Liendrex

Pyrethrum extract, Piperonyl Butoxide · Shampoo · Topical

Over the counter

Active ingredient

0.30% PIPERONYL BUTOXIDE 4%

Purpose

PURPOSE LICE TREATMENT

Uses

USES: FOR THE TREATMENT OF HEAD, BODY, PUBIC (CRAB) LICE.

Warnings

WARNINGS FOR EXTERNAL USE ONLY.

Do not use

DO NOT USE NEAR OR PERMIT CONTACT WITH EYES OR MUCOUS MEMBRANES, SUCH AS INSIDE THE NOSE, MOUTH, OR VAGINA AS IRRITATION MAY OCCURE.

When using this product

WHEN USING THIS PRODUCT KEEP OUT OF EYES WHEN RINSING HAIR. CLOSE EYES TIGHTLY AND DO NOT OPEN UNTIL PRODUCT IS RINSED OUT. PROTECT EYES WITH WASHCLOTH, TOWEL OR OTHER SUITABLE MATERIAL OR BY SIMILAR METHOD. IF PRODUCT GETS INTO EYES, IMMEDIATELY FLUSH WITH WATER.

Stop use and ask a doctor

STOP USE AND ASK A DOCTOR IF SKIN IRRITATION OR INFECTION IS PRESENT OR DEVELOPS. INFESTED EYEBROWS OR EYELASHES OCCURS.

Keep out of reach of children

KEEP OUT OF REACH OF CHILDREN. IF SWALLOWED, GET MEDICAL HELP OR CONTACT A POISON CONTROL CENTER IMMEDIATELY.

Directions

DIRECTIONS IMPORTANT: READ WARNINGS AND OTHER INFORMATION BEFORE USING. SHAKE WELL BEFORE USING. USE ON DRY HAIR. APPLY TO AFFECTED AREA UNTIL ALL HAIR IS THOROUGHLY WET WITH PRODUCT. ALLOW PRODUCT TO REMAIN ON FOR 10 MINUTES BUT NO LONGER. ADD SUFFICIENT WARM WATER TO FORM A LATHER AND SHAMPOO AS USUAL. RINSE THOROUGHLY. A FINE TOOTH COMB OR SPECIAL LICE/NIT-REMOVAL COMB MAY BE USED TO HELP REMOVE DEAD LICE AND THEIR EGGS (NITS) FROM HAIR. A SECOND TREATMENT MUST BE DONE IN 7 TO 10 DAYS TO KILL ANY NEWLY HATCHED LICE.

Inactive ingredients

OTHER INGREDIENTS WATER, PEG-80 SORBITAN LAURATE, COCAMIDOPROPYL BETAINE, POLYSORBATE 80, SODIUM TRIDECETH SULFATE, SODIUM LAUROAMPHOACETATE, SODIUM LAURETH-13 CARBOXYLATE, CITRIC ACID AND TETRASODIUM EDTA.

Label text from the FDA structured product label by Menper Distributors Inc. (revised Jul 22, 2025). Long sections are shortened; the complete label is on DailyMed.

Active ingredients

Piperonyl Butoxide in 1 product
Pyrethrum Extract in 1 product

Liendrex NDC products (1)

NDC	Strength & form	Labeler	Type
53145-308	Piperonyl Butoxide 4 g/100mL; Pyrethrum Extract .3 g/100mL Shampoo	Menper Distributors Inc.	OTC MONOGRAPH DRUG

Frequently asked questions

What is Liendrex used for?

USES: FOR THE TREATMENT OF HEAD, BODY, PUBIC (CRAB) LICE.

Who makes Liendrex?

Liendrex is listed by 1 labeler in the FDA NDC directory, including Menper Distributors Inc..