Penicillin G Na + Procaine penicillin G

Antibiotic

Interfere with bacterial cell wall synthesis

Cattle, sheep-shipping fever by Pasturella multocida 

Swine- Erysipelas

Horse- strangles 

Give 6000 IU per kg increase dose to 12,000 - 18,000 IU /kg for serious infection

Diarrhoea, methaemoglobenemia, anemia

Nausea, pain, vomiting