Generic Cayston Availability

Cayston is a brand name of aztreonam, approved by the FDA in the following formulation(s):

CAYSTON (aztreonam - for solution;inhalation)

  • Manufacturer: GILEAD
    Approval date: February 22, 2010
    Strength(s): 75MG/VIAL [RLD]

Has a generic version of Cayston been approved?

No. There is currently no therapeutically equivalent version of Cayston available in the United States.

Note: Fraudulent online pharmacies may attempt to sell an illegal generic version of Cayston. 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: About generic drugs.

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.

  • Inhalable aztreonam aerosol for treatment and prevention of pulmonary bacterial infections
    Patent 7,208,141
    Issued: April 24, 2007
    Inventor(s): Montgomery; Alan Bruce
    Assignee(s): Corus Pharma, Inc.
    A method and a composition for treatment of pulmonary bacterial infections caused by gram-negative bacteria suitable for treatment of infection caused by Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Pseudomonas aeruginosa, Haemophilus influenzae, Proteus mirabilis, Enterobacter species, Serratia marcescens as well as those caused by Burkholderia cepacia, Stenotrophomonas maltophilia, Alcaligenes xylosoxidans, and multidrug resistant Pseudomonas aeruginosa, using a concentrated formulation of aztreonam, or a pharmaceutically acceptable salt thereof, delivered as an aerosol or dry powder formulation.
    Patent expiration dates:
    • December 20, 2021
      ✓ 
      Patent use: IMPROVE RESPIRATORY SYMPTOMS IN CYSTIC FIBROSIS IN PATIENTS WITH PSEUDOMONAS AERUGINOSA
      ✓ 
      Drug product
  • Inhalable aztreonam lysinate formulation for treatment and prevention of pulmonary bacterial infections
    Patent 7,214,364
    Issued: May 8, 2007
    Inventor(s): Montgomery; Alan Bruce
    Assignee(s): Corus Pharma, Inc.
    A method and a composition for treatment of pulmonary bacterial infections caused by gram-negative bacteria suitable for treatment of infection caused by Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Pseudomonas aeruginosa, Haemophilus influenzae, Proteus mirabilis, Enterobacter species, Serratia marcescens as well as those caused by Burkholderia cepacia, Stenotrophomonas maltophilia, Alcaligenes xylosoxidans, and multidrug resistant Pseudomonas aeruginosa, using a concentrated formulation of aztreonam lysinate delivered as an aerosol or dry powder formulation.
    Patent expiration dates:
    • December 20, 2021
      ✓ 
      Drug product
  • Inhalable aztreonam lysinate formulation for treatment and prevention of pulmonary bacterial infections
    Patent 7,427,633
    Issued: September 23, 2008
    Inventor(s): Montgomery; Alan Bruce
    Assignee(s): Gilead Sciences, Inc.
    A method and a composition for treatment of pulmonary bacterial infections caused by gram-negative bacteria suitable for treatment of infection caused by Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Pseudomonas aeruginosa, Haemophilus influenzae, Proteus mirabilis, Enterobacter species, Serratia marcescens as well as those caused by Burkholderia cepacia, Stenotrophomonas maltophilia, Alcaligenes xylosoxidans, and multidrug resistant Pseudomonas aeruginosa, using a concentrated formulation of aztreonam lysinate delivered as an aerosol or dry powder formulation.
    Patent expiration dates:
    • December 20, 2021
      ✓ 
      Patent use: IMPROVE RESPIRATORY SYMPTOMS IN CYSTIC FIBROSIS IN PATIENTS WITH PSEUDOMONAS AERUGINOSA
      ✓ 
      Drug product
  • Inhalable aztreonam lysinate formulation for treatment and prevention of pulmonary bacterial infections
    Patent 8,399,496
    Issued: March 19, 2013
    Assignee(s): Gilead Sciences, Inc.
    A method and a composition for treatment of pulmonary bacterial infections caused by gram-negative bacteria suitable for treatment of infection caused by Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Pseudomonas aeruginosa, Haemophilus influenzae, Proteus mirabilis, Enterobacter species, Serratia marcescens as well as those caused by Burkholderia cepacia, Stenotrophomonas maltophilia, Alcaligenes xylosoxidans, and multidrug resistant Pseudomonas aeruginosa, using a concentrated formulation of aztreonam lysinate delivered as an aerosol or dry powder formulation.
    Patent expiration dates:
    • December 20, 2021
      ✓ 
      Patent use: IMPROVE RESPIRATORY SYMPTOMS IN CYSTIC FIBROSIS IN PATIENTS WITH PSEUDOMONAS AERUGINOSA
      ✓ 
      Drug product

Related Exclusivities

Exclusivity is exclusive marketing rights granted by the FDA upon approval of a drug and can run concurrently with a patent or not. Exclusivity is a statutory provision and is granted to an NDA applicant if statutory requirements are met.

  • Exclusivity expiration dates:
    • February 22, 2017 -

Glossary

TermDefinition
Drug PatentA 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 ExclusivityExclusivity 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.
RLDA 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.
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