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Selevit 100mL Injection is a veterinary injectable formulation combining vitamin E and selenium, two important nutrients involved in normal antioxidant protection, muscle function and metabolic processes. Products marketed under the Selevit name are available in different formulations, so the exact concentration and approved animal species should always be confirmed from the label of the particular 100mL bottle.

A current product record from the European veterinary medicines database identifies a Selevit injectable solution containing sodium selenite and alpha-tocopheryl acetate (vitamin E), with administration by the subcutaneous or intramuscular route and use in specified cattle, sheep, pigs and young horses. Another current manufacturer source identifies a Selevit 100mL formulation containing 75mg vitamin E and 0.75mg selenium per mL, marketed as an injectable emulsion for cattle, sheep, goats and pigs.

Because these formulations are not identical, it is important not to assume that every Selevit product has the same concentration. One official manufacturer page, for example, describes a separate Selevit Complex formulation containing 250 micrograms of selenium per mL and 25mg of alpha-tocopherol acetate per mL.

For this reason, Horse Vet Meds recommends checking the manufacturer’s label and applicable veterinary product information before administration.

What Is Selevit 100mL?

Selevit is a veterinary nutritional injectable designed to provide vitamin E and selenium.

Vitamin E is a fat-soluble vitamin that contributes to antioxidant protection and normal cellular function. Selenium is an essential trace mineral that forms part of several important biological systems, including antioxidant enzymes.

Together, vitamin E and selenium have an important relationship in normal muscle and metabolic function.

Veterinary products containing these nutrients can be used when an animal has a diagnosed or suspected deficiency, when supplementation is clinically indicated, or where the specific product is authorized for prevention of deficiency.

A current Selevit product listing describes the product as an injectable emulsion and identifies its purpose as the treatment and prevention of vitamin E and selenium deficiency states in the listed animal species.

Selevit 100mL Composition

The exact composition depends on the Selevit formulation.

For one currently listed Selevit 100mL formulation from Syva, each mL contains:

• Vitamin E (all-rac-alpha-tocopheryl acetate): 75mg
• Selenium: 0.75mg
• Selenium supplied in the form of sodium selenite equivalent to 1.64mg sodium selenite per mL.

A separate Selevit Complex formulation has a different concentration of selenium and vitamin E.

This distinction matters when calculating or discussing administration.

Do not use the concentration from one Selevit formulation for another Selevit product.

Vitamin E in Selevit

Vitamin E is an important nutrient for animals.

It contributes to antioxidant protection by helping protect cells from oxidative damage.

Vitamin E also has an important relationship with normal:

• Muscle function
• Cellular function
• Immune function
• Metabolic processes
• Reproductive health
• Neuromuscular function

The animal’s requirement for vitamin E can vary according to species, age, diet, workload, physiological condition and other factors.

When dietary intake is insufficient or when a veterinarian identifies a nutritional deficiency, supplementation may be appropriate.

Selenium in Selevit

Selenium is an essential trace element.

It participates in important enzyme systems involved in antioxidant defense and normal physiological function.

However, selenium has a relatively narrow margin between nutritional requirement and toxicity compared with many other nutrients.

That means supplementation should be carefully controlled.

More selenium is not automatically better.

A veterinarian should consider the animal’s existing dietary selenium intake and any other selenium-containing supplements before recommending injectable supplementation.

Vitamin E and Selenium Together

Vitamin E and selenium are frequently discussed together because they have complementary roles in antioxidant defense.

A deficiency of either nutrient can affect normal physiological processes.

Veterinary formulations combining vitamin E and selenium are therefore used in situations where supplementation of both nutrients is appropriate.

Selevit provides these nutrients in an injectable form, allowing administration under veterinary supervision.

The exact reason for treatment should be established before supplementation.

Selevit 100mL for Horses

Although some Selevit formulations are primarily marketed for cattle, sheep, goats and pigs, veterinary records also identify a Selevit injectable solution for young horses/foals.

This is important because the target species can differ between formulations.

Horse owners should therefore check the exact product label rather than assuming that a Selevit product intended for cattle or sheep is automatically approved for horses.

For horses, vitamin E and selenium nutrition can be particularly relevant to normal muscle and neuromuscular function.

A veterinarian can assess whether supplementation is actually required based on diet, clinical findings and the animal’s individual circumstances.

Selevit for Foals

The European veterinary medicine database specifically identifies horse foals among the target animals for one Selevit injectable solution.

Young animals have changing nutritional requirements as they grow.

However, injectable selenium should not be administered simply because a foal is young.

