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Horse Lice Duster III

This page contains information on Horse Lice Duster III for veterinary use.
The information provided typically includes the following:
  • Horse Lice Duster III Indications
  • Warnings and cautions for Horse Lice Duster III
  • Direction and dosage information for Horse Lice Duster III

Horse Lice Duster III

This treatment applies to the following species:
Manufacturer: Farnam

For Use on Horses, Cattle, and Swine.

Also for Use on Dogs and Cats to Control Fleas, Ticks, and Lice up to 10 days.

Active Ingredient







*(3-phenoxyphenyl) methyl (±) cis, trans-3-(2,2 dichloro-ethenyl)-2, 2-dimethylcyclopropanecarboxylate

cis/trans ratio: min. 35% (±) cis max. 65% (±) trans

Keep Out of Reach of Children

Horse Lice Duster III Caution



Precautionary Statements


Horse Lice Duster III Caution

Harmful if swallowed or inhaled. Avoid breathing dust. Avoid contact with eyes and skin. Wash thoroughly with soap and water after handling. Avoid contamination of feed and foodstuffs.

Physical And Chemical Hazards

Do not use or store near heat or open flame.

Environmental Hazards

This product is extremely toxic to fish and aquatic invertebrates. Do not apply directly to water. Do not contaminate water by cleaning of equipment or disposal of equipment wash waters.

First Aid

IF SWALLOWED: Call a poison control center or doctor immediately for treatment advice. Have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by the poison control center or doctor. Do not give anything by mouth to an unconscious person.

IF INHALED: Move person to fresh air. If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by mouth-to-mouth if possible. Call a poison control center or doctor for further treatment advice.

IF IN EYES: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after to first 5 minutes, then continue rinsing eye. Call a poison control center or doctor for treatment advice.

IF ON SKIN OR CLOTHING: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15-20 minutes. Call a poison control center or doctor for treatment advice.

In case of medical emergencies or health and safety inquiries, or in case of fire, leaking or damaged containers or for product use information, call 1-800-234-2269.

Have the product container or label with you when calling a poison control center or doctor, or going for treatment.

Directions For Use

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

Horses, Beef And Dairy Cattle

For use in dust bags, shaker can and mechanical dust applicator.

Horn Flies, Lice, Face Flies: Place contents of this package in any commercially available dust bag. Suspend bag in areas frequented by cattle or in gateways or lanes through which the animals must pass daily for water, feed, or minerals. Bags may also be placed in loafing sheds or in front of mineral feeders.

For dairy cows, bags may be suspended in the exit through which the cows leave the milking barn. The bags should hang 4 to 6 inches below the back line of the cattle.

For reduction of Face Flies, bags must be located so animals will be forced to use them daily and hung at a height so that the face is dusted.

Direct Application: Apply 2 oz. of dust per animal by shaker can or dust glove over the head, neck shoulders, back, legs and tailhead. Repeat as necessary.


Direct application for lice: Apply only 1 ounce per head as a uniform coat to the head, shoulder and back by use of a shaker can or suitable mechanical dust applicator. Repeat as necessary but not more often than once every 10 days. In severe infestation, both animals and the bedding may be treated. Do not ship animals for slaughter within 5 days of treatment.


To control Fleas, Ticks and Lice on Dogs and Cats: Apply powder liberally over the entire body. Work dust into hair and around the feet, pads and between the toes by rubbing against the lay of the hair until dust penetrates to skin. Contact ticks with powder. Take care not to get the powder in pet’s eyes, nose or mouth. Dust bedding, kennel, sleeping areas, carpeting and furniture used by infested animals regularly, applying at a rate of 3 to 6 ounces per 100 square feet. Repeat as needed, but not more often than once weekly. DO NOT USE ON DOGS OR CATS LESS THAN 12 WEEKS OF AGE.

Consult a veterinarian before using this product on debilitated, aged, pregnant, nursing or medicated animals. Sensitivities may occur after using ANY pesticide product for pets. If signs of sensitivity occur, bathe your pet with mild soap and rinse with large amounts of water. If signs continue, consult a veterinarian immediately.

Storage And Disposal

Do not contaminate feed or foodstuffs by storage or disposal.


Store in cool, dry area away from children.


Nonrefillable 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.

This container is sold by weight, NOT by volume. You can be assured of the proper weight even though some settling of contents normally occurs during transportation and handling.

Buyer assumes all risks of use, storage or handling of this product not in strict accordance with the label.

EPA REG. NO. 270-309 EPA EST. NO. 39578-TX-1

Farnam - Your Partner in Horse Care

FARNAM COMPANIES, INC., Horse Products Division, P.O. Box 34820, Phoenix, Arizona 85067-4820

Farnam, the Farnam logo, Horse Lice Duster, and Your Partner in Horse Care are trademarks of Farnam Companies, Inc.

©1997, 2003, 2006, 2008, 2010 Farnam Companies, Inc.


Product Code:

RM #:


6 OZ (170 g)




NAC No.: 10000271

301 WEST OSBORN ROAD, P.O. BOX 34820, PHOENIX, AZ, 85013-3928
Telephone:   602-285-1660
Toll-Free:   800-234-2269
Fax:   602-207-2183
Every effort has been made to ensure the accuracy of the Horse Lice Duster III 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