Japanese Doctors Warned Not To Give Tamiflu To Teenagers After Reports Of Abnormal Behavior

TOKYO (AP) _ Japanese doctors were warned on Wednesday against prescribing Tamiflu to teenagers after several young patients taking the bird flu-fighting drug reportedly exhibited dangerous behavior. <br/><br/>The

Wednesday, March 21st 2007, 7:36 am

By: News On 6


TOKYO (AP) _ Japanese doctors were warned on Wednesday against prescribing Tamiflu to teenagers after several young patients taking the bird flu-fighting drug reportedly exhibited dangerous behavior.

The Health Ministry issued emergency instructions Tuesday to a Japanese Tamiflu distributor, Chugai Pharmaceutical Co., to warn doctors not to give the drug to teenagers, a Chugai official said on condition of anonymity, citing protocol.

Chugai began distributing warnings to doctors, hospitals and pharmacies across Japan on Wednesday, the official said.

Martina Rupp, a spokeswoman for Swiss manufacturer Roche Holding AG, said the company didn't understand the Japanese government's rationale for the action.

``No causal relationship has been established between Tamiflu and these reports, and we don't see this as an appropriate course of action,'' Rupp told The Associated Press.

Concerns over Tamiflu, also known as oseltamivir, have spiked in Japan after a boy and a girl, both 14, fell to their deaths from their condominiums while taking the drug in separate incidents in February.

The U.S. Food and Drug Administration has said it received more than 100 reports of delirium, hallucinations and other unusual psychiatric behavior, mostly in Japanese children treated with Tamiflu, between Aug. 29, 2005, and July 6, 2006. The Japanese government has not released detailed figures.

The FDA added a new precaution to Tamiflu's label in November, bringing the U.S. label more in line with the Japanese one that already warned that such abnormal behavior could occur.

Both Roche and the FDA have said that severe cases of the flu can spark the abnormal behavior displayed by some patients.

Two 12-year-old boys also taking Tamiflu both broke legs after jumping out of their houses in separate incidents in February and March, the official said.

Tamiflu, one of the few drugs believed to be effective in treating bird flu, is widely used in Japan to treat influenza.
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