Agrimin Rumbul Rumen Bullet Sheep and Calf 20 pack

Rumbul Rumen Bullet Sheep and Calf 20 pack

£34.00 ex VAT£40.80 inc VAT
Equivalent to £1.70 per bolus


You will be required to complete a POM-VPS/NFA-VPS form for this product at checkout to enable completion of your order.

in stock In stock



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Product Description

A sustained release bolus containing an alloy of magnesium, copper and aluminium.

Licenced to aid the prevention of hypomagnesaemia in sheep and calves grazing rapidly growing spring grass.

Helps manage the magnesium status of their flock or herd over high risk periods.

This product is suitable for:
• Sheep over 30 kg AND
• Calves over 50 kg

Always use the approved Agrimin applicator:

Dosage & Administration


  • One Rumbul Rumen Bullet (15g) should be given to each animal two days before the expected period of risk, e.g. after lambing or transfer to new grazing.
  • If necessary, dosage should be repeated after three weeks.
  • Only to be given to sheep of at least 30 kg bodyweight.


  • Two Rumbul Rumen Bullets (15g) should be given to each animal.
  • One treatment should prevent a serious reduction in blood magnesium concentration for at least three weeks;
  • thereafter, dosage should be repeated if the calf is still receiving a predominantly milk diet.
  • Only to be given to calves of at least 50 kg bodyweight.

Administer orally by using the specially designed bulleting gun.

For cattle and calves only - a second bullet should then be administered following the same procedure.

Observe each animal for a short time after dosing to ensure the bullet(s) has (have) been swallowed.


Zero days


Data Sheet

To know more about this product please click on the link below...

Rumbul Rumen Bullet (Sheep/Calves)


Delivery & Returns

Please check information about deliveries covering the Christmas and New Year period to ensure you have the medicines you need to cover you. 




Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£0 - £149.99



£150 - £299.99



£300 - £449.99



£450 or more




Please note there is a small excess for despatch to Highlands and Islands and Isle of Wight as governed by your postcode.

  1. To keep our prices as low as possible, we do not hold stock of most products. We order stock from our wholesaler at 4.30 each day, so any orders received after this time will not be ordered until the following day. 
  2. Orders placed on a Thursday or Friday that have refrigerated items included will not be dispatched until the following Monday to ensure that the items are delivered to you under controlled conditions. This means that you should receive these items on a Tuesday by 10am.
  3. We do not offer a Saturday or Sunday delivery service.
  4. Standard and Priority costs apply to the UK mainland only.
  5. Delivery to Scottish Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs - this is dependent on your postcode. Full details can be found by clicking the link below.
  6. Customers who arrange to collect from Warnham should not arrive before 12pm.
  7. We are no longer able to ship to Northern Ireland due to extra administrative costs since January 2021. Any orders placed online will be cancelled and refunded.

For full delivery details click here 


Faulty Goods Returns

In the unlikely event that you receive faulty or damaged goods please call 01306 628215 within 72 hours of receipt of your goods. Please have your order reference to hand. You will be asked to provide evidence of the damaged goods if damaged in transit.

Restricted Goods Returns

We are unable to offer refunds on the following products.

  • Animal medicines - general & vaccines
  • Refrigerated/temperature sensitive products

Please contact the Farmacy Team before sending any returns on 01306 628215.

For full returns details click here

Product Species

  • Cattle - Beef
  • Cattle - Dairy
  • Sheep
Home Delivery

UK mainland delivery from £8.00

Reward Points

Earn up to 34 reward points with this product.

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