Mathijssen presented the results of the study

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canada goose outlet parka In a small study released Monday, doctors showed that St. canada goose uk black friday John’s wort decreases blood canada goose coats on sale levels canada goose of a chemotherapy drug used to treat many different types of cancer. Dr. Ron Mathijssen of the Rotterdam Cancer Institute in the Netherlands, who directed the study, said canada goose clearance sale St. John’s wort could reduce the ability of chemotherapy to knock Canada Goose Online down cancer. canada goose outlet parka

canada goose outlet jackets “People don’t realize it is a drug because you don’t need canada goose black friday sale a prescription. People think it’s harmless,” he said. Mathijssen presented the results of the study, uk canada goose conducted on five patients, at a meeting in San Francisco of the American Association for Cancer Research. canada goose outlet jackets

canada goose outlet uk sale Three patients were exposed to a normal course of the cancer drug Camptosar, known generically as irinotecan, cheap Canada Goose followed three weeks later by a second course that combined the drug and St. John’s wort. The canadagoose-sale two others received the combination treatment, and three weeks later received irinotecan alone to see whether the herbal supplement Canada Goose Jackets still had an effect. canada goose outlet uk sale

canada goose outlet toronto factory The study found that the body’s exposure to the cancer killing chemotherapy fell by about 40 percent when St. John’s wort was taken. The researchers Canada Goose online also found that the effect lasted for more than three weeks after the patients stopped taking the herb. “This means people have to realize that it’s not good enough to stop using St. John’s wort just prior canada goose uk shop to treatment with Canada Goose Parka irinotecan,” Mathijssen said. The study was not designed, however, to determine how long before starting chemotherapy patients need to stop taking herbal supplements. canada goose outlet toronto factory

canada goose outlet new york city Despite the small size of the study, experts said the findings are believable because they fit with earlier canada goose coats reports showing that St. John’s wort can disrupt drug treatment. canada goose outlet new york city

canada goose outlet canada Two years ago, the Food and Drug Administration warned that the herb can interfere with protease inhibitors, drugs that are widely used to treat Canada Goose Coats On Sale AIDS. Among others, experts say, are digoxin and beta blockers used for heart disease, seizure medicines and drugs used to prevent organ rejection after transplants. canada goose outlet canada

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canada goose outlet nyc About half of all cancer patients take some kind of health supplements, including sometimes “industrial strength” vitamins, said Dr. Karen Antman, director of medical oncology at New York’s Columbia Presbyterian Hospital, canada goose outlet nyc

canada goose outlet “We are very concerned in the medical community about the drugs our patients are taking that we don’t know about,” Antman said. “I cheap canada goose uk make it a point to ask, but I’m not sure my patients always tell me the truth.” canada goose outlet

canada goose outlet store St. John’s wort stimulates an enzyme called P450 that is involved in the metabolism, through the liver, of about half of all drugs, including common chemotherapy agents. canada goose outlet store

canada goose outlet sale “Many people who have cancer become mild to moderately depressed and I buy canada goose jacket cheap can understand that. But it might be safer to have them on a drug we know canada goose store more about,” Antman said canada goose outlet sale.

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