News Video | Policy | GPs | Hospitals | Medical | Mental Health | Welfare | Search

 


Muscle damage risk from cholesterol-lowering drug rare

16 May 2014

Serious muscle damage risk from widely used cholesterol lowering drug very low in general population: Otago research

New Zealanders taking a higher dose of simvastatin, one of the statin drugs used to prevent heart attacks and strokes, have a greater risk of rhabdomyolysis than people taking a lower dose according to new University of Otago research. However the condition, in which breakdown of muscle tissue can lead to acute kidney failure, is still very rare in both groups.

In a new study published in the journal International Journal of Cardiology, the researchers found that people taking 40mg of simvastatin daily were about five times as likely to develop rhabdomyolysis when compared with people taking 20mg daily.

In absolute terms, the risks were about 11 per 100,000 person-years in people taking 40mg simvastatin and 2 per 100,000 person-years in those taking 20mg.

Study lead investigator Dr Lianne Parkin says recent meta-analyses have clearly shown that the benefits of statins in preventing major cardiovascular events far outweigh any serious adverse effects associated with their use.

“However, these meta-analyses were based on highly selected participants in randomised controlled trials and there was very little information about the risk of rhabdomyolysis in people taking the doses of simvastatin that are recommended for use in New Zealand,” Dr Parkin says.

“While previous research has found a greater risk of serious muscle damage in people taking higher doses of statins, our study is the largest investigation to date of rhabdomyolysis in a general population of simvastatin users and the first to provide separate estimates of risk for 40mg and 20mg simvastatin.”

The researchers used routinely collected health and prescription medicine data to conduct a study based on 313,552 people of all ages who were dispensed simvastatin at any time between 2005 and 2009. Other factors, including age, sex, medical conditions, and other prescription drugs, were taken into account in the analyses.

“Statins are one of the most widely used classes of drugs,” says Dr Parkin, “and it is reassuring to have found a very low risk of rhabdomyolysis in New Zealanders using simvastatin. The greater risk associated with the use of 40mg simvastatin is one of several factors which patients and their doctors might consider when discussing the balance of benefits and risks of cholesterol-lowering treatment, and the most appropriate dose and type of statin to be used.”

The research was funded by Medsafe and the Health Research Council of New Zealand.

Publication details:
Parkin L, Paul C, Herbison GP. Simvastatin dose and risk of rhabdomyolysis: Nested case-control study based on national health and drug dispensing data.

ENDS

© Scoop Media

 
 
 
 
 
Culture Headlines | Health Headlines | Education Headlines

 

Cricket: Dramatic Win Puts Black Caps In Finals

In Parliament: When Parliament resumed at 2pm the House passed a motion on a voice vote admiring the performance of the New Zealand cricket team in last night’s World Cup semi-final and wishing them well for the final on the weekend. More>>

ALSO:

Moon Shot/Kills Switch: The X Factor Judges Removed

MediaWorks has today decided that Natalia Kills and Willie Moon are no longer suitable to judge The X Factor and have removed them from the show. MediaWorks CEO, Mark Weldon, said that last night on The X Factor both Kills and Moon made comments that were completely unacceptable. More>>

ALSO:

Tessa Nichol: Up Up & Away In The Wairarapa

It’s an overcast morning in the Wairarapa but the mood on the ground in Carterton’s Carrington Park is anything but grey. More than 20 hot air balloons are getting ready to take off into the cloudy sky to mark the start of this year’s Wairarapa Balloon Festival. More>>

Golden Shears: Scotsman Wins Golden Shears Open Final

A Scottish shearer who settled in New Zealand to farm in Taranaki has become the first shearer from overseas to win the Golden Shears Open Shearing Championship. More>>

ALSO:

Shipped On A Bottle: Young Change-Makers Take To The Sea On Plastic Bottle Kayaks

With the aim of harnessing innovative design to construct kayaks solely from recycled materials, the “waste positive” project Plastic Bottle Kayak brings adventure into Kiwi classrooms. The call is out now for classrooms to send in messages and artwork to be inserted into the bottles. More>>

TV3 Video: Auckland Arts Festival Kicks Off

The Auckland Arts Festival kicks off March 4, with artists from New Zealand and all over the world on show. More>>

ALSO:

Get More From Scoop

 
 

LATEST HEADLINES

 
 
 
 
Health
Search Scoop  
 
 
Powered by Vodafone
NZ independent news