Skip to Content

Permethrin 1% Pour-On Insecticide

This page contains information on Permethrin 1% Pour-On Insecticide for veterinary use.
The information provided typically includes the following:
  • Permethrin 1% Pour-On Insecticide Indications
  • Warnings and cautions for Permethrin 1% Pour-On Insecticide
  • Direction and dosage information for Permethrin 1% Pour-On Insecticide

Permethrin 1% Pour-On Insecticide

This treatment applies to the following species:
Manufacturer: Durvet

for Cattle, Sheep & their Premises

Kills Lice and Flies on Beef & Lactating Dairy Cattle, & Keds on Sheep

Active Ingredients







* (3-phenoxyphenyl)methyl (+/-) cis/trans 3-(2,2-dichloroethenyl) -2,2-dimethylcyclopropanecarboxylate cis/trans ratio: Min 35% (+/-) trans and Max 65% (+/-) cis.

**Contains Petroleum Distillates

Ready to Use


Permethrin 1% Pour-On Insecticide Caution

Ready-To-Use Pour-On Insecticide for Cattle, Sheep and their Premises

Precautionary Statements


Permethrin 1% Pour-On Insecticide Caution

Harmful if swallowed, inhaled or absorbed through skin. Avoid contact with skin, eyes or clothing. Avoid breathing vapor or spray mist.

Environmental Hazards

This pesticide is extremely toxic to aquatic organisms including fish and invertebrates. To protect the environment, do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters. Applying this product in calm weather when rain is not predicted for the next 24 hours will help to ensure that wind or rain does not blow or wash pesticide off the treatment area.

This product is highly toxic to bees exposed to direct treatment on blooming crops or weeds. Do not apply this product or allow it to drift to blooming crops or weeds while bees are actively visiting the treatment area.

Personal Protective Equipment (ppe)

Mixers, loaders, applicators, and other handlers must wear:

● Long-sleeved shirt and long pants

● Shoes plus socks

● Chemical-resistant gloves made of barrier laminate, nitrile rubber, neoprene rubber, or Viton

● Chemical-resistant apron for mixers, loaders, persons cleaning equipment, and for handlers performing animal dip operations.

User Safety Requirements

Follow manufacturer’s instructions for cleaning/maintaining PPE. If no such instructions or washables exist, use detergent and hot water. Keep and wash PPE separately from other laundry. Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this product’s concentrate. Do not reuse them.

User Safety Recommendations

Users should wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet. Users should remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing.

Users should remove PPE immediately after handling this product. Wash the outside of gloves before removing. As soon as possible, wash thoroughly and change into clean clothing.


Have Product Container or Label with You When Calling a Poison Control Center, Doctor or Going in for Treatment.

If Inhaled:

● Move person to fresh air.

● If person is not breathing call 911 or an ambulance, then give artificial respiration preferably mouth-to-mouth, if possible.

● Call a poison control center or doctor for further treatment advice.

If on Skin or on Clothing:

● Take off contaminated clothing.

● Rinse skin immediately with plenty of water for 15-20 minutes.

● Call a poison control center or doctor for further treatment advice.

If Swallowed:

● Call a poison control center, doctor, or 1-800-498-5743 immediately for treatment advice or transport the patient to the nearest hospital.

● Do not give any liquid to the patient.

● Do not administer anything by mouth.

● Do not induce vomiting unless told to do so by the poison control center or doctor.

NOTE TO PHYSICIAN: Contains petroleum distillate. Vomiting may cause aspiration pneumonia.

For 24-hour emergency information on this product, call 1-800-498-5743 (US & Canada) or 1-651-523-0318

Directions For Use

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

READ THE LABEL: Read the entire label and follow all use directions, use restrictions and precautions.

General Precautions And Restrictions

ENTRY RESTRICTIONS: Except when applying to livestock, do not enter or allow others to enter treated area until sprays have dried.

Entry Restrictions

Except when applying to livestock, do not enter or allow others to enter treated area until sprays have dried.

