Pen & Strep Norbrook 100 ml
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What it is
Pen & Strep is an antibiotic injection containing penicillin and streptomycin for cattle, horses and sheep.
When to use it
- Joint infections diagnosed by your vet
- Inflammation of the intestines
- Some forms of mastitis caused by bacteria sensitive to penicillin or streptomycin
How to use it
Dose: 1 ml per 25 kg body weight · Route: intramuscular injection
Storage: in the fridge at 2-8 °C, away from light.
Dispensed on a veterinary prescription — your vet sets the right dose.
How much is in the pack
100 ml bottle: about 5 doses for a 450 kg horse (18 ml per dose), or about 50 doses for a 50 kg sheep (2 ml per dose).
What else you need
A suitable syringe and needle (available in our store)






