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Definity FDA Alerts

The FDA Alerts below may be specifically about Definity or relate to a group or class of drugs which include Definity.

MedWatch Safety Alerts are distributed by the FDA and published by Drugs.com. Following is a list of possible medication recalls, market withdrawals, alerts and warnings.

Recent FDA Alerts for Definity

Micro-bubble Contrast Agents (marketed as Definity (Perflutren Lipid Microsphere) Injectable Suspension and Optison (Perflutren Protein-Type A Microspheres for Injection)

[Posted 07/17/2008] FDA is updating healthcare professionals about recent changes made to the Boxed Warning, Warnings, and Contraindications sections of the prescribing information for micro-bubble contrast agents, a sterile suspension of perflutren gas microspheres, indicated for use in certain patients with suboptimal echocardiograms, to opacify the left ventricular chamber and to improve the delineation of the left ventricular endocardial border.These changes reflect conclusions of FDA reviews of information received following the addition of new contraindications and warnings in October 2007. The revised Boxed Warning and Warnings highlight the risk of serious cardiopulmonary reactions during or within 30 minutes following the administration of these products and recommend that high risk patients with pulmonary hypertension or unstable cardiopulmonary conditions be closely monitored during and for at least 30 minutes post administration of these contrast agents. In addition, several of the Contraindications that were added to the labeling in October, 2007 were removed because FDA determined that, in some patients, the benefits from the diagnostic information obtained through the use of Definity or Optison may outweigh the risk for serious cardiopulmonary reactions, even among some patients at particularly high risk for these reactions.

[July 17, 2008 - Information for Healthcare Professionals - FDA]

Micro-bubble Contrast Agents (marketed as Definity (Perflutren Lipid Microsphere) Injectable Suspension and Optison (Perflutren Protein-Type A Microsp

[Posted 10/12/2007] FDA has received reports of deaths and serious cardiopulmonary reactions following the administration of ultrasound micro-bubble contrast agents used in echocardiography. Four of the 11 reported deaths were caused by cardiac arrest occurring either during infusion or within 30 minutes following the administration of the contrast agent; most of the serious but non-fatal reactions also occurred in this time frame. As a result, the manufacturers of Definity and Optison have agreed to revise the labeling for these products in order to optimize their safe use.

Revised labeling includes changes to the following sections: BOXED WARNING, CONTRAINDICATIONS, WARNINGS, and a statement in the INDICATIONS section cautioning that the safety and efficacy of the use of Definity with exercise or pharmacological stress testing have not been established. Together these labeling changes emphasize the risk for serious cardiopulmonary reactions, and that the use of these products is contraindicated in patients with unstable cardiopulmonary status, including patients with unstable angina, acute myocardial infarction, respiratory failure, or recent worsening congestive heart failure.

[October 12, 2007 - Information for Healthcare Professionals - FDA]


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