The veterinarian should determine whether supplementation is justified and select a formulation approved for the animal’s species and age.

This is especially important because excessive selenium can be harmful.

Selevit for Cattle

Some Selevit formulations are authorized for cattle.

Vitamin E and selenium supplementation may be relevant when a nutritional deficiency has been identified.

The specific product information should be consulted for the approved cattle categories and administration instructions.

The current European product record for one Selevit injection identifies cattle among the target species and provides separate withdrawal information for different administration routes.

Selevit for Sheep and Goats

Selevit 100mL formulations are also marketed for sheep and goats.

The current Syva product information describes vitamin E and selenium injectable supplementation for sheep and goats, with intramuscular or subcutaneous administration.

Young lambs and kids can have particular nutritional requirements, but supplementation should be based on veterinary assessment and the exact product instructions.

Selevit for Pigs

Some Selevit formulations are approved for pigs and piglets.

The manufacturer’s current information describes use for prevention and treatment of vitamin E and selenium deficiency states in the listed species.

The appropriate amount depends on the specific formulation, animal weight and veterinary indication.

Selevit and Nutritional Deficiency

Nutritional deficiencies can occur when animals do not receive sufficient nutrients through their diet.

Factors that can contribute include:

• Poor-quality feed
• Unbalanced diets
• Increased nutritional requirements
• Growth
• Pregnancy
• Lactation
• Stress
• Certain environmental conditions
• Reduced feed intake

However, symptoms associated with nutritional deficiency can overlap with many other diseases.

Veterinary assessment is therefore important before treatment.

Selevit and Muscle Function

Vitamin E and selenium are closely associated with normal muscle metabolism.

Nutritional deficiencies involving these nutrients can contribute to neuromuscular problems in susceptible animals.

For this reason, veterinarians may consider vitamin E and selenium status when evaluating animals showing signs such as:

• Muscle weakness
• Stiffness
• Exercise intolerance
• Poor muscular development
• Abnormal gait
• Reduced physical performance

These symptoms have many possible causes, so they should not automatically be attributed to vitamin E or selenium deficiency.

Selevit for Working and Performance Animals

Horses involved in demanding physical activity may have increased nutritional considerations.

This can include:

• Racehorses
• Sport horses
• Eventing horses
• Endurance horses
• Working horses

A balanced diet is the foundation of nutritional management.

Vitamin and mineral supplementation should be based on the animal’s actual requirements rather than simply increasing supplementation because the animal is athletic.

For competition horses, owners should also check the applicable medication and supplement rules before administering any injectable product.

Selevit Administration

Depending on the formulation, Selevit products may be administered intramuscularly or subcutaneously.

For example, the current Syva product information identifies both routes for its Selevit 100mL formulation.

A separate European veterinary medicine record likewise lists intramuscular and subcutaneous administration for a Selevit injectable solution.

The route should always be confirmed against the exact product label.

Injection should be performed by a veterinarian or appropriately trained veterinary professional.

Selevit Dosage

Because different Selevit products contain different concentrations of vitamin E and selenium, there is no single universal Selevit dosage that applies to every 100mL bottle.

For example, the current Syva Selevit 100mL product lists 75mg vitamin E and 0.75mg selenium per mL, while another Selevit Complex formulation lists substantially different concentrations.

The veterinarian should calculate the appropriate amount based on:

• Exact product concentration
• Animal species
• Body weight
• Age
• Nutritional status
• Clinical indication
• Route of administration
• Other selenium sources

Never calculate a dose using a concentration from another Selevit product.

Why Selenium Dosage Requires Care

Selenium is an essential nutrient, but excessive intake can cause toxicity.

This makes accurate dosing particularly important.

Owners should tell their veterinarian about all nutritional products the animal receives, including:

• Mineral blocks
• Feed supplements
• Multivitamins
• Injectable vitamins
• Selenium supplements
• Premixes
• Fortified feeds

The veterinarian can determine whether the total selenium intake is appropriate.

Selevit and Vitamin E Deficiency

Vitamin E deficiency can occur when dietary intake does not meet the animal’s requirements.

A veterinarian may consider dietary history, clinical signs and laboratory testing where appropriate.

Injectable supplementation may be considered when the specific product is authorized and supplementation is clinically indicated.

The goal should always be to correct a documented or clinically relevant nutritional deficiency rather than administer unnecessary medication.

Selevit and Selenium Deficiency

Selenium deficiency is influenced by geographical and dietary factors.

Some soils and feeds contain relatively low selenium levels, while other areas can have higher selenium availability.

