Skip to content
My WebMD Sign In, Sign Up

Natroba top

Important Note

Common Brand Name(s): Natroba

Warnings
Uses
Side Effects
Precautions
Interactions
Overdose
Natroba top Warnings
Natroba top Uses

This medication is used to treat head lice, tiny insects that infest and irritate your scalp. Head lice lay small white eggs (nits) at the roots of hair close to the scalp, especially on the hairline at the back of the neck and behind the ears. Spinosad works by paralyzing and killing lice and their eggs.

This medication should not be used on infants younger than 6 months due to the increased risk for serious side effects.

How to use Natroba top

Read the Patient Information Leaflet and Patient Instructions for Use if available from your pharmacist before you start using spinosad and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

This medication is for external use only. Shake the bottle well just before using. Apply this medication to scalp hair and scalp only. Use this medication when your hair is dry. Do not wet your hair before applying. Cover your face and eyes with a towel and keep your eyes closed tightly while applying this medication and during the time it remains on your scalp and hair. Avoid getting spinosad in your eyes. If the medication gets in or near the eye, flush with plenty of water right away. Since you should keep your eyes closed during application, you may need to have another person help you apply this medication. Children will need an adult to apply this medication for them.

Completely cover the scalp with spinosad first, and then apply outward toward the ends of the hair. If you do not use enough spinosad, some lice may escape treatment. It is important to use enough medication to cover your entire scalp and scalp hair. Leave the medication on your hair for 10 minutes. Use a timer or clock and start timing after you have completely covered your hair and scalp with medication. After 10 minutes, rinse thoroughly with warm water. You or anyone who helps you apply this medication should wash hands after application. You may shampoo your hair any time after treatment.

After treatment with this medication, you may use a fine-tooth comb or a special comb for removing treated lice and nits. However, combing is not required. If you see live lice 7 days or more after treatment, a second treatment should be given. Do not repeat treatment more than once unless otherwise directed by your doctor.

Tell your doctor if your condition persists or worsens.

Natroba top Side Effects

Skin or eye irritation/redness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

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 very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe 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.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Natroba top Precautions

Before using spinosad, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: skin conditions or sensitivities.

Constant or forceful scratching of the skin/scalp may lead to a bacterial skin infection. Tell your doctor right away if you develop worsening redness or pus.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Tell your doctor if you are pregnant before using this medication.

Spinosad does not pass into breast milk. However, it is unknown if an inactive ingredient in this medication, benzyl alcohol, may pass into breast milk and harm a nursing infant. Consult your doctor before breast-feeding.

Natroba top Interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Natroba top Overdose

This medicine may be harmful if swallowed. If swallowing or overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.

NOTES:

Do not share this medication with another person unless directed to do so by your doctor.

One application is usually all that is needed. To avoid giving lice to another person or getting them again, machine-wash all head wear, clothing, bed linens, and towels with hot water, then dry in a dryer at high setting for at least 20 minutes. Personal articles such as pillows or stuffed animals that cannot be washed should be dry cleaned, sealed in a plastic bag for at least 2 weeks, or sprayed with a disinfectant that kills lice. Brushes or combs should be soaked in hot water (hotter than 130 degrees F/54 degrees C) for at least 10 minutes. Furniture and floors should be thoroughly vacuumed.

People who are in close contact with the infected person, such as members of the same household, should also be checked for lice and nits. Be sure to talk with your doctor about treatment for those who have lice.

MISSED DOSE:

Not applicable.

STORAGE:

Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

Information last revised March 2013. Copyright(c) 2013 First Databank, Inc.

See 7 Reviews for this Drug. - OR -

Review this Treatment

Find a Drug:

by name or medical condition or shape/color (Pill Identifier)

(for example: aspirin)

(for example: diabetes)

Report Problems to the Food and Drug Administration
 
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Health Solutions From Our Sponsors

Ask the pharmacist

Questions about medications? Get expert answers by video or live chat about allergies, pregnancy, sleep, and more.
See the Ask the Pharmacist event schedule.

Ask a Question

Popular Slideshows & Tools on WebMD

tea
What you should eat.
Woman sitting in front of UV lights
Is yours working?
woman using breath spray
What's causing yours?
colon xray
Get the facts.
MS Overview
Recognizing symptoms.
bowl of yogurt with heart shape
Eat for a healthy heart.
woman doing pushups
To help you get fit.
Colored x-ray of tooth decay
Know what to look for.
Woman sitting with child
Do you know the symptoms?
fruit drinks
Foods that can help you focus.
Sad dog and guacamole
Don't feed this to your dog.
Thyroid exam
See how much you know.

Women's Health Newsletter

Find out what women really need.

WebMD the app

Get trusted health information. Whenever. Wherever... with your iPhone, iPad or Android.

Find Out More

IMPORTANT: About This Section and Other User-Generated Content on WebMD

The opinions expressed in WebMD User-generated content areas like communities, reviews, ratings, or blogs are solely those of the User, who may or may not have medical or scientific training. These opinions do not represent the opinions of WebMD. User-generated content areas are not reviewed by a WebMD physician or any member of the WebMD editorial staff for accuracy, balance, objectivity, or any other reason except for compliance with our Terms and Conditions. Some of these opinions may contain information about treatment or uses of drug products that have not been approved by the U.S. Food and Drug Administration. WebMD does not endorse any specific product, service, or treatment.

Do not consider WebMD User-generated content as medical advice. Never delay or disregard seeking professional medical advice from your doctor or other qualified healthcare provider because of something you have read on WebMD. You should always speak with your doctor before you start, stop, or change any prescribed part of your care plan or treatment. WebMD understands that reading individual, real-life experiences can be a helpful resource but it is never a substitute for professional medical advice, diagnosis, or treatment from a qualified health care provider. If you think you may have a medical emergency, call your doctor or dial 911 immediately.