Norbrook Pen & Strep Injection 100ml

Pen & Strep Injection 100ml

£16.41 ex VAT£19.69 inc VAT

Refrigerated delivery required.

Type: POM-V

PLEASE NOTE: A prescription issued by a UK registered vet (MRCVS) is required before this item can be dispatched.

in stock In stock



You may also need:
10ml Syringe 100 pack
10ml Syringe 100 pack
£11.16 ex VAT£13.39 inc VAT
Farmers Medicine Records Book
Farmers Medicine Records Book
£7.42 ex VAT£8.90 inc VAT

Product Description

Please note as from April 2024 this product requires refridgerated storage between 2 and 8 degrees C

For the treatment of systemic infections in cattle, horses, sheep and pigs caused by or associated with organisms sensitive to penicillin and/or streptomycin including:

Arcanobacterium pyogenes

Erysipelothrix rhusiopathiae

Klebsiella pneumoniae

Listeria spp

Mannheimia haemolytica

Pasteurella multocida

Staphylococcus spp (non-penicillinase producing)

Streptococcus spp

Salmonella spp

and for the control of secondary bacterial infection with sensitive organisms in diseases primarily associated with viral infection.

Customer Reviews

By on
"Delivered on time and securely packaged. Thank you "

Dosage & Administration

Administer by deep intramuscular injection.

Recommended dosage rate is 8 mg/kg bodyweight procaine penicillin with 10 mg/kg bodyweight dihydrostreptomycin sulphate equivalent to 1 ml per 25 kg bodyweight.

Treatment should be given once daily for up to 3 consecutive days.

The maximum dose volume administered at one site should not exceed 15 ml for horses, 6 ml for cattle, 3 ml for sheep and 1.5 ml for pigs.



Animals must not be slaughtered for human consumption during treatment.


  • Not to be used in sheep producing milk for human consumption.
  • Sheep intended for human consumption should not be slaughtered until 31 days after the last treatment.


  • Milk for human consumption must not be taken during treatment.
  • Milk for human consumption may only be taken from cows after 60 hours from the last treatment.
  • Cattle intended for human consumption should not be slaughtered until 23 days after the last treatment.


  • Pigs intended for human consumption should not be slaughtered until 18 days after the last treatment.


  • Not to be used in horses intended for human consumption.
  • Treated horses may never be slaughtered for human consumption.
  • The horse must have been declared as not intended for human consumption under national horse passport legislation

Data Sheet

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

Pen & Strep





Delivery & Returns




Non-refrigerated items

By 6pm


Refrigerated items

By 12am

£100 +



Delivery to United Kingdom only

Please note there is a small excess of £7.50 for dispatch to Highlands and Islands and Isle of Wight and £12 to Guernsey and Jersey as governed by your postcode.

  1. We are unable to ship to Northern Ireland. Any orders placed online will be cancelled and refunded.
  2. Orders are typically dispatched the day after they are received. For example, orders placed on Monday, will be dispatched on Tuesday. Orders received on Friday will not be dispatched until Monday subject to stock availability.
  3. Orders placed on a Thursday or Friday that have refrigerated items included will be dispatched on Sunday for delivery before 12pm on the following Monday to ensure that the items are delivered to you under controlled conditions. 
  4. We do not offer a Saturday or Sunday delivery service.
  5. Standard and Priority costs apply to the UK mainland only. Highlands and Islands and Isle of Wight may incur an excess to cover additional carriage costs as governed by your postcode. Full details can be found by clicking the link below.
  6. Standard Delivery (non-refrigerated products) guarantees delivery by 6pm
  7. Priority Delivery (refrigerated products) guarantees delivery by 12pm.
  8. We are unable to dispatch refridgerated products to Highlands and Islands addresses. Full details can be found by clicking the link below. 

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

UK mainland delivery from £25.00

You Can Also...

Get help or write a review...

ask a questionwrite a reviewprint this page