Denagard Logo

Denagard® (tiamulin hydrogen fumarate)

Reduce the impact of two costly enteric diseases
Hemicell logo

Hemicell® (β-mannanase)

β-Mannans: the problem component in soybean meal
Kavault logo

Kavault® (Avilamycin)

Reduce the incidence and overall severity of E. coli scours
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Paylean® (Ractopamine hydrochloride)

The choice for improved late-finishing performance and profitability

Prevacent® PRRS

pulmotil logo

Pulmotil® (tilmicosin)

Control respiratory disease associated with Actinobacillus pleuropneumoniae or Pasteurella multocida
pulmotil AC logo

Pulmotil® AC (tilmicosin phosphate)

Go with the flow to help control swine respiratory disease (SRD)*
Skycis Logo

Skycis® (Narasin)

Ionophores: Innovation for a productive future
Tylan® Injection

Tylan® Injection

Effective at treating swine arthritis* in valuable breeding animals and finishers
Tylan® Logo

Tylan® Premix (Tylosin phosphate)

Proven control of ileitis* for dependable, reliable results

Tylan® Soluble (Tylosin tartrate)

Effective control of ileitis

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Skycis® (Narasin)

Efficiency. Performance. Profitability.

icon number 1
Skycis® is the only ionophore available to U.S. pork producers and is indicated for increased weight gain and improved feed efficiency in growing-finishing swine when fed for at least four weeks.
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When maximum weight is needed quickly to meet space requirements, contract timing or other market influences, Skycis helps to maximize feed efficiency, increasing weight gain and ultimately, carcass weight and yield.1
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The active ingredient, narasin, balances digestive system bacteria to deliver consistent growth and performance in growing and finishing pigs. Skycis drives weight gain and feed efficiency by improving feed utilization and increasing energy availability.1

When fed according to label directions, Skycis has:

skycis label

Phase Feeding1

Skycis fed 28-50 days.

phase feeding

Extended Feeding1

Skycis fed for more than 50 days.

extended feeding

Managing Weight Variation

Weight variation impacts profitability. At some point, returns start to decrease due to poor feed efficiency, packer discounts, or both. Operational choices should be selected that minimize distribution and maximize the return where the majority of the pigs land on the grid. Reducing variation targets a more profitable weight for the entire population.
weight variation diagram
weight distribution diagram


  • Do not allow adult turkeys, horses or other equines access to narasin formulations. Ingestion of narasin by these species has been fatal. Not approved for use in breeding animals because safety and effectiveness have not been evaluated in these animals.
  • Swine being fed with Skycis (narasin) should not have access to feeds containing pleuromutilins (e.g., tiamulin) as adverse reactions may occur. If signs of toxicity occur, discontinue use.
  • No withdrawal period is required when used according to the label.

The label contains complete use information, including cautions and warnings. Always read, understand and follow the label and use directions.

Communicate Skycis inclusions in feed to the full production system prior to use. Proper training, formulations, mixing and concentration levels are important to successfully implement Skycis.

diet table

1 Elanco Animal Health. Data on file.

Skycis is a trademark of Elanco or its affiliates.