The standard adopts the effective dose definitions of NCRP 116, which is compatible with ICRP 60.
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But taking into account the studies of recent years, government guidelines urge that "the minimum effective dose should be used for the shortest duration".
If you received that Defkalion dose for one hour, you would be approximately at the U.S. limit on effective dose from a single airport security screening.
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But there is more than a little silver lining here: The FDA is allowing Tularik to use a higher (and therefore possibly more effective) dose of T67 than it used in earlier tests.
The Atlas (Assessment of Treatment with Lisinopril and Survival) study found the drug is much more effective if the dose is increased.
It appears, however, that adding Zetia to a low dose of a statin, such as Zocor or Lipitor, is as effective as using the higher dose of the statin.
Forest says clinical trials involving 1, 100 patients show that a low, 10-milligram dose of Lexapro is as effective at relieving depression as a 40-mg dose of Celexa.
However, he said it was possible that a dose lower than 80 parts per million might also be effective.
The study found that even in moderate cases, patients have to be given a higher dose of drugs in order for the treatment to be effective.
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This may have resulted in the drug's dose being much higher than was needed to make sure it was effective.
If that is true, then certain drugs designed to affect the immune system might be more effective if delivered as small doses at different times, rather than as a single, continuous dose.
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