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L-S 20 Premix (Canada)

This page contains information on L-S 20 Premix for veterinary use.
The information provided typically includes the following:
  • L-S 20 Premix Indications
  • Warnings and cautions for L-S 20 Premix
  • Direction and dosage information for L-S 20 Premix

L-S 20 Premix

This treatment applies to the following species:
Manufacturer: Zoetis

lincomycin hydrochloride, spectinomycin sulfate premix - mfr. std.

Veterinary Use Only

DIN 00813907

For the prevention of swine dysentery (vibrionic dysentery, bloody scours) in growing swine up to 57 kg of body weight.

Directions For Use

For the prevention of swine dysentery, complete feeds containing 44 grams of antibiotic activity per tonne should be fed to growing swine up to a weight of 57 kg. L-S 20 premix should be mixed with feed before use.

Mixing Directions

For Making Medicated Complete Feeds: Add 1 kg of L-S 20 premix per tonne of complete feed. The resulting medicated complete feed will contain 44 grams of antibiotic activity per metric tonne. This should be fed as the sole ration to growing swine up to a weight of 57 kg.

Examples for Making Medicated Supplements

To make Medicated Supplements containing the following amounts of Antibiotic Activity

Add the following kg of L-S 20 premix to make one metric tonne of Medicated Supplements

kg Medicated Supplement

Example Mixing Directions for Making Medicated Complete Feeds From Medicated Supplements.
*(To Make a One Tonne Batch Containing 44 Grams of Antibiotic Activity)
kg of Grain or Grain and Non-Medicated Supplement

175 grams/tonne

4 kg

250 kg

750 kg

200 grams/tonne

4.5 kg

225 kg

775 kg

220 grams/tonne

5 kg

200 kg

800 kg

330 grams/tonne

7.5 kg

150 kg

850 kg

440 grams/tonne

10 kg

100 kg

900 kg

880 grams/tonne

20 kg

50 kg

950 kg

1760 grams/tonne

40 kg

25 kg

975 kg

* The resultant medicated complete feed containing 44 grams of antibiotic activity per metric tonne should be fed as the sole ration to growing swine up to a weight of 57 kg.

WARNINGS: Treated swine must not be slaughtered for use in food for at least 24 hours after the latest treatment with this drug.


1. Do not allow rabbits, hamsters, guinea pigs, horses, dairy cattle or other ruminants access to feeds containing lincomycin. Ingestion by these species may result in severe gastrointestinal effects or metabolic disorders (i.e. Ketosis in dairy cattle).

2. Good manufacturing practices should be observed in preparing feeds containing this premix. This includes appropriate clean-out procedures to avoid cross contamination.

3. Only for use in growing swine up to 57 kg body weight.

4. Treated pigs may develop some stool softening or mild diarrhea within 36 hours of treatment initiation. Signs of mild irritation and swelling of the anus and/or vulva may be associated with the stool changes. These side effects are transient and self correcting by the fifth to eighth day of treatment. Should these reactions be more severe than described above discontinue the use of the drug.

5. Feed only to swine intended for slaughter.

Medicinal Ingredients

Each kg contains:

Lincomycin base (as lincomycin hydrochloride)

22 g

Spectinomycin base (as spectinomycin sulfate)

22 g

1 kg = 2.2 lb = 1000 grams


Store in a dry place to prevent caking.

Zoetis is a trademark and L-S is a registered trademark of Zoetis or its licensors, used under license by Zoetis Canada Inc.

Zoetis Canada Inc., Kirkland QC H9H 4M7

? 1-800-?1-0917



25 kg



NAC No.: 1198296.3

Order Desk:   800-663-8888
Technical Services Canada:   800-461-0917
Technical Services USA:   800-366-5288
Every effort has been made to ensure the accuracy of the L-S 20 Premix information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the Canadian product label or package insert.

Copyright © 2019 Animalytix LLC. Updated: 2018-11-30