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CAYSTON® is indicated to improve respiratory symptoms in cystic fibrosis (CF) patients with Pseudomonas aeruginosa. Safety and effectiveness have not been established in pediatric patients below the age of 7 years, patients with FEV1 < 25% or > 75% predicted, or patients colonized with Burkholderia cepacia [see Clinical Studies].
To reduce the development of drug-resistant bacteria and maintain the effectiveness of CAYSTON and other antibacterial drugs, CAYSTON should be used only to treat patients with CF known to have Pseudomonas aeruginosa in the lungs.
DOSAGE AND ADMINISTRATION
The recommended dose of CAYSTON for both adults and pediatric patients 7 years of age and older is one single-use vial (75 mg of aztreonam) reconstituted with 1 mL of sterile diluent administered 3 times a day for a 28-day course (followed by 28 days off CAYSTON therapy). Dosage is not based on weight or adjusted for age. Doses should be taken at least 4 hours apart.
CAYSTON is administered by inhalation using an Altera® Nebulizer System. Patients should use a bronchodilator before administration of CAYSTON.
Instructions for CAYSTON Reconstitution
CAYSTON should be administered immediately after reconstitution. Do not reconstitute CAYSTON until ready to administer a dose.
Take one amber glass vial containing CAYSTON and one diluent ampule from the carton. To open the glass vial, carefully remove the metal ring by pulling the tab and remove the gray rubber stopper. Twist the tip off the diluent ampule and squeeze the liquid into the glass vial. Replace the rubber stopper, then gently swirl the vial until contents have completely dissolved.
The empty vial, stopper, and diluent ampule should be disposed of properly upon completion of dosing.
Instructions for CAYSTON Administration
CAYSTON is administered by inhalation using an Altera Nebulizer System. CAYSTON should not be administered with any other nebulizer. CAYSTON should not be mixed with any other drugs in the Altera Nebulizer Handset.
CAYSTON is not for intravenous or intramuscular administration.
Patients should use a bronchodilator before administration of CAYSTON. Short-acting bronchodilators can be taken between 15 minutes and 4 hours prior to each dose of CAYSTON. Alternatively, long-acting bronchodilators can be taken between 30 minutes and 12 hours prior to administration of CAYSTON. For patients taking multiple inhaled therapies, the recommended order of administration is as follows: bronchodilator, mucolytics, and lastly, CAYSTON.
To administer CAYSTON, pour the reconstituted solution into the handset of the nebulizer system. Turn the unit on. Place the mouthpiece of the handset in your mouth and breathe normally only through your mouth. Administration typically takes between 2 and 3 minutes. Further patient instructions on how to administer CAYSTON are provided in the FDA-approved patient labeling. Instructions on testing nebulizer functionality and cleaning the handset are provided in the Instructions for Use included with the nebulizer system.
Dosage Forms And Strengths
A dose of CAYSTON consists of a single-use vial of sterile, lyophilized aztreonam (75 mg) reconstituted with a 1 mL ampule of sterile diluent (0.17% sodium chloride). Reconstituted CAYSTON is administered by inhalation.
Storage And Handling
Each kit for a 28-day course of CAYSTON contains 84 sterile vials of CAYSTON and 88 ampules of sterile diluent packed in 2 cartons, each carton containing a 14-day supply. The four additional diluent ampules are provided in case of spillage.
|Package Configuration||Dosage Strength||NDC No.|
|28-Day Kit||75 mg||61958-0901-1|
CAYSTON vials and diluent ampules should be stored in the refrigerator at 2 °C to 8 °C (36 °F to 46 °F) until needed. Once removed from the refrigerator, CAYSTON and diluent may be stored at room temperature (up to 25 °C/77 °F) for up to 28 days. Do not separate the CAYSTON vials from the diluent ampules. CAYSTON should be protected from light.
Do not use CAYSTON if it has been stored at room temperature for more than 28 days. Do not use CAYSTON beyond the expiration date stamped on the vial. Do not use diluent beyond the expiration date embossed on the ampule.
CAYSTON should be used immediately upon reconstitution. Do not reconstitute more than one dose at a time.
Do not use diluent or reconstituted CAYSTON if it is cloudy or if there are particles in the solution.
Manufactured by: Gilead Sciences, Inc., Foster City, CA 94404. Revised: September 2012
Last reviewed on RxList: 10/10/2012
This monograph has been modified to include the generic and brand name in many instances.
Additional Cayston Information
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