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Aivlosin Water Soluble Granules

This page contains information on Aivlosin Water Soluble Granules for veterinary use.
The information provided typically includes the following:
  • Aivlosin Water Soluble Granules Indications
  • Warnings and cautions for Aivlosin Water Soluble Granules
  • Direction and dosage information for Aivlosin Water Soluble Granules

Aivlosin Water Soluble Granules

This treatment applies to the following species:
Manufacturer: Pharmgate Animal Health

NADA 141-336 Approved by FDA.

(62.5% w/w Tylvalosin as Tylvalosin Tartrate)

Use only as directed.

For use only in the drinking water of pigs.

Not for use in lactating or pregnant females, or males and females intended for breeding.

Aivlosin Water Soluble Granules Caution

Federal law restricts this drug to use by or on the order of a licensed veterinarian.


Aivlosin® (Tylvalosin Tartrate) Water Soluble Granules is a water soluble granular powder for oral use by administration in the drinking water. Each gram of Aivlosin® Water Soluble Granules contains 0.625 grams of tylvalosin as tylvalosin tartrate.


(4R,5S,6S,7R,9R,11E,13E,15R,16R) - 15 - {[(6 - deoxy - 2,3 - di - O - methyl - β - D - allopyranosyl)oxy]methyl} - 6 - ({3,6 - dideoxy - 4 - O - [2,6 - dideoxy - 3 - C - methyl - 4 - O - (3 - methylbutanoyl) - α - L - ribo - hexopyranosyl] - 3 - (dimethylamino) - β - D - glucopyranosyl}oxy) - 16 - ethyl - 5,9,13 - trimethyl - 2,10 - dioxo - 7 - (2 - oxoethyl)oxacyclohex adeca-11,13-dien-4-yl acetate (2R,3R)-2,3-dihydroxybutanedioate.


Tylvalosin, the active ingredient in Aivlosin® Water Soluble Granules, is a macrolide antibiotic.

Aivlosin Water Soluble Granules Indications


Control of porcine proliferative enteropathy (PPE) associated with Lawsonia intracellularis infection in groups of swine in buildings experiencing an outbreak of PPE.

Dosage and Administration


Control of Porcine Proliferative Enteropathy

Prepare drinking water medicated with 50 parts per million Tylvalosin as shown in the following table.

Aivlosin® Water Soluble Granules sachet size

160 grams

400 grams

Tylvalosin content of sachet (grams)



Volume of drinking water (liters)



Volume of drinking water (US gallons)



Tylvalosin inclusion rate in water

50 parts per million (ppm)

Administer continuously in drinking water for five (5) consecutive days.

Keep water supply equipment clean and in good operating condition. Clean water medication equipment before and after each use. Do not mix or administer Tylvalosin medicated water using equipment made of galvanized metal. Galvanized metal adversely affects the stability of Tylvalosin in water and may reduce the effectiveness of the product. Prepare a fresh batch of medicated stock solution or medicated drinking water daily.


Aivlosin® Water Soluble Granules may be mixed directly into the drinking water system or first mixed as a stock solution in a smaller amount of water, which is then added to the drinking water system, for example, using an automatic water proportioner.

Direct mixing: When mixing the product directly into the drinking water system, the contents of the sachet should be sprinkled onto the surface of the water and mixed slowly and thoroughly for at least 3 minutes. Prepare a fresh batch of medicated drinking water daily.

Stock solution: When preparing a stock solution, the recommended concentration is one 160-g sachet per four (4) US gallons or one 400-gram sachet per 10 US gallons. Sprinkle sachet contents onto the surface of the water of the stock solution and mix slowly and thoroughly for at least 10 minutes. Use the stock solution for dilution into the drinking water system as soon as it is prepared. Add one (1) fluid ounce of this stock solution per 131 fluid ounces (1 US gallon, 3 fluid ounces) of drinking water to provide a final concentration of 50 ppm. If using an automatic water proportioner, set the flow rate to add stock solution at a rate of 1 fluid ounce per 131 fluid ounces of drinking water (1:131). Prepare a fresh batch of medicated stock solution daily.





When used in accordance with label directions, no withdrawal period is required before slaughter for human consumption.


Use of antibacterial drugs in the absence of a susceptible bacterial infection is unlikely to provide benefit to treated animals and may increase the development of drug-resistant pathogenic bacteria.


May cause skin irritation.

Tylvalosin Tartrate has been shown to cause hypersensitivity reactions in laboratory animals.

