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Mycodex® All-In-One Spray

(S)-methoprene; pyrethrins; piperony butoxide; MGK 264


Specially designed for dogs, cats, puppies, and kittens 12 weeks of age and older, a fast-acting formulation that kills and repels lice, flies, mosquitos, gnats, fleas, and ticks, including those that carry Lyme disease that works for up to 2 months.

See full product label for more information.

Item #Product NamePresentation
100531070Mycodex All-In-One® Flea & Tick Spray16 oz. bottle



Mycodex All-In-One® Flea & Tick Spray controls fleas, ticks, lice, mosquitoes, gnats, flies, and flea larvae.

This product combines the adult flea killing power of pyrethrins with the long-lasting egg-killing power of PRECOR® Insect Growth Regulator. This highly effective combination of ingredients provides quick relief from biting fleas and continuous killing of flea eggs laid on the animal, breaking the flea life cycle.

The elimination of both adult fleas and flea eggs is important because adult fleas live on your pet, causing discomfort and skin irritation, while the vast number of eggs that they lay fall off and develop in your house. Effective flea control requires treatment of your pets, house, and yard.


0.27% (S)-Methoprene
0.20% Pyrethrins
0.46% Piperony butoxide
0.62% N-octyl bicycloheptene dicarboximide

See product label for other ingredients.


Store in cool, dry area. Do not contaminate water, food or feed by storage or disposal. Do not use or store near heat or open flame. Store away from children and animals. Do no reuse or refill container. 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.

Shake well before using.

FOR DOGS AND CATS: For Fleas: A light, even coverage of the hair coat will provide effective flea control. Do not allow spray from application or damp animal to come into contact with painted or finished surfaces, including wood floors/furniture, leather/vinyl materials, or other surfaces of concern. For best results, ruffle the coat while spraying against the natural lay of the hair. Cover animal’s eyes with hand. With a firm fast stroke, spray head, ears and chest. With cloth, rub into face around mouth, nose, and eyes. Then spray the neck, middle and hind quarters, finishing with legs and tail last. Avoid spraying rectum and genitals. Apply at the rate of 1 or 2 squeezes of the trigger sprayer per pound of body weight. For larger dogs, spray until damp, not saturated. Do not allow animals, cats in particular, to become chilled. Repeat every 2 months for continuous home flea infestation prevention. If your pet becomes reinfested with adult fleas from outside sources, this product may be reapplied weekly. For Ticks: Make sure spray thoroughly wets individual ticks.

FOR PUPPIES AND KITTENS: For Fleas: Leaving the eyes, nose, and mouth exposed, treat puppies and kittens weighing less than 3 pounds by wrapping the animal in a towel that has been lightly sprayed with this product, for 5 to 10 minutes. Or lightly spray a brush or cotton ball and work thoroughly into the hair coats. Fleas may be removed from the coat by picking or combing. Puppies and kittens over 3 pounds may be treated the same as dogs and cats as described above. Repeat every 2 months for continuous home flea infestation prevention. If your pet becomes reinfested with adult fleas from outside sources, this product may be reapplied weekly. Do not allow animals to become chilled. Do Not Use On Puppies and Kittens Under 12 Weeks of Age.

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


All PRN® Pharmacal products should be administered under the care and supervision of a veterinary professional to ensure the best possible results. Use only as directed.

Consult a veterinarian before using this product on debilitated, aged, pregnant, nursing, or animals on medication. 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. Some cats may be sensitive to products containing pyrethrins. Excessive salivation and ear and paw flicking may occur; however, these effects are temporary and not harmful.

Harmful if swallowed or absorbed through skin. Avoid contact with skin, eyes, or clothing. May cause dermal sensitization (skin allergy).


Call a poison control center or doctor for 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 the first 5 minutes, then continue rinsing eye. If on skin or clothing take off contaminated clothing then rinse skin immediately with plenty of water for 15-20 minutes. If swallowed, have person sip a glass of water if able to swallow. Do not induce vomiting unless told to do so by poison control center or doctor. Do not give anything by mouth to an unconscious person. Have the product container or label with you when calling a poison control center, doctor, or veterinarian or going for treatment.

ALWAYS read the entire product label prior to use.

EPA Reg. No. 2724-404-92895

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