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Pyrethrins

Authors:Prof. Dr. med. Peter Altmeyer, Prof. Dr. med. Martina Bacharach-Buhles

All authors of this article

Last updated on: 29.10.2020

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Synonym(s)

Pyrethrum extract

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DefinitionThis section has been translated automatically.

Insecticides derived from Chrysanthemum flowers (e.g. Chrysanthemum cinerariaefolium). S.u. Antiparasitosa. Chemically these are optically active esters of chrysanthemum acid or pyrethric acid and the hydroxyketones pyrethronolone, cinerolone and jasmolone.

Use in human medicine against head lice, felt lice, clothes lice and itch mites. Pyrethrum extracts were formerly used for insect extermination. S.u. Pyrethrum.

Pharmacodynamics (Effect)This section has been translated automatically.

As contact insecticides, they are highly toxic to cold-blooded and warm animals such as insects, mites or worms. Pyrethrins act as a nerve and muscle poison. They are not toxic to humans because they are not absorbed.

IndicationThis section has been translated automatically.

Head lice, crabs and clothing lice and their nits.

Limited indicationThis section has been translated automatically.

Bronchial asthma, infants (use no more than 1/3 of the contents of the bottle).

Dosage and method of useThis section has been translated automatically.

Soak the hairs of the affected body parts and leave to soak for 30-45 minutes. Then rinse with water like a shampoo. For infants, use a maximum of 25 ml; repeat after 8-10 days if necessary.

Standard concentrationThis section has been translated automatically.

solution (0.3% pyrethrum extract, 0.7% piperonyl butoxide, 0.9% chlorocresol).

Undesirable effectsThis section has been translated automatically.

Eye irritation, skin irritation, allergic reactions. Neurotoxic effects are possible with long-term use.

InteractionsThis section has been translated automatically.

In combination with malathion mutual reduction of effectiveness.

PreparationsThis section has been translated automatically.

Golden Ghost forte

Note(s)This section has been translated automatically.

Due to high production costs, pyrethrins are usually replaced by their synthetic analogues, the pyrethroids.

Authors

Last updated on: 29.10.2020

Authors: Prof. Dr. med. Peter Altmeyer Prof. Dr. med. Martina Bacharach-Buhles