This means an animal’s selenium status cannot reliably be determined simply from its geographic location.

Veterinary nutritional assessment can help determine whether supplementation is appropriate.

Selevit Safety

Selevit should be treated as a veterinary medicine rather than an ordinary nutritional product.

Important safety principles include:

• Use the correct formulation.
• Confirm the target species.
• Follow the label.
• Use the correct concentration.
• Do not exceed the recommended amount.
• Avoid unnecessary selenium supplementation.
• Inform the veterinarian about other supplements.
• Observe withdrawal requirements where applicable.

Selenium Toxicity

Too much selenium can be harmful.

Possible signs of selenium toxicity can vary with species and severity.

Potential concerns include:

• Gastrointestinal disturbances
• Weakness
• Abnormal gait
• Respiratory problems
• Neurological signs
• Acute illness

Severe selenium poisoning can be life-threatening.

This is why selenium-containing injections should only be administered according to veterinary directions.

Selevit Side Effects

Any injectable veterinary product can potentially produce an injection-site reaction.

Other adverse reactions may occur depending on:

• Product formulation
• Dose
• Animal species
• Individual sensitivity
• Route
• Existing disease

If an animal develops an unusual reaction following injection, veterinary advice should be sought promptly.

Selevit and Pregnancy

Pregnant animals have specialized nutritional requirements.

Vitamin E and selenium may be important components of reproductive nutrition, but injectable supplementation during pregnancy should be based on the exact veterinary product and professional assessment.

Some Selevit formulations have specific directions concerning reproductive animals.

Do not extrapolate instructions from one species or product to another.

Selevit and Food-Producing Animals

Some Selevit products are authorized for food-producing animals.

Where this applies, withdrawal periods are product- and jurisdiction-specific.

For example, the current European product database lists different withdrawal periods according to species and route for one Selevit injectable formulation.

The manufacturer’s Spanish product information also provides species-specific meat and milk restrictions.

Customers should therefore always follow the withdrawal period printed in the applicable local product information.

Selevit Storage

Storage requirements vary according to the manufacturer and formulation.

Before using Selevit 100mL, check the vial and package insert for:

• Storage temperature
• Light protection
• Shelf life
• In-use shelf life
• Handling after opening

Do not use a product that is expired, damaged or has been stored outside the manufacturer’s recommended conditions.

Buying Selevit 100mL

When searching for Selevit 100mL Injection, customers should verify more than the product name.

Important identification details include:

The exact composition and approved species should always be confirmed from the product label because Selevit formulations differ.

Selevit 100mL for International Customers

Customers searching for Selevit from the USA, Canada, Australia, France, Germany, Spain, the Netherlands, Mexico and other countries should verify local authorization before purchasing.

Veterinary medicine registrations can differ considerably between countries.

A product registered in Spain or another European country is not automatically approved for the same use in the United States, Canada or Australia.

The appropriate local veterinary authority and veterinarian should be consulted where necessary.

Frequently Asked Questions

What is Selevit 100mL Injection?

Selevit 100mL is a veterinary injectable formulation containing vitamin E and selenium. Different Selevit products have different concentrations and approved species.

What does Selevit contain?

A current Selevit 100mL formulation contains 75mg vitamin E and 0.75mg selenium per mL.

Is Selevit used for horses?

Some Selevit injectable formulations are authorized for young horses/foals.

Is Selevit used for cattle?

Yes, certain Selevit formulations are authorized for cattle.

Is Selevit used for sheep and goats?

Yes. Certain 100mL Selevit formulations are marketed for sheep and goats.

How is Selevit administered?

Depending on the formulation, Selevit may be administered intramuscularly or subcutaneously.

Can I use the same Selevit dose for every product?

No. Different Selevit formulations have different concentrations, so the dosage must be determined from the exact product label and veterinary instructions.

Is selenium safe for animals?

Selenium is an essential nutrient, but excessive amounts can be toxic. Accurate dosing is therefore important.

Can Selevit be used in competition horses?

The applicable competition rules should be checked before administration. Nutritional or injectable products can be subject to sport-specific regulations.

Does Selevit require veterinary supervision?

Injectable selenium and vitamin E products should be used under appropriate veterinary direction, particularly because selenium has a relatively narrow safety margin.

Selevit 100mL Injection — Horse Vet Meds

Selevit 100mL Injection is a vitamin and trace-mineral veterinary formulation combining vitamin E and selenium for appropriate nutritional supplementation. Selevit products are available in different formulations, making accurate product identification especially important. A current veterinary product record identifies sodium selenite and alpha-tocopheryl acetate as active substances and lists intramuscular and subcutaneous administration for specified cattle, sheep, pigs and young horses.

