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Clinical particulars
Target Species
Horses, sheep, pigs, dogs and cats.
Indications for use
For the treatment of infectious diseases in horses, sheep, pigs, dogs and cats caused by bacteria sensitive to the combination.
Penicillin is active against some Gram-negative and most Gram-positive bacteria. Neomycin is a broad spectrum antibiotic active against a number of Gram-positive and Gram-negative bacteria. The combination shows a broad spectrum of activity. In vitro activity has been demonstrated against all tested isolates of E. rhusiopathiae, Streptococcus spp. and A. pyogenes and the majority of tested isolates of Pasteurella, Salmonella, Klebsiella and Staphylococcus species
Contraindications
Not to be used in animals known to be hypersensitive to Beta-lactam antibiotics.
Special warnings for each target species
None known
Special precautions for use
See Section “Contraindications” above. Shake container before use.
Operator warnings
Care should be taken to avoid accidental self-injection.
Penicillin and cephalosporins may cause hypersensitivity (allergy) following injection, inhalation, ingestion or skin contact. Hypersensitivity to penicillin may lead to cross sensitivity to cephalosporins and vice versa. Allergic reactions to these substances may occasionally be serious.
1. Do not handle this product if you know you are sensitised or if you have been advised not to work with such preparations.
2. Handle this product with great care to avoid exposure, taking all recommended precautions.
3. If you develop symptoms following exposure, such as a skin rash, you should seek medical advice and show the doctor this warning. Swelling of the face, lips or eyes or difficulty with breathing are more serious symptoms and require urgent medical attention.
Wash hands after use.
Adverse Reactions
Overdosage with neomycin parenterally can cause renal damage and deafness, but this is unlikely at normal therapeutic dosage levels. Care should be taken in young animals, particularly puppies, kittens and piglets, to ensure accurate computation of dose. Courses of this product should be restricted to a period of three days.
Occasionally in sucking and fattening pigs, administration of this product may cause a transient pyrexia, vomiting, shivering, listlessness and incoordination. Additionally in pregnant sows and gilts, a vulval discharge which could be associated with abortion has been reported.
Local reaction (swelling) may occur at the injection site in horses for up to a week after administration. Doses exceeding 15 ml should be divided between two injection sites.
Use during pregnancy or lactation
The product is not contraindicated, but see section “Adverse Reactions” above.
The balance of risks should be considered carefully prior to use.
Interactions
Synergism occurs between beta-lactam antibiotics and amino-glycosides.
Penicillin exerts its bactericidal action by inhibition of bacterial call wall synthesis during multiplication. It is therefore in principle not compatible with bacteriostatic antibiotics (tetracyclines, chloramphenicol) which inhibit multiplication.
Amounts to be administered and administration route
Administration should be by deep intramuscular injection in all species. The dose should be repeated at 24 hour intervals as required to a maximum of three doses.
The following table is intended only as a guide and is calculated at a dosage rate of 5 mg/kg neomycin base (5 ml/100kg) for large animals and 10 mg/kg (1 ml/10 kg) in small animals as representing the maximum dose. Observe aseptic precautions.
Species
Weight
Maximum dose
Horse
500 kg
25 ml
Sheep
50 kg
2.5 ml
Pig
50 kg
2.5 ml
Dog
10 kg
1 ml
Cat
5 kg
0.5 ml
A suitably calibrated syringe should be used to ensure accurate injection of small volumes.
Overdose
No specific treatment or antidote recommended.
Withdrawal periods
Pigs and sheep should not be slaughtered for human consumption during treatment. Pigs may only be slaughtered for human consumption from 60 days after the last treatment, sheep from 70 days after the last treatment.
Not to be used in sheep producing milk for human consumption.
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.