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Terms Of Use

PERMETHRIN

Brand Name(s) : Lyclear, Lythrin
Warnings
Uses
Side Effects
Precautions
Interactions
Overdose

PERMETHRIN WARNINGS

Permethrin should be used with caution in:

  • Colour treated or permed hair (test by applying to a small patch of hair before use)
  • Treatment of eczema with corticosteroids.

It should not be used in:

  • Hypersensitivity to permethrin, to other pyrethroids or pyrethrins, or to any other ingredients of the cream.
  • Broken or secondarily infected skin.

Also see list of precautions and interactions

STORAGE

Do not store above 25°C.

PERMETHRIN USES

What is it used for?

  • Permethrin is used to treat infections caused by certain parasites.
  • Lyclear Dermal Cream is indicated for the treatment of scabies and crab lice.
    Permethrin 5% Cream is indicated for the treatment of scabies.
    Lyclear Creme Rinse is indicated for the treatment of head lice.
  • It is an insecticide.
  • It is used to treat head-lice, crab lice and scabies.

Listed below are the typical uses of permethrin.

  • Treatment of head-lice
  • Treatment of crab-lice
  • Treatment of scabies

On occasion your doctor may prescribe this medicine to treat a condition not on the above list.

HOW TO USE/TAKE

How often do I take it?

  • Apply this medication to the hair, or body, depending on the location of infection. Consult your doctor, pharmacist or the product information leaflet enclosed for details of the specific product you are using.
  • Treatment can be repeated after seven days if required.
  • It may take some time before the full benefit of this drug takes effect.
  • Certain medical conditions may require different dosage instructions as directed by your doctor.

What dose?

  • Dosage is based on your age, gender, medical condition, response to therapy, and use of certain interacting medicines.

Do I need to avoid anything?

  • Avoid contact with eyes. In the event of contact with the eyes, rinse thoroughly with water immediately
  • Nursing staff who routinely use permethrin may wish to wear gloves to avoid any possible irritation to the hands.
  • Consult your doctor or pharmacist for more details.

When can I stop?

  • Permethrin is generally used as a one-off treatment, but treatment can be repeated after seven days if required.

PERMETHRIN SIDE EFFECTS

skin discomfort, usually described as burning, stinging or tingling,

If any of these persist or you consider them severe then inform your doctor or pharmacist.

Tell your doctor immediately if you develop any of the following symptoms:

  • no specific major side effects known, see also symptoms of a serious allergic reaction below.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

The Yellow Card Scheme allows you to report suspected side effects from any type of medicine (which includes vaccines, herbals and over the counter medicines) that you are taking. It is run by the medicines safety watchdog called the Medicines and Healthcare products Regulatory agency (MHRA). Please report any suspected side effect on the Yellow Card Scheme website.

PERMETHRIN PRECAUTIONS

Before taking permethrin, tell your doctor or pharmacist if you are allergic to it; or to other pyrethroids or pyrethrins; or if you have any other allergies.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist in case of:

  • Hypersensitivity to permethrin, to other pyrethroids or pyrethrins, or to any other ingredients of the cream.

Before using this medication tell your doctor or pharmacist your medical history, especially any of the following:

  • Colour treated or permed hair (test by applying to a small patch of hair before use)
  • Treatment of eczema with corticosteroids

Before having surgery, tell your doctor or dentist that you are taking this medication.

Does alcohol intake affect this drug?

  • Alcohol intake is not known to affect permethrin.

The elderly: permethrin can be used in the elderly.

Pregnancy and breastfeeding - please ensure you read the detailed information below

PREGNANCY

The safety of permethrin has not been established during pregnancy. Ask your doctor or pharmacist if you have any doubts or questions about this.

It is sensible to limit use of medication during pregnancy whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.

BREAST FEEDING

It is not known whether permethrin passes into breast-milk. The manufacturer therefore states that it should not be taken if you are breastfeeding.

It is sensible to limit use of medication during breastfeeding whenever possible. However, your doctor may decide that the benefits outweigh the risks in individual circumstances and after a careful assessment of your specific health situation.

If you have any doubts or concerns you are advised to discuss the medicine with your doctor or pharmacist.

PERMETHRIN INTERACTIONS

Before using this medicine, tell your prescriber of all the medicines you are taking including prescription medicines and medicines you have bought over the counter without a prescription. Tell your prescriber if you are taking vitamins or complementary remedies such as herbal products, as these can also interact with medicines.

If you are taking more than one medicine, these may interact with each other. Your prescriber may decide to use medicines which interact with each other if the benefit outweighs the risks. In these cases, the dose of your medicines may need to be adjusted or you may be monitored more closely.

The following medicines may interact with permethrin:

  • Corticosteroids, used to treat skin conditions such as eczema

This information does not contain all possible interactions. Therefore, tell your prescriber of all the products you are using before taking this medicine.

If you have a question or want to discuss anything about your medicine, speak to your local pharmacist.

PERMETHRIN OVERDOSE

Applying too much permethrin may cause the following: skin reactions (redness, swelling, itching) where it was applied.

If you think you, or someone you care for, might have accidentally swallowed permethrin or intentional overdose is suspected, contact your local hospital, GP or if in England call 111. In Scotland call NHS 24. In Wales, call NHS Direct Wales. In the case of medical emergencies, always dial 999.

MISSED DOSE

Permethrin is generally used as a one-off treatment, but treatment can be repeated after 7 days if required.

If you miss an application, apply it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.

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Source: Selected from data included with permission and copyrighted by Boots UK Limited. This copyrighted material is sourced from a licensed data provider and is not for distribution, except as may be authorised by the applicable terms of use.
CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgement of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse events, nor should it be construed to indicate that use of a particular medicine is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any medicine, changing any diet, or discontinuing any course of treatment.

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