A-200 Lice Treatment

Name: A-200 Lice Treatment

What is A-200 Lice Treatment (piperonyl butoxide and pyrethrins topical)?

Piperonyl butoxide is a chemical that stops the breakdown of pyrethrins, an insecticide chemical.

Piperonyl butoxide and pyrethrins topical (for the skin) is a combination medicine used to treat lice.

Piperonyl butoxide and pyrethrins topical may also be used for purposes not listed in this medication guide.

What is the most important information I should know about A-200 Lice Treatment (piperonyl butoxide and pyrethrins topical)?

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

What should I discuss with my healthcare provider before using A-200 Lice Treatment (piperonyl butoxide and pyrethrins topical)?

You should not use piperonyl butoxide and pyrethrins topical if you are allergic to it, or if you have an allergy to chrysanthemums or ragweed.

FDA pregnancy category C. It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

It is not known whether this medicine passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

A-200 Lice Treatment (piperonyl butoxide and pyrethrins topical) side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using piperonyl butoxide and pyrethrins and call your doctor at once if you have severe stinging, burning, itching, swelling, or irritation where the medication is applied.

Common side effects may include:

  • mild itching, burning, or stinging;

  • mild skin rash; or

  • numbness or tingly feeling.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Usual Adult Dose for Lice

Piperonyl butoxide 4%-pyrethrins 0.33% topical shampoo: Use on dry hair. Apply to affected area until all the hair is thoroughly wet with shampoo. Allow to remain for 10 minutes only. Shampoo as usual and rinse thoroughly. Second treatment must be done in 7 to 10 days.

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