NEW YORK - chronic users of acetaminophen painkiller risk slightly increased for cancers of the blood, according to a US study.
But the risk remains low and it is still uncertain, what role plays the drugs, the study, published in the Journal of Clinical Oncology, added.
Previous work has shown that the consumption of aspirin could reduce the likelihood of dying from colon cancer but increase the risk of bleeding ulcers, although the image has been less clearly blood or blood, cancer.
"A person who is age 50 or plu has a risk of 1% in ten years to get one of these cancers," said Emily White at Fred Hutchinson Cancer Research Center in Seattle, who worked on the study.
"Our study suggests that if you use acetaminophen at least four times a week for at least four years, which would increase the risk of about 2 %".
Noting that the present study was the first great foresight on the issue, as opposed to individual case reports, it added that there is still no evidence that acetaminophen can cause cancer.
New tests must also be confirmed before it is used in any decision regarding treatment.
White and his team followed 65 000 older men and women in the State of Washington, all free to the history of cancer, with the exception of cancers of the skin, at the beginning. First, they asked the participants on their use of pain relievers in the past decade.
Over six years on average, 577 people, or less than 1%, has developed a hematologic cancer.
More than 9% of those who, however, used large amounts of acetaminophen, compared to only 5 per cent of those who did not get sick.
After accounting for things like age, arthritis and family history of certain cancers of the blood, chronic users acetaminophen had almost twice the risk of developing disease.
No other pain relievers, including aspirin and ibuprofen, were tired at the risk of cancers of the blood.
White says that it is still too early to make recommendations based on the study, adding that they do pain relievers are free of side effects.
"Use long term of prescription drugs could have negative effects." "You have to weigh the benefits against the risk of all drugs", she added.
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