Target species
Pigs, chickens and turkeys.
Indications for use
Pigs
Treatment of Swine Dysentery caused by Brachyspira hyodysenteriae susceptible to tiamulin. The presence of the disease in the herd must be established before the product is used.
Treatment of Porcine Colonic Spirochaetosis (colitis) caused by Brachyspira pilosicoli susceptible to tiamulin. The presence of the disease in the herd must be established before the product is used.
Treatment of Porcine Proliferative Enteropathy (ileitis) caused by Lawsonia intracellularis susceptible to tiamulin. The presence of the disease in the herd must be established before the product is used.
Treatment and metaphylaxis of Enzootic Pneumonia caused by Mycoplasma hyopneumoniae, including infections complicated by Pasteurella multocida susceptible to tiamulin. The presence of the disease in the herd must be established before the product is used.
Treatment of Pleuropneumonia caused by Actinobacillus pleuropneumoniae susceptible to tiamulin. The presence of the disease in the herd must be established before the product is used.
Chickens
Treatment and metaphylaxis of Chronic Respiratory Disease caused by Mycoplasma gallisepticum and Airsacculitis and Infectious Synovitis caused by Mycoplasma synoviae susceptible to tiamulin. The presence of the disease in the flock must be established before the product is used.
Turkeys
Treatment and metaphylaxis of infectious sinusitis and air sacculitis caused by tiamulin-susceptible strains of Mycoplasma gallisepticum and Mycoplasma synoviae and Mycoplasma meleagridis.
The presence of the disease in the herd or the flock must be established before use.
Contra-indications
Do not use in animals with known hypersensitivity to the active ingredient or to any of the excipients.
‘Do not use in pigs and birds that could receive products containing monensin, narasin or salinomycin during or for at least seven days before or after treatment with tiamulin. Severe growth depression or death may result’.
See 'Interactions' section for information regarding interaction between tiamulin and ionophores.
Special warnings for each target species
Animals with reduced water intake and/or in a debilitated condition should be treated parenterally.
Water intake may be depressed during the administration of tiamulin in birds. It appears to be concentration-dependent with 500 mg tiamulin hydrogen fumarate (equivalent to 1.11 g of product) in 4 litres of water reducing intake by approximately 10% and 500 mg tiamulin hydrogen fumarate (equivalent to 1.11 g of product) in 2 litres of water by 15% in chickens. It does not appear to have any adverse effect on overall performance of the birds or efficacy of the veterinary medicinal product but water intake should be monitored at frequent intervals, especially in hot weather. In turkeys, it is more marked, with approximately 20% reduction and therefore it is recommended not to exceed a concentration of 500 mg tiamulin hydrogen fumarate in 2 litres of the drinking water.
Repeated use should be avoided by improving management practice and thorough cleansing and disinfection.
Special precautions for use
Special precautions for use in animals
Use of the product should be based on susceptibility testing of the bacteria isolated from the animal. If this is not possible, therapy should be based on local (regional, farm level) epidemiological information about susceptibility of target bacteria.
Inappropriate use of the veterinary medicinal product may increase the prevalence of bacteria resistant to tiamulin.
Special precautions for the person administering the veterinary medicinal product to animals
Direct contact with the skin, eyes and mucous membranes should be avoided by wearing overalls, impermeable rubber gloves and safety glasses when preparing or handling the product.
In case of accidental eye contact, rinse the eyes thoroughly with clean running water immediately. Seek medical advice if irritation persists.
When handling the product, inhalation of the dust must be avoided by wearing a disposable half-mask respirator conforming to European Standard EN 149 or a non-disposable respirator to European Standard EN 140 with a filter to EN 143.
Contaminated clothing should be removed and any splashes on to the skin should be washed off immediately.
Wash hands after use.
Accidental ingestion should be avoided. In case of accidental ingestion, seek medical advice immediately and show the package leaflet or label to the physician.
People with known hypersensitivity to tiamulin should avoid contact with the product.
Adverse reactions
On very rare occasions erythema or mild oedema of the skin may occur in pigs following the use of Tiamulin.
The frequency of adverse reactions is defined using the following convention:
•very common (more than 1 in 10 animals treated displaying adverse reaction(s))
•common (more than 1 but less than 10 animals in 100 animals treated)
•uncommon (more than 1 but less than 10 animals in 1,000 animals treated)
•rare (more than 1 but less than 10 animals in 10,000 animals treated)
•very rare (less than 1 animal in 10,000 animals treated, including isolated reports).
Use during pregnancy, lactation or lay
Pigs
The product can be used during pregnancy and lactation.
Chickens and turkeys
The product can be used in laying chickens and in breeding chickens and turkeys.
Interactions
Tiamulin has been shown to interact with ionophores such as monensin, salinomycin and narasin and may result in signs indistinguishable from an ionophore toxicosis. Animals should not receive products containing monensin, salinomycin or narasin during or at least 7 days before or after treatment with tiamulin. Severe growth depression, ataxia, paralysis or death may result.
If signs of an interaction do occur, stop both the administration of tiamulin-medicated drinking water and also the administration of ionophore-contaminated feed immediately. The feed should be removed and replaced with fresh feed not containing the anticoccidials monensin, salinomycin or narasin.
Concomitant use of tiamulin and the divalent ionophore anticoccidials lasalocid and semduramicin do not appear to cause any interaction, however the concomitant use of maduramicin may lead to a mild to moderate growth depression in chickens. The situation is transient and recovery normally occurs within 3-5 days following withdrawal of tiamulin treatment.
