The
risk of intestinal damage from common painkillers such as ibuprofen
and aspirin may be higher than thought, research suggests. Doctors
found small intestine damage in more than 70% of patients who
took non-steroidal anti-inflammatory drug painkillers for more
than three months.
Previously it was thought the risk of gut problems was low.
The study, by Houston's Baylor College of Medicine, is published
in Clinical Gastroenterology and Hepatology.
NSAIDS
- aspirin
- ibuprofen
- naproxen
The Baylor team's study compared 21 patients taking a non-steroidal
anti-inflammatory drug (NSAID) with 20 patients taking an unrelated
painkiller, or nothing.
Some 71% of the NSAID patients showed signs of small bowel injury,
compared to just 10% of the controls.
Researcher Dr David Graham said: "We have always known that
NSAIDs can cause potentially deadly stomach complications, but
the extent of the impact on the small intestine was largely
unknown until now."
"We saw some ulcers and we saw lots of erosions.
"Anybody who takes aspirin or (other) NSAIDS for a year has
a 1% to 4% risk of serious gastrointestinal complications."
Use sparingly
"We
should be continue to be wary of these drugs."
--- Dr Alastair Forbes
Dr
Alastair Forbes, a gastroenterologist at St Mark's Hospital,
London, and spokesman for Core, the digestive disorders foundation,
told the BBC News website that it was likely that most people
with gut damage linked to NSAIDS would not experience any
significant symptoms.
He said: "We should be continue to be wary of these drugs,
and what this study tells us is that we should not be giving
them out like smarties, or encouraging people to use them
over-the-counter without consulting their doctor.
"But neither should we be spinning into a blind panic. All
potent drugs have side effects, and sometimes the benefits
of taking them outweigh the risks."
Dr Madeleine Devey, medical director of the Arthritis Research
Campaign said: "For many patients, arthritis pain can be controlled
over the long term with much safer drugs such as a paracetamol
- or paracetamol plus codeine - and indeed many, many may
befit by using techniques that help them cope with their pain.
"There is of course a place for NSAIDs - but they should be
taken over short periods of time and not over years."
Dr Jim Kennedy, prescribing spokesperson for the Royal College
of GPs, said the study was interesting - but more research
was needed to establish whether it was clinically significant.
"Small intestinal irritation is already a well recognised
possible side effect of NSAIDS but they are tolerable for
most people.
"Simple pain killers should be first port of call for any
patient needing pain relief and patients who may need NSAIDS
should be considered and monitored carefully by their GP."
Other concerns
Nick Henderson, of the International Ibuprofen Foundation,
said: "This is the first experience we have had of this particular
effect and we will have to study the data carefully before
responding."
The latest study follows separate research raising concerns
that another class of painkillers, called COX-2 inhibitors,
can raise the risk of heart death.
One of these, Merck's Vioxx, was pulled from the market in
September.
In December the US Food and Drug Administration issued an
advisory telling doctors to limit their prescribing of other
COX-2s, and in the UK patients taking the drugs have been
advised to seek a consultation with their GP.
Another study, published in December, indicated that an over-the-counter
NSAID called naproxen might also raise the risk of heart attack
and stroke.