Generic Coly-Mycin S Availability
Last updated on May 7, 2025.
Coly-Mycin S is a brand name of colistin sulfate/hydrocortisone/neomycin/thonzonium bromide otic, approved by the FDA in the following formulation(s):
COLY-MYCIN S (colistin sulfate; hydrocortisone acetate; neomycin sulfate; thonzonium bromide - suspension/drops;otic)
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Manufacturer: ENDO OPERATIONS
Approved Prior to Jan 1, 1982
Strength(s): EQ 3MG BASE/ML;10MG/ML;EQ 3.3MG BASE/ML;0.5MG/ML [RLD]
Is there a generic version of Coly-Mycin S available?
No. There is currently no therapeutically equivalent version of Coly-Mycin S available in the United States.
Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Coly-Mycin S. 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.
More about Coly-Mycin S (colistin sulfate / hydrocortisone / neomycin / thonzonium bromide otic)
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- Drug class: otic steroids with anti-infectives
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Glossary
| Term | Definition |
|---|---|
| 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
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