Featured Research

from universities, journals, and other organizations

Common antibiotics pose a rare risk of severe liver injury in older patients

Date:
August 13, 2012
Source:
Canadian Medical Association Journal
Summary:
The commonly used broad-spectrum antibiotics moxifloxacin and levofloxacin are associated with an increased risk of severe liver injury in older people, according to a new study.

The commonly used broad-spectrum antibiotics moxifloxacin and levofloxacin are associated with an increased risk of severe liver injury in older people, according to a new study published in CMAJ (Canadian Medical Association Journal).

Moxifloxacin and levofloxacin are commonly prescribed "fluoroquinolone" antibiotics often used for bacterial infections such as respiratory infections, sinus infections and others. However, both the European Medicines Agency and Health Canada have issued warnings about the risk of liver injury from moxifloxacin, although there are few published studies on the safety of fluoroquinolones, especially related to liver damage.

Researchers from the Institute for Clinical Evaluative Sciences (ICES), Toronto; the University of Toronto and McMaster University, Hamilton, Ont., examined the risk of acute liver injury in patients taking moxifloxacin compared with those taking other antibiotics commonly used to treat respiratory tract infections. They looked at 9 years of data from Ontario to identify people aged 66 years or older with no history of liver disease who were admitted to hospital for liver injury within 30 days after receiving a prescription for these antibiotics. Excluding patients admitted for previous liver disease or recent hospitalization, 144 patients were admitted for acute liver injury, with the median time from the dispensing of the antibiotic to admission to hospital being 9 days. Eighty-eight (61.1%) of patients died during their index admission to hospital for liver injury.

"Compared with clarithromycin, moxifloxacin was associated with a more than 2-fold increased risk of admission to hospital for acute liver injury," writes Dr. David Juurlink, ICES, with coauthors. "Levofloxacin was also associated with a statistically significant but lower risk of hepatotoxicity than…moxifloxacin."

The authors note that, although these cases are serious, they are relatively rare, with about 6 cases for every 100 000 patients treated with the antibiotics.

The authors believe their findings are an important contribution to the evidence regarding the risks of these antibiotics. "Despite recent regulatory warnings regarding the hepatic safety of moxifloxacin, there is a lack of controlled studies supporting the notion that moxifloxacin presents a particular risk relative to other broad-spectrum antibiotic agents and, in particular, to other fluoroquinolones," write the authors.

They conclude: "Although our results require confirmation in other settings, the findings suggest that both moxifloxacin and levofloxacin be considered for regulatory warnings regarding acute liver injury."


Story Source:

The above story is based on materials provided by Canadian Medical Association Journal. Note: Materials may be edited for content and length.


Journal Reference:

  1. B. V. B. Reddy, D. Kallifidas, J. H. Kim, Z. Charlop-Powers, Z. Feng, S. F. Brady. Natural Product Biosynthetic Gene Diversity in Geographically Distinct Soil Microbiomes. Applied and Environmental Microbiology, 2012; 78 (10): 3744 DOI: 10.1128/AEM.00102-12

Cite This Page:

Canadian Medical Association Journal. "Common antibiotics pose a rare risk of severe liver injury in older patients." ScienceDaily. ScienceDaily, 13 August 2012. <www.sciencedaily.com/releases/2012/08/120813130621.htm>.
Canadian Medical Association Journal. (2012, August 13). Common antibiotics pose a rare risk of severe liver injury in older patients. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2012/08/120813130621.htm
Canadian Medical Association Journal. "Common antibiotics pose a rare risk of severe liver injury in older patients." ScienceDaily. www.sciencedaily.com/releases/2012/08/120813130621.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Thousands Who Can't Afford Medical Care Flock to Free US Clinic

Thousands Who Can't Afford Medical Care Flock to Free US Clinic

AFP (July 23, 2014) America may be the world’s richest country, but in terms of healthcare, the World Health Organisation ranks it 37th. Thousands turned out for a free clinic run by "Remote Area Medical" with a visit from the Governor of Virginia. Duration: 2:40 Video provided by AFP
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. Video provided by Newsy
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:
from the past week

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