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Magniject 9 Injection
Magniject 9 Injection

Magniject 9 Injection

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Magniject is indicated in the treatment of hypomagnesaemia in cattle and sheep. Hypomagnesaemia is referred to as milk fever.

Active Substance
Magnesium Sulphate Heptahydrate 25.0 % w/v

Target Species
Cattle and Sheep

Treats and Controls
Hypomagnesaemia (Milk Fever).

Application Method
Administer by subcutaneous or slow intravenous injection 
Warm to body temperature before administration.

Magniject can be safely administered during pregnancy and lactation.

Withdrawal Period
Meat: zero days.
Milk:   zero days.

Administer by subcutaneous injection only.
Cattle: Up to 400 ml
Sheep: Up to 75 ml

Key Features of Magniject.

  • Administered by subcutaneous injection.
  • Fast acting.
  • Treats both Cattle and Sheep
  • Magniject can be safely administered during pregnancy and lactation

Signs of Milk Fever

In most cases cows will show some excitement or agitation with a tremor or spasm in muscles of the head and limbs. Then they will often stagger and go down to a "sitting" position, often with a 'kink' in her neck, and finally lie flat on their side before circulatory collapse, coma and even death. 
A dry muzzle, staring eyes, cold legs and ears, constipation and drowsiness are seen after going down.
The heart beat becomes weaker and faster.
The body temperature falls below normal, especially in cold, wet, windy weather.
These signs are due mainly to lowered blood calcium levels.
Sometimes there are additional signs due to complicating factors.
Bloat is common in cows unable to "sit up" because the gas in the rumen is unable to escape.
Pneumonia and exposure may affect cows left out in bad weather.

Click here to Download Data Sheet.

Health Products Regulatory Authority

Summary of Product Characteristics

Magniject 25% Solution for Injection

Active Substance:
Magnesium Sulphate Heptahydrate 25.0 % w/v

Solution for injection.


4.1 Target Species
Cattle, Sheep.

4.2 Indications for use, specifying the target species
Magniject is indicated in the treatment of hypomagnesaemia in cattle and sheep.

4.3 Contraindications
Do not administer intravenously.

4.4 Special warnings for each target species

4.5 Special precautions for use
Special precautions for use in animals

Warm to body temperature prior to administration.

Special precautions to be taken by the person administering the veterinary medicinal product to animals

4.6 Adverse reactions (frequency and seriousness)
None known.

4.7 Use during pregnancy, lactation or lay
Magniject can be safely administered during pregnancy and lactation.

4.8 Interaction with other medicinal products and other forms of interactions
None known.

4.9 Amounts to be administered and administration route
Administer by subcutaneous injection only.
Cattle: Up to 400 ml
Sheep: Up to 75 ml

4.10 Overdose (symptoms, emergency procedures, antidotes), if necessary
Not applicable.

4.11 Withdrawal period(s)
Meat: zero days.
Milk:   zero days.

Magniject administered by subcutaneous injection corrects the ionic disturbance that results from hypomagnesaemia.

6.1 List of excipients

Hydrochloric Acid Water for Injection

6.2 Major incompatibilities
None known. 

6.3 Shelf-life
Shelf-life of the veterinary medicinal product as packaged for sale: 2 years.
This product is for single use only.

6.4 Special precautions for storage
Do not store above 25oC.

6.5 Nature and composition of immediate packaging
Magniject, a clear colourless solution, is marketed in either 400 ml Amber Type III glass vials sealed with black rubber wads and aluminium screw caps, or 400 ml polypropylene containers sealed with bromobutyl bungs and aluminium caps.

6.6 Special precautions for the disposal of unused veterinary medicinal products or waste materials derived from the use of such products
Any unused product or waste material should be disposed of in accordance with national requirements.

Norbrook Laboratories (Ireland) Limited
Rossmore Industrial Estate


Date of first authorisation: 01 October 1991
Date of last renewal: 01 October 2006

Januray 2019

Delivery Information

Delivery Service

Here at Agridirect we have joined forces with DPD to ensure all packages are delivered promptly and safely to you. We ship to all mainland countries within the EU. Deliveries take place Monday to Friday excluding bank holidays. Once your order has been dispatched from our warehouse you will be notified by email. If there is a delay with your order for any reason you will be contacted immediately. 

