Generic Tobradex ST Availability
Last updated on Apr 10, 2025.
See also: Generic TobraDex
Tobradex ST is a brand name of dexamethasone/tobramycin ophthalmic, approved by the FDA in the following formulation(s):
TOBRADEX ST (dexamethasone; tobramycin - suspension/drops;ophthalmic)
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Manufacturer: HARROW EYE
Approval date: February 13, 2009
Strength(s): 0.05%;0.3% [RLD]
Is there a generic version of Tobradex ST available?
No. There is currently no therapeutically equivalent version of Tobradex ST available in the United States.
Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Tobradex ST. These medications may be counterfeit and potentially unsafe. If you purchase medications online, be sure you are buying from a reputable and valid online pharmacy. Ask your health care provider for advice if you are unsure about the online purchase of any medication.
See also: Generic Drug FAQ.
Related patents
Patents are granted by the U.S. Patent and Trademark Office at any time during a drug's development and may include a wide range of claims.
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Topical ophthalmic compositions containing tobramycin and dexamethasone
Patent 7,795,316
Issued: September 14, 2010
Inventor(s): Kabra; Bhagwati P.
Assignee(s): Alcon Research, Ltd. (Fort Worth, TX)Ophthalmic pharmaceutical compositions containing tobramycin, dexamethasone and deacetylated xanthan gum are described. The compositions provide longer ocular retention for enhanced ocular bioavailability of tobramycin and dexamethasone. In a preferred embodiment, the compositions also provide for improved suspension of dexamethasone. The concentration of ionizable species in the compositions is controlled so as to prevent precipitation of the xanthan gum as a result of ionic interactions between tobramycin and xanthan gum, while allowing for a restoration of viscosity upon topical application of the compositions to the eye. The use of deacetylated xanthan gum is disclosed, so as to avoid formulation instability caused by pH drift during storage.
Patent expiration dates:
- August 3, 2028✓✓
- August 3, 2028
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Topical ophthalmic compositions containing tobramycin and dexamethasone
Patent 8,101,582
Issued: January 24, 2012
Inventor(s): Kabra Bhagwati P.
Assignee(s): Alcon Research, Ltd.Ophthalmic pharmaceutical compositions containing tobramycin, dexamethasone and deacetylated xanthan gum are described. The compositions provide longer ocular retention for enhanced ocular bioavailability of tobramycin and dexamethasone. In a preferred embodiment, the compositions also provide for improved suspension of dexamethasone. The concentration of ionizable species in the compositions is controlled so as to prevent precipitation of the xanthan gum as a result of ionic interactions between tobramycin and xanthan gum, while allowing for a restoration of viscosity upon topical application of the compositions to the eye. The use of deacetylated xanthan gum is disclosed, so as to avoid formulation instability caused by pH drift during storage.
Patent expiration dates:
- December 19, 2027✓✓
- December 19, 2027
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Topical ophthalmic compositions containing tobramycin and dexamethasone
Patent 8,450,287
Issued: May 28, 2013
Inventor(s): Kabra Bhagwati P.
Assignee(s): Alcon Research, Ltd.Ophthalmic pharmaceutical compositions containing tobramycin, dexamethasone and deacetylated xanthan gum are described. The compositions provide longer ocular retention for enhanced ocular bioavailability of tobramycin and dexamethasone. In a preferred embodiment, the compositions also provide for improved suspension of dexamethasone. The concentration of ionizable species in the compositions is controlled so as to prevent precipitation of the xanthan gum as a result of ionic interactions between tobramycin and xanthan gum, while allowing for a restoration of viscosity upon topical application of the compositions to the eye. The use of deacetylated xanthan gum is disclosed, so as to avoid formulation instability caused by pH drift during storage.
Patent expiration dates:
- December 19, 2027✓
- December 19, 2027
More about Tobradex ST (dexamethasone / tobramycin ophthalmic)
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Glossary
Term | Definition |
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Drug Patent | A drug patent is assigned by the U.S. Patent and Trademark Office and assigns exclusive legal right to the patent holder to protect the proprietary chemical formulation. The patent assigns exclusive legal right to the inventor or patent holder, and may include entities such as the drug brand name, trademark, product dosage form, ingredient formulation, or manufacturing process A patent usually expires 20 years from the date of filing, but can be variable based on many factors, including development of new formulations of the original chemical, and patent infringement litigation. |
Drug Exclusivity | Exclusivity is the sole marketing rights granted by the FDA to a manufacturer upon the approval of a drug and may run simultaneously with a patent. Exclusivity periods can run from 180 days to seven years depending upon the circumstance of the exclusivity grant. |
RLD | A Reference Listed Drug (RLD) is an approved drug product to which new generic versions are compared to show that they are bioequivalent. A drug company seeking approval to market a generic equivalent must refer to the Reference Listed Drug in its Abbreviated New Drug Application (ANDA). By designating a single reference listed drug as the standard to which all generic versions must be shown to be bioequivalent, FDA hopes to avoid possible significant variations among generic drugs and their brand name counterpart. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.