People with known hypersensitivity to Tylvalosin Tartrate should avoid contact with this product.

In case of accidental ingestion, seek medical advice.

When handling Aivlosin® Water Soluble Granules and preparing medicated drinking water, avoid direct contact with the eyes and skin. Wear a dust mask, coveralls and impervious gloves when mixing and handling this product. Eye protection is recommended. In case of accidental eye exposure, wash eyes immediately with water.

If irritation persists, seek medical attention.

Avoid eating, chewing gum and smoking during handling.

Wash contaminated skin.

The Material Safety Data Sheet contains more detailed occupational safety information.

To report adverse effects in users, to obtain more information or obtain a Material Safety Data Sheet, call the ASPCA Animal Product Safety Service at 1-800-345-4735.


Not for use in lactating or pregnant females, or males and females intended for breeding. The effects of Tylvalosin on swine reproductive performance, pregnancy and lactation have not been determined. The safety and efficacy of this formulation in species other than swine have not been determined.


No adverse reactions related to the drug were observed during clinical or target animal safety trials. To report suspected adverse reactions in animals, contact the ASPCA Animal Product Safety Service at 1-800-345-4735 or the FDA at 1-888-FDA-VETS.

Clinical Pharmacology

Tylvalosin is a 16-membered semi-synthetic macrolide antibiotic. Macrolides are generally considered to be bacteriostatic agents that exert their antibiotic effect by reversibly binding to the 23S rRNA of the 50S ribosomal subunit, thereby inhibiting bacterial protein synthesis. The spectrum of activity of most available macrolides used in veterinary medicine is primarily against Gram-positive bacteria and Mycoplasmas, with some activity against Gram-negative fastidious bacteria. These compounds have no activity against the naturally resistant Enterobacteriaceae including Escherichia coli and Salmonella spp. Typically, macrolides achieve higher concentrations in tissues than in plasma.


Control of Porcine Proliferative Enteropathy (PPE): A multi-location challenge model study was conducted to confirm the effectiveness of AIVLOSIN® Water Soluble Granules for the control of PPE associated with Lawsonia intracellularis. Pigs were challenged by intragastric gavage with a mucosal homogenate containing a North American isolate of Lawsonia intracellularis isolated in 2005 that induces representative disease in challenged pigs. When at least 15% of the study pigs were showing signs of infection based on abnormal fecal scores, pigs were provided water containing tylvalosin at an inclusion rate of 50 ppm for five consecutive days, or were provided non-medicated water.

Effectiveness was evaluated using clinical scores (pig demeanor score, abdominal appearance score, and fecal score) and clinically-validated gross PPE lesion scores. A conclusion of the effectiveness of 50 ppm tylvalosin for the control of PPE was determined based on a statistically significant (p = 0.0103) improvement in the clinically-validated gross PPE lesion scores in the 50 ppm tylvalosin-treated group compared to the non-medicated group.


Margin of safety: Aivlosin® Water Soluble Granules given orally in drinking water at 0, 50, 150 and 250 ppm tylvalosin (0, 1X, 3X and 5X the labeled dose, respectively) to 8 healthy pigs per treatment group over 15 days (3X the labeled duration) did not result in drug-induced clinical signs, gross pathologic lesions, histopathologic lesions or clinically-relevant clinical pathology abnormalities.


Store in a cool dry place at or below 25°C (77°F).

How Supplied

Aivlosin® Water Soluble Granules is packaged in 160- and 400-gram sachets supplied in boxes holding 20, 10 and 5 sachets respectively.

LOT NO.: Printed on label.

EXPIRY: Printed on label.

Distributed in the USA by: Pharmgate Animal Health. 14040 Industrial Rd., Omaha, NE 68114

For technical assistance or to obtain a Material Safety Data Sheet, call Pharmgate Animal Health at 1-800-380-6099

To report suspected adverse drug events, contact the ASPCA Animal Product Safety Service at 1-800-345-4735 or FDA at 1-888-FDA-VETS.

Aivlosin® is a registered trademark of ECO Animal Health Ltd.


Net contents:


160 grams


400 grams


NAC No.: 1635000.1

Toll-Free:   800-380-6099
Fax:   910-679-8368
General Inquires:
Every effort has been made to ensure the accuracy of the Aivlosin Water Soluble Granules information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the US product label or package insert.

Copyright © 2017 North American Compendiums. Updated: 2017-10-31