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Trifluridine
Pronunciation
U.S. Brand Names
Generic Available
Synonyms
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Drug Interactions
Stability
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
(trye FLURE i deen)

U.S. Brand Names
Viroptic® Ophthalmic

Generic Available

No


Synonyms
F3T; Trifluorothymidine

Pharmacological Index

Antiviral Agent, Ophthalmic


Use

Treatment of primary keratoconjunctivitis and recurrent epithelial keratitis caused by herpes simplex virus types I and II


Pregnancy Risk Factor

C


Contraindications

Known hypersensitivity to trifluridine or any component


Warnings/Precautions

Mild local irritation of conjunctival and cornea may occur when instilled but usually transient effects


Adverse Reactions

1% to 10%: Local: Burning, stinging

<1%: Hyperemia, palpebral edema, epithelial keratopathy, keratitis, stromal edema, increased intraocular pressure, hypersensitivity reactions


Drug Interactions

No data reported


Stability

Refrigerate at 2°C to 8°C (36°F to 46°F); storage at room temperature may result in a solution altered pH which could result in ocular discomfort upon administration and/or decreased potency


Mechanism of Action

Interferes with viral replication by incorporating into viral DNA in place of thymidine, inhibiting thymidylate synthetase resulting in the formation of defective proteins


Pharmacodynamics/Kinetics

Absorption: Ophthalmic instillation: Systemic absorption is negligible, while corneal penetration is adequate


Usual Dosage

Adults: Instill 1 drop into affected eye every 2 hours while awake, to a maximum of 9 drops/day, until re-epithelialization of corneal ulcer occurs; then use 1 drop every 4 hours for another 7 days; do not exceed 21 days of treatment; if improvement has not taken place in 7-14 days, consider another form of therapy


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

For ophthalmic use only. Store in refrigerator; do not use discolored solution. Apply prescribed amount as often as directed. Wash hands before using and do not let tip of applicator touch eye or contaminate tip of applicator. Tilt head back and look upward. Gently pull down lower lid and put drop(s) in inner corner of eye. Close eye and roll eyeball in all directions. Do not blink for 1/2 minute. Apply gentle pressure to inner corner of eye for 30 seconds. Wipe away excess from skin around eye. Do not use any other eye preparation for at least 10 minutes. Do not touch tip of applicator to eye or contaminate tip of applicator. Do not share medication with anyone else. May cause sensitivity to bright light (dark glasses may help); temporary stinging or blurred vision may occur. Inform prescriber if you experience eye pain, redness, burning, watering, dryness, double vision, puffiness around eye, vision disturbances, or other adverse eye response; worsening of condition or lack of improvement within 7-14 days. Pregnancy/breast-feeding precautions: Inform prescriber if you are pregnant. Consult prescriber if breast-feeding.


Nursing Implications

Monitor ophthalmologic exam (test for corneal staining with fluorescein or rose bengal)


Dosage Forms

Solution, ophthalmic: 1% (7.5 mL)


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