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

Pronunciation
(toe bra MYE sin & deks a METH a sone)

U.S. Brand Names
TobraDex® Ophthalmic

Generic Available

No


Synonyms
Dexamethasone and Tobramycin

Pharmacological Index

Antibiotic/Corticosteroid, Ophthalmic


Use

Treatment of external ocular infection caused by susceptible gram-negative bacteria and steroid responsive inflammatory conditions of the palpebral and bulbar conjunctiva, lid, cornea, and anterior segment of the globe


Pregnancy Risk Factor

B


Adverse Reactions

1% to 10%:

Ocular: Lacrimation, itching, edema of eyelid, keratitis, increased intraocular pressure, glaucoma, cataract formation


Drug Interactions

Refer to individual monographs for Tobramycin and Dexamethasone


Mechanism of Action

Refer to individual monographs for Dexamethasone and Tobramycin


Pharmacodynamics/Kinetics

Absorption: Absorbed into the aqueous humor

Time to peak serum concentration: 1-2 hours after instillation in the cornea and aqueous humor


Usual Dosage

Children and Adults: Ophthalmic: Instill 1-2 drops of solution every 4 hours; apply ointment 2-3 times/day; for severe infections apply ointment every 3-4 hours, or solution 2 drops every 30-60 minutes initially, then reduce to less frequent intervals


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

Shake well before using, do not touch dropper to eye, apply light finger pressure on lacrimal sac for 1 minute following instillation; notify physician if condition fails to improve or worsens


Nursing Implications

Shake well before using, do not touch dropper to eye, apply light finger pressure on lacrimal sac for 1 minute following instillation; notify physician if condition fails to improve or worsens


Dosage Forms

Ointment, ophthalmic: Tobramycin 0.3% and dexamethasone 0.1% (3.5 g)

Suspension, ophthalmic: Tobramycin 0.3% and dexamethasone 0.1% (2.5 mL, 5 mL)


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