Description:
The combination of trimethoprim and sulfadiazine acts synergistic and usually bactericidal against many Gram-positive and Gram-negative
bacteria like E. coli, Haemophilus, Pasteurella, Salmonella, Staphylococcus and Streptococcus spp. Both compounds affect bacterial purine
synthesis in a different way, as a result, of which a double blockade is accomplished.
Indications:
Gastrointestinal and respiratory infections caused by trimethoprim and sulfadiazine sensitive micro-organisms, like E. coli, Haemophilus,
Pasteurella, Salmonella, Staphylococcus and Streptococcus spp., in calves, goats, poultry, sheep and swine.
Contra-indications:
Hypersensitivity to trimethoprim and/or sulphonamides.
Administration to animals with a serious impaired renal and/or liver function or with blood dyscrasias.
Side effects:
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, leucopenia and thrombocytopenia.