Another current manufacturer listing for Selevit 100mL identifies 75mg of vitamin E and 0.75mg of selenium per mL, with the product presented as an injectable emulsion for cattle, sheep, goats and pigs. This formulation is intended for treatment and prevention of deficiency states involving vitamin E and selenium.

Vitamin E and selenium have important roles in normal antioxidant protection and physiological function. They are particularly relevant to muscle and metabolic health, making adequate nutritional intake an important part of responsible animal management. However, supplementation should not be based solely on the assumption that an animal needs additional vitamins or minerals. Diet, age, species, workload, geographical factors and existing supplementation should all be considered.

For horse owners, it is especially important to verify the precise Selevit formulation. Some Selevit products are registered for foals or other animal species, while other formulations have different target species. The 100mL bottle size alone does not establish which formulation is being supplied.

Selenium also requires particular care because excessive intake can be harmful. Owners should disclose all selenium-containing feeds, mineral supplements and injectable products to their veterinarian before additional supplementation is administered.

For customers searching for Selevit 100mL Injection, Selevit for horses, Selevit vitamin E selenium injection, selenium and vitamin E injection, or Selevit injectable veterinary supplement, Horse Vet Meds provides product-focused information designed to help customers understand the product and verify the correct formulation before use.

Customers in the United States, Canada, Australia, France, Germany, Spain, the Netherlands, Mexico and other international markets should also verify local veterinary regulations, because product authorization, prescription status, approved species and withdrawal requirements can vary between countries.

Most importantly, the exact bottle label should remain the final reference for composition, concentration, approved species, administration route, dosage, storage and withdrawal information. This is particularly important for Selevit because multiple formulations exist internationally

Selevit 100ml Mineral and vitamin trace element in injectable emulsion SYVA Laboratory Pharmaceutical Injectable emulsion (Emul.i.) Composition for Selevit 100ml: per ml:
Selenium (as sodium selenite) 250 mcg
to tocopherol acetate (vitamin E) 25 mg.tions and target species of Selevit 100ml:
Sheep and Goats: White muscle disease.
Pigs: Blackberry heart disease, dietary hepatosis.
In general, diseases caused by deficiency of vitamin E and selenium

Selevit 100ml Per ml: Selenium 0.15 mg, Tocopherol (vit E) 70 mg, Cyanocobalamin (vit B12) 0.1 mg, Adenosine 5 monophosphoric acid (AMP) 5 mg

Indications

– For the treatment and prevention of muscular dystrophy in calves, lambs, pigs;
– Muscle overwork:
– Neuritis, myositis, mioastenie;
– Hepatosis dietetica and microangiopathy of pigs

Dosage and administration

Intramuscular, subcutaneus or intravenous (very slow) injection

Calves: 10 – 20 ml
Lambs:  10 ml
Pigs: 10 ml
Horses: 10 – 20 ml

As a treatment: one injection a day during 5 days.
As preventive: one injection a week for 5 weeks, after the 10th day after birth

Selevit 100ml
Mineral and vitamin trace element in
injectable emulsion SYVA
Laboratory
Pharmaceutical
form of S
Injectable emulsion (Emul.i.)
Composition for 
Selenium (as sodium selenite) 250 mcg
to tocopherol acetate (vitamin E) 25 mg.
Indications and target species of 
Sheep and Goats: White muscle disease.
Pigs: Blackberry heart disease, dietary hepatosis.
In general, diseases caused by deficiency of vitamin E and selenium.
Route of administration for 
Intramuscular or subcutaneous.
Dosage :
Sheep and Goats:
Newborn lambs and kids: 1 ml / animal.
Lambs and kids over 2 weeks of age: 2 ml / 10 kg pv
Sheep and Goats (to prevent vitamin E and selenium deficiency in lambs and kids): 2.40
ml / 10 kg pv, after the third month of gestation .
Pigs:
Piglets: 1 ml / animal.
Weaning pigs: 2 ml / 10 kg pv
Sows (to prevent vitamin E and selenium deficiency in piglets): 2.40 ml / 10 kg pv
Waiting time for Selevit 100ml:
Meat: 14 days.
Observations 
With veterinary prescription.
Presentation 
Containers with 100 and 250 ml.
Reg. Nº:
0993 ESP

Waiting time for Selevit 100ml:
Meat: 14 days.
Observations 
With veterinary prescription.
Presentation