemic administration of beta-adrenergic blocking agents may occur with topical administration. 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 following topical application of beta-adrenergic blocking agents (see ).
Since metipranolol ophthalmic solution had a minor effect on heart rate and blood pressure in clinical studies, caution should be observed in treating patients with a history of cardiac failure. Treatment with metipranolol ophthalmic solution should be discontinued at the first evidence of cardiac failure.
Metipranolol ophthalmic solution, or other beta-blockers, should not, in general, be administered to patients with chronic obstructive pulmonary disease (e.g., chronic bronchitis, emphysema) of mild or moderate severity (see ). However, if the drug is necessary in such patients, then it should be administered with caution since it may block bronchodilation produced by endogenous and exogenous catecholamine stimulation of beta receptors.
Metipranolol ophthalmic solution should be used with caution in patients who are receiving a beta-adrenergic blocking agent orally, because of the potential for additive effects on systemic beta-blockade.
Close observation of the patient 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.
Caution should be used in the coadministration of beta-adrenergic receptor blocking agents, such as metipranolol, and oral or intravenous calcium channel antagonists, because of possible precipitation of left ventricular failure, and hypotension. In patients with impaired cardiac function, who are receiving calcium channel antagonists, coadministration should be avoided.
The concomitant use of beta-adrenergic receptor blocking agents with digitalis and calcium channel antagonists may have additive effects, prolonging atrioventricular conduction time.
Caution should be used in patients using concomitant adrenergic psychotropic drugs.
Ocular
Because of potential effects of beta-adrenergic receptor blocking agents relative to blood pressure and pulse, these agents should be used with caution in patients with cerebrovascular insufficiency. If signs or symptoms suggesting reduced cerebral blood flow develop following initiation of therapy with metipranolol ophthalmic solution, alternative therapy should be considered.
Some authorities recommend gradual withdrawal of beta-adrenergic receptor blocking agents in patients undergoing elective surgery. If necessary during surgery, the effects of beta-adrenergic receptor blocking agents may be reversed by sufficient doses of such agonists as isoproterenol, dopamine, dobutamine or levarterenol.
While metipranolol ophthalmic solution has demonstrated a low potential for systemic effect, it should be used with caution in patients with diabetes (especially labile diabetes) because of possible masking of signs and symptoms of acute hypoglycemia.
Beta-adrenergic receptor blocking agents may mask certain signs and symptoms of hyperthyroidism, and their abrupt withdrawal might precipitate a thyroid storm.
Beta-adrenergic blockade has been reported to potentiate muscle weakness consistent with certain myasthenic symptoms (e.g., diplopia, ptosis, and generalized weakness).
Risk of anaphylactic reaction: While taking beta-blockers, patients with a history of severe anaphylactic reaction to a variety of allergens may be more reactive to repeated challenge, either accidental, diagnostic, or therapeutic. Such patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction.
In clinical trials, the use of metipranolol ophthalmic solution has been associated with transient local discomfort.
Other ocular adverse reactions, such as abnormal vision, blepharitis, blurred vision, browache, conjunctivitis, edema, eyelid dermatitis, photophobia, tearing, and uveitis have been reported in small numbers of patients.
Other systemic adverse reactions, such as allergic reaction, angina, anxiety, arthritis, asthenia, atrial fibrillation, bradycardia, bronchitis, coughing, depression, dizziness, dyspnea, epistaxis, headache, hypertension, myalgia, myocardial infarct, nausea, nervousness, palpitation, rash, rhinitis, and somnolence have also been reported in small numbers of patients.
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
While we update our database periodically, we cannot guarantee it is always updated to the latest version.
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