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Adverse
Reactions & Treatment Failures for Lice or Scabies Products
The medical community and its physicians cannot appreciate the hazards of
lindane, lice sprays, and other pesticidal treatment products until adverse
reactions and treatment failures are identified and reported. If you have
noticed an adverse reaction or a treatment failure, please fill out this
reporting form.
Lindane is commonly used as a pediculicide in the USA. But the US National
Pediculosis Association has maintained since 1983 that the toxicity of lindane
outweighs any benefits it may have as a pediculicide. In many cases it is sold
or prescribed without adequate warnings or guidance on use. It is applied to the
scalp and overuse is encouraged. The lindane content in a solution of
pediculicide, if consumed accidentally or deliberately, is significant. The
alternatives are the equally toxic malathion, or the relatively less toxic
pyrethroid compounds.
Visualize a six-sided saturated
ring with a chloride atom attached to each carbon.
It is not a benzene ring. It is prepared from benzene; that is why one of its
names is gamma benzene hexachloride.
Kwell: One shampoo product that is only available by
prescription is Kwell®. It has been used in the U.S. for lice for about 50
years. Head lice resistance to lindane, the active ingredient in Kwell, has
been reported in many parts of the world, including the U.S. This product is
less effective than most of the other head lice treatments. It is available only
by prescription because it is more hazardous. Kwell should be used with
caution—neurotoxic reactions, carcinogenicity in lab animals and blood
disorders have been reported as a result of the normal use of lindane
shampoos.
http://www.ianr.unl.edu/ianr/lanco/enviro/pest/factsheets/018-99.htm
Lindane is poisonous. Keep lindane away from the
eyes. Do not use lindane on open wounds, such as cuts or sores on the skin or
scalp. When applying lindane to another person, you should wear plastic
disposable or rubber gloves, especially if you are pregnant or are
breast-feeding. MEDLINEplus
Lindane is a prescription-only agent and was approved by the
FDA in 1947.
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Nits can be seen with normal vision, a magnifying glass may be
helpful but is not required.
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Hypersensitivity to permethrin may indicate higher
susceptibility to lindane.
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