() Noromectin® Plus (ivermectin and clorsulon) Injection for Cattle | Norbrook

Noromectin® Plus

(ivermectin and clorsulon) Injection for Cattle   

An ivermectin/clorsulon-based anti-parasiticide for the effective treatment of a wide range of internal and external parasites of beef and non-lactating dairy cattle, including control of adult liver flukes. .  

Target Species: Beef cattle, Non-Lactating dairy cattle

Product Attributes

  • All the benefits of an ivermectin injection, plus control of adult liver flukes with a single injection

  • Parasite control including liver flukes, gastrointestinal roundworms, lungworms, grubs, sucking lice and mange mites

  • Reliable anti-parasiticide activity which improves performance

  • Proven, effective infection control as well as protection from reinfection from certain worm species*

  • Available in 50 mL, 250 mL, 500 mL and 1000 mL bottles

Observe label directions and withdrawal times. Consult your veterinarian for assistance in the diagnosis, treatment, and control of parasitism. Do not use in female dairy cattle of breeding age or in calves to be processed for veal. Do not use in unapproved species as severe reactions, including fatalities in dogs, may result. See product labeling for full product information. 


*Ivermectin and clorsulon injection has been proved to effectively control infections and to protect cattle from reinfection with Dictyocaulus viviparus and Oesophagostomum radiatum for 28 days after treatment; Ostertagia ostertagi, Trichostrongylus axei and Cooperia punctata for 21 days after treatment; Haemonchus placei, and Cooperia oncophora for 14 days after treatment.

  • Active Ingredient(s)

    ivermectin 10 mg/mL and clorsulon 100 mg/mL

  • Dosage Form

    Ready-to-use sterile solution

  • Indications

    Noromectin® Plus Injection is indicated for the effective treatment and control of the following parasites in cattle:

    Gastrointestinal Roundworms (adults and fourth-stage larvae):

    Ostertagia ostertagi (including inhibited O. ostertagi)                         
    O. lyrata 
    Haemonchus placei                            
    Trichostrongylus axei                            
    T. colubriformis                                
    Cooperia oncophora                            
    C. punctata                             
    C. pectinata                
    Bunostomum phlebotomum        
    Nematodirus helvetianus
    (adults only)
    N. spathiger
    (adults only)    
    Oesophagostomum radiatum        

    Lungworms (adults and fourth-stage larvae):
    Dictyocaulus viviparus

    Liver Flukes: 
    Fasciola hepatica (adults only)

    Cattle Grubs (parasitic stages):
    Hypoderma bovis
    H. lineatum

    Sucking Lice:
    Linognathus vituli 
    Haematopinus eurysternus
    Solenopotes capillatus

    Mange Mites (cattle scabƚ)
    Psoroptes ovis (syn. P. communis var. bovis)
    Sarcoptes scabiei var. bovis

    ƚlvermectin has been approved as a scabicide by USDA/APHIS. Federal regulations require that cattle infested with or exposed to scabies (i.e., infestations with Psoroptes ovis) be treated. lvermectin when used according to label instructions meets this requirement. Treated cattle may be shipped interstate, but they must not be mixed with other cattle for 14 days following treatment. The federal regulations make no restriction on the movement of cattle not affected with or exposed to scabies. However, individual states have additional regulations to govern the interstate shipment of cattle and the regulatory veterinarian in the state of destination should be consulted for applicable regulations on the use of ivermectin in the control of scabies.

  • Dosage and Administration

    Noromectin® Plus should be given only by subcutaneous injection at a dose volume of 1 mL per 110 lb (50 kg) body weight. This volume will deliver 10 mg ivermectin and 100 mg clorsulon. For example:

    Noromectin Plus Dosing ChartDo 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.

    Noromectin® Plus (ivermectin and clorsulon) Injection is to be given subcutaneously only. Animals should be appropriately restrained to achieve the proper route of administration. Use of a 16-gauge, ½” to ¾” sterile needle is recommended. Inject the solution subcutaneously (under the skin) behind the shoulder (see illustration).

    Location for Noromectin InjectionAny single-dose syringe or standard automatic syringe equipment may be used with the 50 mL or 100 mL pack size. When using the 250 mL, 500 mL or 1000 mL pack size, use only automatic syringe equipment.
    Use sterile equipment and sanitize the injection site by applying a suitable disinfectant. Clean, properly disinfected needles should be used to reduce the potential for injection site infections.
    No special handling or protective clothing is necessary.
    The viscosity of the product increases in cool temperatures. Administering Noromectin® Plus at temperatures of 41°F (5°C) or below may be difficult. Users can make dosing easier by warming both the product and injection equipment to about 59°F (15°C).

    Noromectin Plus Residue Warning

  • Storage

    Protect product from light. Store at 59° to 86°F (15° to 30°C).

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Please note: Product information presented on this website is intended only as a brief summary of Norbrook products for your convenience. Not all products or indications are licensed in every country and may be subject to further local variations. For specific product information you should always consult a healthcare professional from your region or visit the local government agency website for the most up to date information. Please see our terms and conditions for further information.