LICE NO MORE LICE KILLING- piperonyl butoxide, pyrethrum extract shampoo

Lice No More Lice Killing by

Drug Labeling and Warnings

Lice No More Lice Killing by is a Otc medication manufactured, distributed, or labeled by Weeks & Leo Co., Inc. Drug facts, warnings, and ingredients follow.

Drug Details [pdf]

ACTIVE INGREDIENT

Piperonyl butoxide 4%

Pyrethrum extract (equivalent to 0.33% pyrethrins)

PURPOSE

Lice treatment

WARNINGS

For external use only

• pregnant or breastfeeding
• allergic to ragweed. May cause breathing difficulty or an asthmatic attack.

• near eyes
• inside nose, mouth, or vagina
• on lice in eyebrows or eyelashes. See a doctor if lice are present in these areas.

• keep eyes tightly closed and protect eyes with a washcloth or towel
• if product gets into eyes, flush with water right away
• scalp itching or redness may occur

• breathing difficulty occurs
• eye irritation occurs
• skin or scalp irritation continues or infection occurs

If swallowed, get medical help or contact a Poison Control Center (1-800-222-1222) right away.

INDICATIONS & USAGE

treats head, pubic (crab), and body lice

INSTRUCTIONS FOR USE

• Important: Read warnings before use
• Adults and children 2 years and over:

Inspect

• check each household member with a magnifying glass in bright light for lice/nits (eggs)
• look for tiny nits near scalp, beginning at back of neck and behind ears
• examine small sections of hair at a time
• unlike dandruff which moves when touched, nits stick to the hair
• if either lice or nits are found, treat with this product

Treat

• apply thoroughly to DRY HAIR or other affected area. For head lice, first apply behind ears and to back of neck.
• allow product to remain for 10 minutes, but no longer
• use warm water to form a lather, shampoo, then thoroughly rinse
• for head lice, towel dry hair and comb out tangles

Remove lice and their eggs (nits)

• use a fine-tooth or special lice/nit comb. Remove any remaining nits by hand (using a throw-away glove).
• hair should remain slightly damp while removing nits
• if hair dries during combing, dampen slightly with water
• for head lice, part hair into sections. Do one section at a time starting on top of the head. Longer hair may take 1 to 2 hours.
• lift a 1-to 2-inch wide strand of hair. Place comb as close to scalp as possible and comb with a firm, even motion away from scalp.
• pin back each strand of hair after combing
• clean comb often. Wipe nits away with tissue and discard in a plastic bag. Seal bag and discard to prevent lice from coming back.
• after combing, thoroughly recheck for lice/nits. Repeat combing if necessary.
• check daily for any lice/nits that you missed

a second treatment must be done in 7 to 10 days to kill any newly hatched lice

• if infestation continues, see a doctor for other treatments
• Children under 2 years: ask a doctor

QUESTIONS

Call 833-356-6431 Monday to Friday 9:00 am to 7:00 pm EST

INACTIVE INGREDIENT

ammonium laureth sulfate, fragrance, PEG-25 hydrogenated castor oil, polyquaternium-10, purified water, SD-40 alcohol

OTHER SAFETY INFORMATION

• do not freeze
• store at controlled room temperature 20°-25°C (68°-77°F)
• to report serious side effects due to the use of this product call (515) 276-1586
• see package insert for additional information
  

DOSAGE & ADMINISTRATION

Treat

apply thoroughly to DRY HAIR or other affected area. For head lice, first apply behind ears and to back of neck.
allow product to remain for 10 minutes, but no longer
use warm water to form a lather, shampoo, then thoroughly rinse
for head lice, towel dry hair and comb out tangles

PRINCIPAL DISPLAY PANEL

includes comb

INGREDIENTS AND APPEARANCE

LICE NO MORE LICE KILLING 
piperonyl butoxide, pyrethrum extract shampoo

Product Information
Product Type	HUMAN OTC DRUG	Item Code (Source)	NDC: 11383-001
Route of Administration	TOPICAL

Active Ingredient/Active Moiety
Ingredient Name	Basis of Strength	Strength
PIPERONYL BUTOXIDE (UNII: LWK91TU9AH) (PIPERONYL BUTOXIDE - UNII:LWK91TU9AH)	PIPERONYL BUTOXIDE	4 g  in 100 mL
PYRETHRUM EXTRACT (UNII: ZUM06L90GV) (PYRETHRUM EXTRACT - UNII:ZUM06L90GV)	PYRETHRUM EXTRACT	0.33 g  in 100 mL

Inactive Ingredients
Ingredient Name	Strength
AMMONIUM LAURETH-3 SULFATE (UNII: 896SJ235FN)
WATER (UNII: 059QF0KO0R)
POLYQUATERNIUM-10 (400 CPS AT 2%) (UNII: HB1401PQFS)
PEG-25 HYDROGENATED CASTOR OIL (UNII: 0ZNO9PJJ9J)
ALCOHOL (UNII: 3K9958V90M)

Product Characteristics
Color	yellow (Cloudy to transparent, cream to straw)	Score
Shape		Size
Flavor		Imprint Code
Contains

Packaging
#	Item Code	Package Description	Marketing Start Date	Marketing End Date
1	NDC: 11383-001-04	1 in 1 CARTON	07/01/2025
1		118 mL in 1 BOTTLE; Type 0: Not a Combination Product

Marketing Information
Marketing Category	Application Number or Monograph Citation	Marketing Start Date	Marketing End Date
OTC Monograph Drug	M031	07/01/2025

Labeler - Weeks & Leo Co., Inc (005290028)

Registrant - Weeks & Leo Co., Inc (005290028)

Establishment
Name	Address	ID/FEI	Business Operations
Weeks & Leo Co., Inc		005290028	manufacture(11383-001)