Due to Brexit we are temporarily unable to ship to the UK. Shipping to Northern Ireland will remain in place.

Delivery Times
Ireland (ROI & NI) EU (Mainland Only)
2-4 Working Days 4-6 Working Days

Some products have an extended delivery time, this is noted on the products.

Delivery Rates

Country Orders Under €129 Orders Over €129
Ireland (ROI & NI) €7.99 €0.00
Austria €24.99 €17.00
Belgium €21.99 €14.00
Czech Republic €24.99 €17.00
Denmark €24.99 €17.00
Finland €36.99 €29.00
France €21.99 €14.00
Germany €21.99 €14.00
Hungary €28.99 €21.00
Italy €34.99 €23.00
Luxenburg €21.99 €14.00
Netherlands €21.99 €14.00
Poland €21.99 €17.00
Portugal €36.99 €29.00
Slovakia €28.99 €21.00
Slovenia €28.99 €21.00
Spain €34.99 €27.00
Sweden €34.99 €27.00


A selection of the products we sell are only licensed for sale within the Republic Of Ireland and can not be shipped outside of the country. These products are noted as only being available within the Republic of Ireland on the individual product pages.

There may be an addition charge on certain bulky items. This charge will be clearly marked on an applicable products and will be explained on the checkout page before payment has been made.

Agridirect Returns Policy

We’re sorry your purchase didn’t work out. But don’t worry; we have a great returns policy to help you out.

All purchases can be returned to us within 14 days of delivery and returned goods must be received within 14 days from the date you informed us of the return.

Purchases may be opened for inspection but must not be used and must be repackaged securely in the original packaging if you wish to return it.

If we discover goods have been used or there has been a loss in value of the goods due to damage to the goods, while in your care or whilst being returned to us, we will reduce the amount refunded, which may amount to the full cost of the product, to cover loss of value of goods.

All returns should be complete which includes boxes, manuals and accessories that may have been included with the order.

All returns must be packaged appropriately for shipping, we will not accept responsibility for damages or loss which occur during shipping of a return product.

We accept no responsibility for goods damaged or lost while in transit to us. 

How do I return a product?

We have partnered with DPD to make your returns process easy and secure. simply follow the steps below and bring your package to an official DPD pickup point.

1) All returns must be accompanied with a fully filled out returns form which can be downloaded here.

2) To print off your return label click here or visit and follow the on-screen instructions. Make sure and use your order number as your reference.

  • Select “Continue as Guest”
  • Select “Agridirect” from the drop-down menu
  • Select your reason for returning
  • Select the size of the package you wish to return
  • Accept DPD’s terms and conditions
  • Fill in your payment details
  • Fill in your own details
  • Follow the instructions to print off your label

3) Bring your package to a DPD pickup point. To find your nearest drop off point here.

Once the returned product has been received into our warehouse and been fully inspected a refund will be issued.

If you choose not to use the DPD returns service we recommend that you use a method that can be tracked.

For the return of bulk products please contact us at

I have received a damaged product from you, what should I do?

First off, if you have received a damaged electrical product from us, do not plug it in. Any electrical products that are plugged in are deemed ‘as used and accepted’ and are not accepted as returns. All damages must be reported to us via phone or email within 24hours of receipt of goods. Please ensure you check your items upon delivery.

How do I begin the returns process?

If you wish to begin the return process, please email us at and ensure the following information is included in your email. Your name, phone number, Order id, the item you wish to return, reason for return and if the product is damaged we require photos of the product.

Once you have sent us all required information a member of our team will assess your claim and will contact you as soon as possible. Please hold off on returning products until a member of our team has called you to confirm.


Once the returned product has been returned to us and fully inspected a refund will be issued.

Please Note: A typical timeline for a refund to show in your account is up to 10 working days from the date processed, depending on your bank.



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