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

Pronunciation
(sye kloe PEN toe late)

U.S. Brand Names
AK-Pentolate®; Cyclogyl®; I-Pentolate®

Generic Available

No


Synonyms
Cyclopentolate Hydrochloride

Pharmacological Index

Anticholinergic Agent, Ophthalmic


Use

Diagnostic procedures requiring mydriasis and cycloplegia


Pregnancy Risk Factor

C


Contraindications

Narrow-angle glaucoma, known hypersensitivity to drug


Warnings/Precautions

2% solution may result in psychotic reactions and behavioral disturbances in children, usually occurring approximately 30-45 minutes after instillation; use with caution in elderly patients and other patients who may be predisposed to increased intraocular pressure


Adverse Reactions

1% to 10%:

Central nervous system: Restlessness, hallucinations, psychosis, hyperactivity, seizures, incoherent speech, ataxia

Dermatologic: Burning sensation

Ocular: Increase in intraocular pressure, loss of visual accommodation

Miscellaneous: Allergic reaction


Overdosage/Toxicology

Antidote, if needed, is pilocarpine


Drug Interactions

Decreased effect of carbachol, cholinesterase inhibitors


Stability

Store in tight containers


Mechanism of Action

Prevents the muscle of the ciliary body and the sphincter muscle of the iris from responding to cholinergic stimulation, causing mydriasis and cycloplegia


Pharmacodynamics/Kinetics

Peak effect: Cycloplegia: 25-75 minutes; Mydriasis: 30-60 minutes

Duration: Recovery takes up to 24 hours


Usual Dosage

Ophthalmic:

Children: Instill 1 drop of 0.5%, 1%, or 2% in eye followed by 1 drop of 0.5% or 1% in 5 minutes, if necessary

Adults: Instill 1 drop of 1% followed by another drop in 5 minutes; 2% solution in heavily pigmented iris


Administration

To avoid excessive systemic absorption, finger pressure should be applied on the lacrimal sac during and for 1-2 minutes following application


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

May cause blurred vision and increased sensitivity to light


Nursing Implications

Finger pressure should be applied to lacrimal sac for 1-2 minutes after instillation to decrease risk of absorption and systemic reactions


Dosage Forms

Solution, ophthalmic, as hydrochloride: 0.5% (2 mL, 5 mL, 15 mL); 1% (2 mL, 5 mL, 15 mL); 2% (2 mL, 5 mL, 15 mL)


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