Lamisil
(Terbinafine HCL)(TABLET
FORM ONLY)
History and Background
Novartis
Pharmaceuticals Corporation distributes Lamisil, the brand
name for Terbinafine Hydrochloride, for the treatment of
nail, skin and other systemic fungal infections.
It is primarily used to treat a form of fungal
infection of the nail called Onychomycosis.
This fungal infection of the nail aggressively
discolors, thickens, and destroys the nail plate.
It is estimated that 10 million individuals in the
continental United States suffer from Onychomycosis.
The high-risk groups for this fungal infection are
the elderly, immuno-compromised,
and diabetic patients.
Problems With Lamisil
The
Food and Drug Administration (FDA) has recently issued a
safety advisory for the drug Lamisil.
There are serious risks associated with this drug. These
recent warnings do not apply to the topical applications of
the drug Lamisil. The safety advisories issued by the FDA in April 2001
only apply to the Lamisil tablets. As of April 2001 the
FDA has received and reviewed 16 possible Lamisil associated
cases of liver failure, including 11 deaths and two liver
transplants. As
a result, the FDA has not only issued the advisory, but has
also ordered new labeling and that the drug company send
letters to physicians regarding the new precautionary
measures. The
FDA has suggested that health care professionals obtain nail
specimens and conduct laboratory testing to confirm their
diagnosis, prior to prescribing Lamisil.
Lamisil was approved in May 1996.
As of October 2001 Lamisil has not been recalled by
the FDA and is still marketed by Novartis Pharmaceuticals
Corporation.
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Legal
Issues Surrounding Lamisil:
Lamisil,
also known as Terbinafine Hydrochloride, has been associated
with serious liver problems resulting in liver failure or
death. Patients who are considered potential users Lamisil
should be pre-screened for any existing liver disease prior
to actually being prescribed the drug.
Patients who are currently prescribed Lamisil or
who have taken Lamisil should watch for symptoms of liver
failure: nausea,
vomiting, abdominal pain, fatigue, loss of appetite, dark
urine, and generalized skin discoloration.
Prescription
Errors:
In addition to the severe reactions associated with
the use of Lamisil, there have also been reports that
prescribing and dispensing errors have occurred. These
errors have occurred with such drugs as Lamictal, an
anti-epileptic medication.
Reported
Side Effects of Lamisil:
Ø
Dark
Urine Rash
Ø
Dark
Urine Rash
ØAbdominal
Pain
Ø
Diarrhea
Ø
Fatigue
Ø
Flu-like
symptoms
ØHair
Loss
ØHeadaches
Ø
Hives
Ø
Indigestion
Ø
Itching
Ø
Jaundice
Ø
Joint
pain
Ø
Liver
enzyme abnormalities
Ø
Loss
of appetite
Ø
Muscle
aches
Ø
Nausea
Ø
Seizures
Ø
Skin
discoloration
Ø
Strokes
Ø
Taste
Disturbance
Ø
Vision
Problems
Ø
Vomiting
Ø
Yellowing
of the Eyes
Lamisil
May Have Adverse Effects When Used in Combination with:
Ø
Cimetidine (Tagment)
Ø
Cyclosporine (Neoral, Sandimmune)
Ø
Rifampin (Rifadin, Rimactane)
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