Application Restrictions

Except when applying to livestock, do not apply this product in a way that will contact workers or other persons, either directly or through drift.

Except when applying to livestock, only protected handlers may be in the area during application.

Do not breathe dust, vapors, or spray mist.

Do not water the treated area to the point of run-off.

Do not make applications during rain.

All outdoor applications must be limited to spot or crack-and-crevice treatments only, except for the following permitted uses:

1. Treatment to soil or vegetation around structures,

2. Applications to lawns, turf, and other vegetation,

3. Applications to building foundations, up to a maximum height of 3 feet.

Other than applications to building foundations, all outdoor applications to impervious surfaces such as sidewalks, driveways, patios, porches and structural surfaces (such as windows, doors and eaves) are limited to spot and crack-and-crevice application only.

Application is prohibited directly into sewers or drains, or to any area like a gutter where drainage to sewers, storm drains, water bodies, or aquatic habitation can occur.

Do not allow the product to enter any drain during or after application.

When used in dairy barns or facilities: Close milk bulk tank lids to prevent contamination from spray and from dead or falling insects. Remove or cover milking utensils before application. Wash teats of animals before milking. Do not use sponge to apply.

Apply To:

Target Insects

Application Instructions

Lactating Dairy Cattle, Non-Lactating Dairy Cattle, Beef Cattle, Beef Calves

Lice, Horn Flies.

Aids in control of Horse Flies, Stable Flies, Mosquitoes, Black Flies and Ticks.

Pour along back line and down face. Apply 1/2 fl. oz. per 100 lbs. body weight of animal up to a maximum of 5 fl. oz. (at any one application) for any one animal.

BACKRUBBER USE: Mix one pint per gallon #2 diesel or mineral oil. Keep rubbing device charged. Results improved by daily forced use.



Pour along back line and down face. Apply 1/4 fl. oz. per 50 lbs. body weight of animal up to a maximum of 3 fl. oz. (at any one application) for any one animal.


In and around Horse, Beef, Swine, Sheep and Poultry Premises, Animal Hospital Pens and Kennels, and Outside Meat Process Facilities

Horse Flies, Stable Flies, Face Flies, Gnats, Mosquitoes, Black Flies, Fleas, Little House Flies (Fannia spp.).

Aids in control of Cockroaches, Ants, Spiders, and Crickets

For use as a ready-to-use spot spray or premise spray:

Use undiluted in a mist sprayer. Apply directly to surface to leave a residual insecticide coating, paying particular attention to areas where insects crawl or alight. One gallon will treat approximately 7300 square feet.

Repeat treatment as needed, but not more than once every two weeks. For optimum insecticidal effectiveness against lice, a double treatment at 14 day intervals is recommended.

NOTE: This product is not effective for grub control on cattle.

Storage And Disposal

Do not contaminate water, food, or feed by storage or disposal.

PESTICIDE STORAGE: Store in a cool, dry and secure area. Store in original sealed container away from food or feed.

PESTICIDE DISPOSAL: Wastes resulting from the use of this product may be disposed of on-site or at an approved waste disposal facility.

CONTAINER DISPOSAL: Non-refillable container. Do not reuse or refill this container. If empty: Place in trash or offer for recycling if available.

If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.

DISCLAIMER: To the extent permitted by applicable law, seller makes no representation or warranty, either expressed or implied, for results due to misuse, improper handling or improper storage of this material. Nor does Seller assume any responsibility for injury to persons, crops, animals, soil or property arising out of misuse, improper handling or improper storage of this material.

EPA Reg. No. 47000-150-12281

EPA Est. No. 47000-IA-01

Manufactured For: DURVET, INC., Blue Springs, MO 64014



1 Gallon (3.785 L)


2.5 Gallon (9.464 L)


CPN: 1084000.6

Telephone:   816-229-9101
Toll-Free:   800-821-5570
Fax:   816-224-3080
Every effort has been made to ensure the accuracy of the Permethrin 1% Pour-On Insecticide information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the US product label or package insert.

Copyright © 2018 Animalytix LLC. Updated: 2018-11-30