Amounts to be administered and administration route
For oral administration through the drinking water.
When medicating large volumes of water, prepare a concentrated solution first and then dilute to the required final concentration.
Fresh solutions of tiamulin-medicated drinking water should be made up each day.
To ensure the correct dosage, body weight should be determined as accurately as possible to avoid underdosing. The intake of medicated water depends on the clinical condition of the animals. In order to obtain the correct dosage the concentration of tiamulin has to be adjusted accordingly.
In order to avoid interactions between the ionophores and tiamulin, the veterinarian and farmer should check that the feed label does not state that it contains salinomycin, monensin and narasin.
For chickens and turkeys, in order to avoid interactions between the incompatible ionophores monensin, narasin and salinomycin and tiamulin, the feed mill supplying the birds feed should be notified that tiamulin will be used and that these anticoccidials should not be included in the feed or contaminate the feed.
The feed should be tested for the ionophores prior to use if there is any suspicion that contamination of the feed might occur.
If an interaction does occur, stop tiamulin medication immediately and replace with fresh drinking water. Remove contaminated feed as soon as possible and replace with feed not containing the tiamulin-incompatible ionophores.
The dosage of the product to be incorporated should be established according to the following formula:
Dose (mg product
per kg body weight per day | x | Mean body weight (kg) of animals to be treated | =....mg product per litre of drinking water |
Mean daily water consumption (litre) per animal per day’ |
Chickens:
For the treatment and metaphylaxis of Chronic Respiratory Disease caused by Mycoplasma gallisepticum and Airsacculitis and Infectious Synovitis caused by Mycoplasma synoviae.
The dosage is 25 mg tiamulin hydrogen fumarate (equivalent to 55.6 mg of product)/kg body weight administered daily for the period of 3 to 5 consecutive days.
Turkeys:
For the treatment and metaphylaxis of Infectious Sinusitis and Airsacculitis caused by Mycoplasma gallisepticum, Mycoplasma synoviae and Mycoplasma meleagridis.
The dosage is 40 mg tiamulin hydrogen fumarate (equivalent to 88.9 mg of product)/kg body weight administered daily for the period of 3 to 5 consecutive days.
Pigs:
For the treatment of Swine Dysentery caused by Brachyspira hyodysenteriae:
The dosage is 8.8 mg tiamulin hydrogen fumarate (equivalent to 19.6 mg of product)/kg body weight administered daily in the drinking water of pigs for 3 to 5 consecutive days depending on the severity of the infection and/or the duration of the disease.
For the treatment of Porcine Colonic Spirochaetosis (colitis) caused by Brachyspira pilosicoli:
The dosage is 8.8 mg tiamulin hydrogen fumarate (equivalent to 19.6 mg of product)/kg body weight administered daily in the drinking water of pigs for 3 to 5 consecutive days depending on the severity of the infection and/or the duration of the disease.
For the treatment of Porcine Proliferative Enteropathy (ileitis) caused by Lawsonia intracellularis:
The dosage is 8.8 mg tiamulin hydrogen fumarate (equivalent to 19.6 mg of product)/kg body weight administered daily in the drinking water of pigs for 5 consecutive days.
For the treatment and metaphylaxis of Enzootic Pneumonia caused by Mycoplasma hyopneumoniae, including infections complicated by Pasteurella multocida susceptible to tiamulin.
The dosage is 20 mg tiamulin hydrogen fumarate (equivalent to 44.4 mg of product)/kg body weight administered daily for 5 consecutive days.
For the treatment of Pleuropneumonia caused by Actinobacillus pleuropneumoniae susceptible to tiamulin:
The dosage is 20 mg tiamulin hydrogen fumarate (equivalent to 44.4 mg of product)/kg body weight administered daily for 5 consecutive days.
Use suitably calibrated weighing equipment to weigh the necessary amount of product.
The maximum solubility of the product is 10 gram/litre.
Overdose
Chickens and turkeys:
Regarding poultry, there is a relatively high therapeutic index with tiamulin hydrogen fumarate and the likelihood of an overdose is considered remote especially as water intake and hence tiamulin hydrogen fumarate intake is reduced if abnormally high concentrations are given. The LD5 is 1090 mg/kg body weight for chickens and 840 mg/kg body weight for turkeys.
The clinical signs of toxicity in chickens are vocalisation, clonic cramps and lying in a lateral position. Signs in turkeys are: clonic cramps, lateral or dorsal lying position, salivation and ptosis.
Pigs:
Single oral doses of 100 mg tiamulin hydrogen fumarate/kg body weight in pigs caused hyperpnoea and abdominal discomfort. At 150 mg tiamulin hydrogen fumarate/kg body weight no central nervous system effects were noted except for tranquillisation. At 55 mg tiamulin hydrogen fumarate/kg body weight given daily for 14 days, a transient salivation and slight gastric irritation occurred. Tiamulin hydrogen fumarate is considered to have an adequate therapeutic index in the pig and a minimum lethal dose has not been established.
If signs of intoxication do occur promptly remove the medicated water and replace with fresh water.
Withdrawal periods
Pigs
Meat and offal: 2 days (8.8 mg tiamulin hydrogen fumarate (equivalent to 19.6 mg of product)/kg body weight)
Meat and offal: 4 days (20 mg tiamulin hydrogen fumarate (equivalent to 44.4 mg of product)/kg body weight
Chickens
Meat and offal: 2 days
Eggs: Zero day
Turkeys
Meat and offal: 6 days