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Drug Safety-related Labeling Changes (SrLC)

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TOBRADEX ST (NDA-050818)

(DEXAMETHASONE; TOBRAMYCIN)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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08/16/2022 (SUPPL-7)

Approved Drug Label (PDF)

5 Warnings and Precautions

Newly added subsections:

5.8 Vision Blurred

Vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle.

5.9 Risk of Contamination

Do not touch the dropper tip of the bottle to any surface, as this may contaminate the contents.

5.10 Contact Lens Use

TOBRADEX ST contains benzalkonium chloride, an antimicrobial preservative, that may be absorbed by soft contact lenses. Contact lenses should not be worn during the use of TOBRADEX ST.

6 Adverse Reactions

6.1 Clinical Trials Experience

Newly added information:

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Newly added to end of subsection:

The following additional adverse reactions have been reported with the individual components below:

Aminoglycosides: Neurotoxicity, ototoxicity, and nephrotoxicity have occurred in patients receiving systemic aminoglycoside therapy. Aminoglycosides may aggravate muscle weakness in patients with known or suspected neuromuscular disorders, such as myasthenia gravis or Parkinson’s disease, because of their potential effect on neuromuscular function.

Dexamethasone: Cushing’s syndrome and adrenal suppression may occur after use of dexamethasone in excess of the listed dosing instructions in predisposed patients, including children and patients treated with CYP3A4 inhibitors.

Newly added subsection:

6.2 Postmarketing Experience

The following adverse reactions have been identified during postapproval use of TOBRADEX ST. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Additional adverse reactions identified from postapproval use include, anaphylactic reaction, and erythema multiforme.

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:
There are no adequate and well-controlled studies in pregnant women. However, prolonged or repeated corticoid use during pregnancy has been associated with an increased risk of intra-uterine growth retardation. Infants born of mothers who have received substantial doses of corticosteroids during pregnancy should be observed carefully for signs of hypoadrenalism. TOBRADEX ST Ophthalmic Suspension should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus [see Nonclinical Toxicology (13.1)].

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Storage and Handling

Instruct the patient to store the bottle upright and away from light. Shake well before using [see Dosage and Administration (2.1) and How Supplied/Storage and Handling (16)].

Avoid Contamination

Instruct the patient not to touch dropper tip to any surface, as this may contaminate the contents [see Warnings and Precautions (5.9)].

Contact Lens Wear

Advise the patient that contact lenses should not be worn during the use of this product [see Warnings and Precautions (5.10)].

Newly added information:

Ability to Drive and Use Machines

Advise the patient that vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle [see Warnings and Precautions (5.8)].

08/16/2022 (SUPPL-8)

Approved Drug Label (PDF)

5 Warnings and Precautions

Newly added subsections:

5.8 Vision Blurred

Vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle.

5.9 Risk of Contamination

Do not touch the dropper tip of the bottle to any surface, as this may contaminate the contents.

5.10 Contact Lens Use

TOBRADEX ST contains benzalkonium chloride, an antimicrobial preservative, that may be absorbed by soft contact lenses. Contact lenses should not be worn during the use of TOBRADEX ST.

6 Adverse Reactions

6.1 Clinical Trials Experience

Newly added information:

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Newly added to end of subsection:

The following additional adverse reactions have been reported with the individual components below:

Aminoglycosides: Neurotoxicity, ototoxicity, and nephrotoxicity have occurred in patients receiving systemic aminoglycoside therapy. Aminoglycosides may aggravate muscle weakness in patients with known or suspected neuromuscular disorders, such as myasthenia gravis or Parkinson’s disease, because of their potential effect on neuromuscular function.

Dexamethasone: Cushing’s syndrome and adrenal suppression may occur after use of dexamethasone in excess of the listed dosing instructions in predisposed patients, including children and patients treated with CYP3A4 inhibitors.

Newly added subsection:

6.2 Postmarketing Experience

The following adverse reactions have been identified during postapproval use of TOBRADEX ST. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Additional adverse reactions identified from postapproval use include, anaphylactic reaction, and erythema multiforme.

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:
There are no adequate and well-controlled studies in pregnant women. However, prolonged or repeated corticoid use during pregnancy has been associated with an increased risk of intra-uterine growth retardation. Infants born of mothers who have received substantial doses of corticosteroids during pregnancy should be observed carefully for signs of hypoadrenalism. TOBRADEX ST Ophthalmic Suspension should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus [see Nonclinical Toxicology (13.1)].

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Storage and Handling

Instruct the patient to store the bottle upright and away from light. Shake well before using [see Dosage and Administration (2.1) and How Supplied/Storage and Handling (16)].

Avoid Contamination

Instruct the patient not to touch dropper tip to any surface, as this may contaminate the contents [see Warnings and Precautions (5.9)].

Contact Lens Wear

Advise the patient that contact lenses should not be worn during the use of this product [see Warnings and Precautions (5.10)].

Newly added information:

Ability to Drive and Use Machines

Advise the patient that vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle [see Warnings and Precautions (5.8)].

08/16/2022 (SUPPL-9)

Approved Drug Label (PDF)

5 Warnings and Precautions

Newly added subsections:

5.8 Vision Blurred

Vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle.

5.9 Risk of Contamination

Do not touch the dropper tip of the bottle to any surface, as this may contaminate the contents.

5.10 Contact Lens Use

TOBRADEX ST contains benzalkonium chloride, an antimicrobial preservative, that may be absorbed by soft contact lenses. Contact lenses should not be worn during the use of TOBRADEX ST.

6 Adverse Reactions

6.1 Clinical Trials Experience

Newly added information:

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

Newly added to end of subsection:

The following additional adverse reactions have been reported with the individual components below:

Aminoglycosides: Neurotoxicity, ototoxicity, and nephrotoxicity have occurred in patients receiving systemic aminoglycoside therapy. Aminoglycosides may aggravate muscle weakness in patients with known or suspected neuromuscular disorders, such as myasthenia gravis or Parkinson’s disease, because of their potential effect on neuromuscular function.

Dexamethasone: Cushing’s syndrome and adrenal suppression may occur after use of dexamethasone in excess of the listed dosing instructions in predisposed patients, including children and patients treated with CYP3A4 inhibitors.

Newly added subsection:

6.2 Postmarketing Experience

The following adverse reactions have been identified during postapproval use of TOBRADEX ST. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Additional adverse reactions identified from postapproval use include, anaphylactic reaction, and erythema multiforme.

8 Use in Specific Populations

8.1 Pregnancy

Additions and/or revisions underlined:
There are no adequate and well-controlled studies in pregnant women. However, prolonged or repeated corticoid use during pregnancy has been associated with an increased risk of intra-uterine growth retardation. Infants born of mothers who have received substantial doses of corticosteroids during pregnancy should be observed carefully for signs of hypoadrenalism. TOBRADEX ST Ophthalmic Suspension should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus [see Nonclinical Toxicology (13.1)].

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Storage and Handling

Instruct the patient to store the bottle upright and away from light. Shake well before using [see Dosage and Administration (2.1) and How Supplied/Storage and Handling (16)].

Avoid Contamination

Instruct the patient not to touch dropper tip to any surface, as this may contaminate the contents [see Warnings and Precautions (5.9)].

Contact Lens Wear

Advise the patient that contact lenses should not be worn during the use of this product [see Warnings and Precautions (5.10)].

Newly added information:

Ability to Drive and Use Machines

Advise the patient that vision may be temporarily blurred following dosing with TOBRADEX ST. Care should be exercised in operating machinery or driving a motor vehicle [see Warnings and Precautions (5.8)].