Tyawalt 450 mg/g Granules for Use in Drinking Water for Pigs
Active ingredient: Tiamulin Hydrogen Fumarate
Form
Powder
Species
Manufacturer
KRKA, d.d., Novo mesto
VMD MA No.
01656/3069
What it's used for
Treatment of porcine colonic spirochaetosis (colitis) caused by Brachyspira pilosicoli susceptible to tiamulin. Treatment of porcine proliferative enteropa...
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Tyawalt 450 mg/g Granules for Use in Drinking Water for Pigs — SPC Details
Source: VMD Summary of Product Characteristics (SPC). Last updated 27 Mar 2026.
pilosicoli susceptible to tiamulin.
Treatment of porcine proliferative enteropathy (ileitis) caused by Lawsonia
intracellularis susceptible to tiamulin.
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 group must be
established before the product is used.
Treatment of pleuropneumonia caused by Actinobacillus pleuropneumoniae
susceptible to tiamulin.
When medicating large volumes of water, prepare a concentrated solution first
and then dilute to the required final concentration. Alternatively, the
concentrated solution can be used in a proportional water medicator. The
solubility of the product has been confirmed at the maximal concentration of
100 g of product/L in soft and hard water and at 4°C and 20°C.
Medicated drinking water should be refreshed or replaced every 24 hours.
Revised November 2024
Make sure the animals do not have access to non-medicated water during the
period when the medicated water is given.
After the end of the medication period the water supply system should be
cleaned appropriately to avoid intake of sub-therapeutic amounts of the active
substance.
To ensure a correct dosage, body weight should be determined as accurately
as possible.
The intake of medicated water depends on the clinical condition of the
animals. In order to obtain the correct dosage, the concentration of tiamulin
may need 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.
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.
Based on the recommended dose and the number and weight of animals to
be treated, the exact daily concentration of the veterinary medicinal product
should be calculated according to the following formula:
x mg veterinary
medicinal product/ kg
body weight per day
X
average body
weight (kg) of
animals to be
treated
average daily water intake (l/animal)
= x mg veterinary
medicinal product per
litre of drinking water
Brachyspira
hyodysenteriae: 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.
Brachyspira pilosicoli: 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.
Lawsonia intracellularis: 8.8 mg tiamulin hydrogen fumarate (equivalent
Revised November 2024
to 19.6 mg of product)/kg body weight administered daily in the drinking
water of pigs for 5 consecutive days.
Mycoplasma hyopneumoniae, including infections complicated by
Pasteurella multocida
44.4 mg of product)/kg body weight administered daily for 5 consecutive
days.
pleuropneumoniae: 20 mg tiamulin hydrogen fumarate (equivalent to
44.4 mg of product)/kg body weight administered daily for 5 consecutive
days.
any of the excipients.
Revised November 2024
Do not use in pigs 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 section 3.8 for information regarding interaction between tiamulin and
ionophores.
Very rare
(<1 animal / 10,000 animals
treated, including isolated
reports):
Erythema or mild skin oedema
Reporting adverse events is important. It allows continuous safety monitoring
of a veterinary medicinal product. Reports should be sent, preferably via a
veterinarian, to either the marketing authorisation holder or its local
representative or the national competent authority via the national reporting
system. See also the last section of the package leaflet for respective contact
details.
treated parenterally.
Special precautions for safe use in the target species:
Use of the product should be based on identification and susceptibility testing
of the target pathogen(s). If this is not possible, therapy should be based on
epidemiological information and knowledge of susceptibility of the target
pathogens at farm level, or at local/regional level.
Use of the product should be in accordance with official, national and regional
antimicrobial policies.
An antibiotic with a lower risk of antimicrobial resistance selection (lower
AMEG category) should be used for first line treatment where susceptibility
testing suggests the likely efficacy of this approach.
Not for use for prophylaxis.
Inappropriate use of the veterinary medicinal product may increase the
prevalence of bacteria resistant to tiamulin.
Special precautions to be taken by the person administering the veterinary
medicinal product to animals:
People with known hypersensitivity to tiamulin should avoid contact with the
veterinary medicinal product.
When mixing, direct contact with the skin and mucous membranes should be
avoided.
Wear safety glasses, and rubber or latex gloves when handling or mixing the
product. Wash hands with soap and water after use.
If accidental contact occurs, contaminated clothing should be removed and
any splashes to the skin or mucous membranes should be washed off
immediately.
In case of accidental eye contact, irrigate the eyes thoroughly with clean
running water immediately.
Seek medical advice if irritation persists, and show package insert or labelling
to the physician.
Special precautions for the protection of the environment:
Not applicable.
Revised November 2024
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.
conditions.
After first opening, do not store above 25ºC.
Keep the original bag tightly closed after first opening.
The product after dilution in water should be stored at temperatures below
25°C.
mg of product)/kg body weight).
Meat and offal: 4 days (20 mg tiamulin hydrogen fumarate (equivalent to 4
This information is sourced from the official Summary of Product Characteristics (SPC) published by the Veterinary Medicines Directorate (VMD). It is provided for informational purposes only and does not replace professional veterinary advice. Always consult your vet before administering any medication.
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Other Products Containing Tiamulin Hydrogen Fumarate
These products share the same active ingredient and may be suitable alternatives. Always consult your vet.
Denagard 10% w/w Premix for Medicated Feeding Stuff for Pigs, Chickens, Turkeys and Rabbits
POM-VElanco Europe Ltd
Denagard 12.5% w/v Concentrate for Oral Solution
POM-VElanco Europe Ltd
Denagard 200 mg/ml Solution for Injection
POM-VElanco GmbH
Denagard 200 mg/ml Solution for Injection
POM-VElanco GmbH
Tialin 125 mg/ml Solution for Use in Drinking Water for Pigs, Chickens and Turkeys
POM-VDechra Regulatory B.V.
Tialin 125 mg/ml Solution for Use in Drinking Water for Pigs, Chickens and Turkeys
POM-VDechra Regulatory B.V.
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