Featured Research

from universities, journals, and other organizations

Allergic Reactions To Plavix Can Be Treated With Steroids And Antihistamines, Study Shows

Date:
April 7, 2009
Source:
Thomas Jefferson University
Summary:
A clinical study of cardiac patients who suffered an allergic reaction to the widely-prescribed drug clopidogrel, also known by the pharmaceutical name Plavix, found that treatment with a combination of steroids and antihistamines can alleviate the allergic reaction symptoms thereby allowing patients to remain on the drug.

A clinical study of cardiac patients who suffered an allergic reaction to the widely-prescribed drug clopidogrel, also known by the pharmaceutical name Plavix, found that treatment with a combination of steroids and antihistamines can alleviate the allergic reaction symptoms thereby allowing patients to remain on the drug, say doctors from Thomas Jefferson University Hospital. The study followed 24 patients, who developed Plavix allergies after undergoing coronary stent procedures.

Eighty-eight percent (21 of 24) were able to stay on Plavix uninterrupted after being treated with the antihistamines and a short course of steroids. Primary Investigator Michael P. Savage, M.D., director, Cardiac Catheterization Laboratory at Thomas Jefferson University Hospital and Kimberly L. Campbell, M.D., cardiology fellow and lead author, presented their findings at the American College of Cardiology's Annual Scientific Session on March 30 2009.

"This is a very important study for many cardiac patients but especially those with stents," said Savage. "Every patient who receives a stent must take Plavix to help prevent stent thrombosis which is clotting of the stent. This obviously poses major problems if the patient suffers an allergic reaction to the medication. To discontinue taking the drug can lead to a heart attack which may be fatal. Those with a drug eluting stent are required to be on the drug for at least one year. Our patients with drug eluting stents actually averaged 17 months on Plavix versus the minimum of one year. That's a very long time to not be on a medication that may save your life."

Plavix is one of the most prescribed drugs world-wide. Data from 2007 shows Plavix is the fourth most sold drug in the United States with almost four billion dollars in sales, according to IMS Health, a leading pharmaceutical industry monitoring company. It is estimated that about six percent of those taking the drug showed some signs of an allergic reaction.

John R. Cohn, M.D., chief of Adult Allergy at Thomas Jefferson University and Hospitals and a key contributor to the study noted, "Previously, when patients had an allergic reaction to Plavix we would give an alternative drug but they can have their own side effects. Rather than giving the secondary drug we concentrated on suppressing the patient's allergic symptoms they were having to Plavix by administering low doses of steroids and antihistamines while continuing the drug. What we found was that most of our patients became tolerant to Plavix, essentially becoming 'desensitized' to the drug enabling them to continue treatment. Once this occurred we were able to discontinue the steroids and even the antihistamines."

Previous anecdotal studies showed some evidence that patients could be desensitized to Plavix, but this is the first systematic study to demonstrate allergy to the drug could be managed without stopping the drug after a reaction was found.

"The saying goes 'necessity is the mother of invention' and that's exactly what we have here," said Campbell. "Plavix is a necessity in treating many cardiac patients, especially those with stents. Patients with allergic reactions have few alternatives and stopping Plavix can result in life-threatening complications. We needed to find a way to keep Plavix-allergic cardiac patients on this drug to help ensure positive cardiovascular outcomes and in this small group we did. Hopefully, in the future, we can expand the study and investigate ways to apply this in treating allergic reactions to other life-saving drugs."


Story Source:

The above story is based on materials provided by Thomas Jefferson University. Note: Materials may be edited for content and length.


Cite This Page:

Thomas Jefferson University. "Allergic Reactions To Plavix Can Be Treated With Steroids And Antihistamines, Study Shows." ScienceDaily. ScienceDaily, 7 April 2009. <www.sciencedaily.com/releases/2009/03/090330102521.htm>.
Thomas Jefferson University. (2009, April 7). Allergic Reactions To Plavix Can Be Treated With Steroids And Antihistamines, Study Shows. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2009/03/090330102521.htm
Thomas Jefferson University. "Allergic Reactions To Plavix Can Be Treated With Steroids And Antihistamines, Study Shows." ScienceDaily. www.sciencedaily.com/releases/2009/03/090330102521.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pregnancy Spacing Could Have Big Impact On Autism Risks

Pregnancy Spacing Could Have Big Impact On Autism Risks

Newsy (Oct. 1, 2014) A new study says children born less than one year and more than five years after a sibling can have an increased risk for autism. Video provided by Newsy
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com
Insertable Cardiac Monitor

Insertable Cardiac Monitor

Ivanhoe (Oct. 1, 2014) A heart monitor the size of a paperclip that can save your life. The “Reveal Linq” allows a doctor to monitor patients with A-Fib on a continuous basis for up to 3 years! Video provided by Ivanhoe
Powered by NewsLook.com
Attacking Superbugs

Attacking Superbugs

Ivanhoe (Oct. 1, 2014) Two weapons hospitals can use to attack superbugs. Scientists in Ireland created a new gel resistant to superbugs, and a robot that can disinfect a room in minutes. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins