() Noromectin® Pour-On (ivermectin topical solution) for Cattle | Norbrook

Noromectin® Pour-On

(ivermectin topical solution) for Cattle   


An ivermectin-based endectocide for the effective treatment and control of a wide range of internal and external parasites of beef and non-lactating dairy cattle. 

Target Species: Beef cattle, Non-Lactating dairy cattle

Product Attributes

  • Broad-spectrum efficacy against a wide range of internal and external parasites

  • A convenient pour-on formulation for ease of administration and less stress for the producer as well as the animal

  • Persistent activity against important parasites* 

  • Rapid penetration to target key parasites quickly

  • FDA approved

  • Available in 5 Liter size


* Noromectin® Pour-On (ivermectin topical solution) has been proved to effectively control infections and to protect cattle from re-infection with: Oesophagostomum radiatum and Dictyocaulus viviparus for 28 days after treatment; Cooperia punctata and Trichostrongylus axei for 21 days after treatment; Ostertagia ostertagi, Haemonchus placei, Cooperia oncophora and Cooperia surnabada for 14 days after treatment; Damalinia bovis for 56 days after treatment.



Observe label directions and withdrawal times. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Warning: Flammable. Do not use in female dairy cattle of breeding age or in calves to be processed for veal. Not recommended for use in species other than cattle. See product labeling for full product information. 



Restricted Drug – California. Use Only as Directed.

  • Active Ingredient(s)

    5 mg ivermectin/mL

  • Dosage Form

    Pour-on topical solution

  • Indications

    Noromectin® Pour-On (ivermectin topical solution) applied at the recommended dose level of 500 mcg/kg is indicated for the effective control of these parasites.

    Gastrointestinal Roundworms 


    Ostertagia ostertagi (including inhibited stage)

    (adults and L4)

    Haemonchus placei 

    (adults and L4) 

    Trichostrongylus axei 

    (adults and L4)

    T. colubriformis

    (adults and L4)

    Cooperia oncophora 

    (adults and L4) 

    Cooperia punctata 

    (adults and L4)

    Cooperia surnabada 

    (adults and L4)

    Strongyloides papillosus 


    Oesophagostomum radiatum

    (adults and L4)

    Trichuris spp. 




    Dictyocaulus viviparus 

    (adults and L4)


    Cattle Grubs


    Hypoderma bovis, H. Lineatum 




    Sarcoptes scabiei var. bovis 




    Linognathus vituli 

    Haematopinus eurysternus 

    Damalinia bovis 

    Solenopotes capillatus


    Horn Flies


    Haematobia irritans 


    Noromectin® Pour-On (ivermectin topical solution) controls horn flies (Haematobia irritans) for up to 28 days after dosing. For best results Noromectin® Pour-On should be part of a parasite control program for both internal and external parasites based on the epidemiology of these parasites. Consult your veterinarian or an entomologist for the most effective timing of applications.

  • Dosage and Administration


    The dose rate is 1 mL for each 22 lb of body weight. The formulation should be applied along the topline in a narrow strip extending from the withers to the tailhead.

    Do not underdose. Ensure each animal receives a complete dose based on a current body weight Underdosing may result in ineffective treatment and encourage the development of parasite resistance.


    Collapsible Pack (169 fl oz/5 L Pack)
    Connect the applicator gun to the collapsible pack as follows:
    •    Attach the open end of the draw-off tubing to the dosing equipment. (Because of the solvents used in the formulation, only the Simcro Tech gun, or equivalent, is recommended. Other applicators may exhibit compatibility problems resulting in locking, incorrect dosage or leakage.)
    •    Replace the shipping cap with the draw-off cap and tighten down. Attach draw-off tubing to the draw-off cap.
    •    Gently prime the applicator gun, checking for leaks.
    •    Follow the manufacturer’s directions for adjusting the dose
    •    When the interval between the uses of the applicator gun is expected to exceed 12 hours, disconnect the gun and draw-off tubing from the product container and empty the product from the gun and tubing back into the product container. To prevent removal of special lubricants from the Simcro Tech gun, the gun and tubing must not be washed.

    Noromectin Pour on Dosing Schedule by Weight

    Noromectin Pour on Residue Warning

  • Storage

    Store at or below 25°C (77°F), excursions permitted up to 40°C (104°F). Protect from light.  

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