Skip to Content

Join the 'Definity' group to help and get support from people like you.

Definity News

Medicines Are Biggest Culprit in Fatal Allergic Reactions: Study

Posted 10 Oct 2014 by Drugs.com

THURSDAY, Oct. 9, 2014 – Although food allergies have garnered a lot of attention lately, a new study reports that medications are actually the biggest cause of sudden deaths related to allergy. Over a little more than a decade, nearly 60 percent of the allergy-related deaths were caused by medications, while less than 7 percent were caused by food allergies, the study found. "Medications can be dangerous," said study researcher Dr. Elina Jerschow, director of the Drug Allergy Center at Montefiore Medical Center and assistant professor of medicine at Albert Einstein College of Medicine, in New York City. While research from other countries has reported medications as a major culprit in anaphylaxis-related deaths, Jerschow said, the problem has been less defined in the United States. One reason is that there is no national registry for anaphylaxis deaths, she said. The study was ... Read more

Related support groups: Provera, Depo-Provera, Amoxicillin, Metronidazole, Doxycycline, Cephalexin, Clindamycin, Penicillin, Methotrexate, Azithromycin, Bactrim, Cipro, Ciprofloxacin, Accutane, Augmentin, Levaquin, Lupron, Flagyl, Keflex, Zithromax

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

Posted 17 Jul 2008 by Drugs.com

[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 ... Read more

Related support groups: Optison, Definity

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

Posted 1 Nov 2007 by Drugs.com

[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 ... Read more

Related support groups: Optison, Definity

Ask a Question

Further Information

Related Condition Support Groups

Echocardiography

Definity Patient Information at Drugs.com