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FDA
warning on safety of Itraconazole (Sporanox)
The FDA noted that some animal model studies and trials in healthy
humans showed that Itraconazole was associated with a negative inatrophic
effect. On the basis of this, the Agency reviewed the data from
"Drug Watch" which showed 58 cases of congestive heart
failure associated with Itraconazole. Of these, 28 patients were
hospitalized and 13 died, but the deaths were associated with other
confounding variables that precluded any clear conclusions. The
Agency is also aware of rare cases of hepatic failure with the use
of Itraconazole and Lamisil. The special concern in these cases
is the use of these drugs for nail infections where the risk-benefit
may be seriously questioned. The result is a "black box warning"
concerning the Sporanox for onychomycosis in patients with cardiac
dysfunction. The new labeling with both Sporanox and Lamisil will
warn about hepatotoxicity and recommend that the diagnosis be confirmed
with laboratory testing prior to prescribing.
posted
6/1/2001
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