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Look Up > Drugs > Metipranolol
Metipranolol
Pronunciation
U.S. Brand Names
Generic Available
Synonyms
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Overdosage/Toxicology
Drug Interactions
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Patient Information
Nursing Implications
Dosage Forms

Pronunciation
(met i PRAN oh lol)

U.S. Brand Names
OptiPranolol® Ophthalmic

Generic Available

No


Synonyms
Metipranolol Hydrochloride

Pharmacological Index

Beta Blocker, Nonselective; Ophthalmic Agent, Antiglaucoma


Use

Agent for lowering intraocular pressure in patients with chronic open-angle glaucoma


Pregnancy Risk Factor

C


Contraindications

Bronchial asthma, sinus bradycardia, second and third degree A-V block, cardiac failure, cardiogenic shock, hypersensitivity to betaxolol or any component, pregnancy


Warnings/Precautions

Use with caution in patients with cardiac failure or diabetes mellitus, asthma, bradycardia, or A-V block


Adverse Reactions

>10%: Ocular: Mild ocular stinging and discomfort, eye irritation

1% to 10%: Ocular: Blurred vision, browache

<1%: Bradycardia, A-V block, congestive heart failure, erythema, weakness, conjunctivitis, blepharitis, tearing, itching eyes, keratitis, photophobia, decreased corneal sensitivity, bronchospasm


Overdosage/Toxicology

Symptoms of overdose include bradycardia, hypotension, A-V block

Sympathomimetics (eg, epinephrine or dopamine), glucagon or a pacemaker can be used to treat the toxic bradycardia, asystole, and/or hypotension; initially, fluids may be the best treatment for toxic hypotension


Drug Interactions

No data reported


Mechanism of Action

Beta-adrenoceptor-blocking agent; lacks intrinsic sympathomimetic activity and membrane-stabilizing effects and possesses only slight local anesthetic activity; mechanism of action of metipranolol in reducing intraocular pressure appears to be via reduced production of aqueous humor. This effect may be related to a reduction in blood flow to the iris root-ciliary body. It remains unclear if the reduction in intraocular pressure observed with beta-blockers is actually secondary to beta-adrenoceptor blockade.


Pharmacodynamics/Kinetics

Onset of action: less than or equal to 30 minutes

Maximum effects: ~2 hours

Duration of action: Intraocular pressure reduction has persisted for 24 hours following ocular instillation

Metabolism: Rapid and complete to deacetyl metipranolol, an active metabolite

Half-life, elimination: ~3 hours


Usual Dosage

Ophthalmic: Adults: Instill 1 drop in the affected eye(s) twice daily


Mental Health: Effects on Mental Status

None reported


Mental Health: Effects on Psychiatric Treatment

None reported


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

No effects or complications reported


Patient Information

Intended for twice daily dosing; keep eye open and do not blink for 30 seconds after instillation; wear sunglasses to avoid photophobic discomfort


Nursing Implications

Monitor for systemic effect of beta-blockade


Dosage Forms

Solution, ophthalmic, as hydrochloride: 0.3% (5 mL, 10 mL)


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