The combination of trimethoprim and sulfadiazine has synergistic action and usually has bactericidal action against many Gram-positive and Gram-negative bacteria like, E. coli, Haemophilus spp., Pasteurella spp., Salmonella spp., Staphylococcus spp. and Streptococcus spp.
Hypersensitivity to trimethoprim and/or sulfonamides.
Administration to animals with a seriously impaired renal and/or hepatic function or with blood dyscrasias.
After long-term treatment and high dosages crystalluria can occur.
When symptoms of crystalluria occur (haematuria, kidney colic), treatment has to be stopped immediately and for example sodium carbonate (alkalinises) has to be administered for increasing urine solubility of sulfadiazine.
Administration for a prolonged period also increases the risk for blood dyscrasias. Anaemia, leukopenia and thrombocytopenia may also occur.
For oral administration.
Calves, sheep and goats:
Twice daily, 5 g per 100 kg body weight for 4 - 7 days.
Swine and poultry:
1 kg per 1500 - 2500 litres of drinking water for 4 - 7 days.
Note: for pre-ruminant calves, lambs and kids only.
- For meat:
Calves, sheep, goats and swine: 8 days.
Poultry: 5 days.
Not for use in poultry producing eggs for human consumption.