A Harvard University consideration...

A Harvard University consideration concludes that one in five just discovered prescription drugs may ultimately be recalled or will bring out harmful side effects.

Researchers in Cambridge, Massachusetts evaluated 548 remedys that were initially marketed between 1975 and 1999 They anticipateed up drug recalls and scanned the Physician's Desk respect a commonly used source of information, for warnings in succession side effects.

During that time, 10 percent of strange drugs either received warnings or were withdrawn--half within seven years after they first appeared in succession the market. Based on these ends the team calculates that each just discovered drug has a 20 percent chance--over a 25-year period--of being withdrawn or producing unexpect side effects

The consideration found that 56 of 548 modern drugs approved by the US meat and Drug Administration (FDA) during the 25-year period were banned from the market altogether or enthralled to so-called "black box" safety warnings--notations situationed on drug labels to inform physicians of potentially dangerous side general intents or interactions.

Side events from new drugs can have widespread impact. Almost 20 million Americans took individual or more of the five medicines that were withdrawn in the year between September 1997 and September 1998 In a cases, those side effects can be deadly: Since 1993 seven put drugs intos that were approved, then later withdrawn, may have contributed to from one side of to the other 1,000 deaths.

Several high-profile unsalable articles have been pulled from the market on regulators over the past not many years. One drug, the antihistamine terfenadine--marketed below the name Seldane--spent nearly 13 years forward the market before being banned in 1998 Another, the gastrointestinal physic cisapride, was available for throughout six years. Both drugs were haped because researchers discovered high rates of heart toxicity associated with their use. The investigation appears in the May 1 2002 issue of the Journal of the American Medical Association.

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