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Antihistamine Use Tied to Brain Tumors

Don't Panic!

To arrive at their findings, the researchers combined data from two studies in which participants were asked about their use of antihistamines and anti-inflammatory drugs. A total of 610 people with brain tumors and 831 people without cancer were included in the final analysis.

John D. Potter, PhD, senior vice president of the Fred Hutchinson Cancer Research Center in Seattle and moderator of a news conference to discuss the findings, stresses that people who take antihistamines should not panic or stop taking the drugs when needed.

"This study adds to information we have showing that inflammatory processes are important in the development of cancer. It does not tell us that drugs like antihistamines cause cancer," he tells WebMD.

"It's a mechanism we should be exploring, not a risk factor we should be modifying," Potter says.

Scheurer agrees. One hypothesis he hopes to explore is to determine whether antihistamines work in concert with as-yet undetermined genetic factors to raise brain cancer risk.

"It could be that some people are predisposed to develop the tumors and antihistamine use is just speeding it up," he says. "That's a topic for future research."


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