The antibiotic Cayston is prescribed for the treatment of a certain bacterial infection in people who have cystic fibrosis. By preventing the bacteria from growing and multiplying, this drug can help improve respiratory symptoms, such as wheezing, coughing, and mucus production. It comes as a powder that is inhaled three times daily. A stuffy nose and sore throat are some of the possible side effects.
What Is Cayston?
Cayston® (aztreonam for inhalation solution) is a prescription medication approved to improve respiratory symptoms, such as coughing, wheezing, and mucus production, in people with cystic fibrosis who have an infection with the bacteria Pseudomonas aeruginosa. P. aeruginosa is one of the most common causes of chronic lung infections in people with cystic fibrosis.
Cayston contains the antibiotic aztreonam. It belongs to a class of antibiotics known as monobactams. The medication is used in a nebulizer, which is a device that turns liquid medicine into a fine mist that can be inhaled into the lungs. Aztreonam is also available in an injectable form called Azactam® (aztreonam injection), which is used to treat various infections, including infections of the urinary tract, skin, and lungs.
As mentioned, Cayston is an antibiotic medicine that works by killing bacteria. It does this by preventing the bacteria from making their cell walls. Because bacteria need their cell walls to survive, this medicine causes the bacteria to die.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Cayston [package insert]. Foster City, CA: Gilead Sciences, Inc.;2012 October.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed June 20, 2013.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed June 20, 2013.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 8th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2008.
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