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Tamiflu No Longer Works For Dominant Flu Strain
A milder than usual U.S. flu season is masking a growing concern
about widespread resistance to the antiviral drug Tamiflu and what that means
for the nation's preparedness in case of a dangerous pandemic flu. Tamiflu,
the most commonly used influenza antiviral and the mainstay of the federal
government's emergency drug stockpile, no longer works for the dominant flu
strain circulating in much of the country, according to government officials.
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Stimulant Drugs Cause Cocaine-Like Brain
Changes
A common stimulant drug
used to treat attention deficit hyperactivity
disorder can cause brain changes in mice similar to those seen
in cocaine addiction, according to U.S. researchers. They said healthy mice
exposed to daily injections of the Novartis drug Ritalin, or methylphenidate,
developed changes in the reward centers of their brains, and some of these
changes resembled those in mice given cocaine.
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Lexapro May Ease Anxiety in Older Adults-US
Study
The popular antidepressant Lexapro showed promise at easing anxiety
symptoms in older adults, but the effect was "modest" and would
need to be studied further, according to U.S. researchers. They said
antidepressants like Lexapro, made by Forest Laboratories Inc and known
generically as escitalopram, may be useful as a new treatment option for
older adults with generalized anxiety disorder, a disabling condition that
can also cause muscle tension, insomnia and fatigue.
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'Memory Pill' That Could Help With Exam
Revision Could Be Available Soon
The medicine has been designed originally to help treat
Alzheimer's disease, but could be adapted and licensed for sale in a weaker
form within the next few years. One brand of memory-enhancing pill is being
developed by the multinational company AstraZeneca in collaboration with
Targacept, an American company, while Epix Pharmaceuticals, also from the US,
is developing another. Both have "cognitive-enhancing effects"
which are aimed at treating patients
with age-related memory loss.
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