Product Information

Description

Product details

Levetiracetam (extended-release) is an anticonvulsant medication used to treat seizures and epilepsy in dogs and cats. It is frequently given with other medications to help achieve optimal seizure control.

*Note: Levetiracetam ER (Extended Release) Tablets should not be confused (and are not typically considered interchangeable) with Levetiracetam Immediate Release Tablets.

May be used alone or in combination with other anti-seizure medications
Can be an option for pets who do not tolerate phenobarbital or bromides
Extended-release tablets are typically given less frequently than immediate release tablets, but these tablets should NOT be split or crushed.
Because these tablets should not be split or crushed, they may not be a practical option for small dogs and cats or pets with difficulty swallowing.
May be used for other animal species; please consult your veterinarian.

While this medication does not have an FDA-approved indication for animal use, it is a common and acceptable practice for veterinarians to prescribe this human medication for use in animals.

*Please note: this is a generic medication. Product packaging and appearance, including size, color, and shape, may differ from the description or images provided and are subject to manufacturer availability.

Sourced directly from the manufacturer or their approved distributor. Guaranteed genuine product backed by the manufacturer.

For

Dogs and Cats

Active ingredient(s)

Levetiracetam (extended-release)

Common brand names

Keppra XR®

Drug class

Anticonvulsant

Product strength & size

This product is available in multiple strengths and sizes; please select the appropriate option for your pet as recommended by your veterinarian.

For current availability, please refer to the product selection above.

Usage

Levetiracetam ER (extended-release) should be given orally as directed by your veterinarian. Extended-release tablets should NOT be split, crushed, or chewed.

Do not discontinue this medication abruptly. Please consult your veterinarian before making any changes or discontinuing the prescribed dosing schedule.

This medication can be given with or without food. If your pet vomits or appears unwell after receiving a dose on an empty stomach, give future doses with food or a small treat. If vomiting continues, contact your veterinarian.

Missed doses

Administer the dose as soon as possible. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not give two doses at once.

Storage

Store in a cool, dry place at a controlled room temperature (68 to 77°F, excursions permitted between 59 and 86°F). Keep in a tight, light-resistant container and out of the reach of children and pets. Store away from heat and direct sunlight. Do not store in the bathroom, near the kitchen sink, or in damp places. The medicine may break down if exposed to heat or moisture.

Side effects

Levetiracetam is typically well tolerated in dogs and cats. Common side effects include (but may not be limited to): sedation and lethargy. Appetite loss and excessive salivation have also been reported in cats. These effects may be temporary and diminish over time.

In some cases, gastrointestinal upset (e.g., vomiting) and behavioral changes have been reported.

Notify your veterinarian if your pet experiences any of the effects described above, or if you notice any other side effects that are persistent or troublesome.

If you notice anything unusual, please consult your veterinarian.

Precautions

This medication should not be discontinued abruptly. Please consult your veterinarian before making any changes to the prescribed dosing schedule.

Use with caution in animals with kidney impairment or preexisting kidney disease. Dose adjustments may be required in these patients.

Use with caution in breeding, pregnant, or nursing animals.

Do not administer to animals with a known history or suspected allergy/hypersensitivity to this medication or any of its ingredients. Allergic reactions to medications may occur. Be sure to inform Vetsource and your veterinarian if your pet has any known drug sensitivities or allergies.

If your pet displays symptoms of an allergic reaction, discontinue therapy and call your veterinarian immediately or seek emergency veterinary attention. Symptoms may include (but are not limited to): swollen lips, tongue, face, or airways, difficulty breathing, agitation, profuse salivation, and widespread hives or itching.

Drug and food interactions

The following drugs* may have potential interactions with this medication: amitriptyline, clomipramine, CNS depressant drugs (e.g., acepromazine, hydroxyzine, opioids), gabapentin, and methotrexate. Animals taking phenobarbital concurrently may require dose adjustments.

*NOTE: this may not be a comprehensive list. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.

Please ensure your veterinarian is aware of all medications and supplements that your pet is currently receiving. Your veterinarian may prescribe multiple medications, even if a potential drug interaction may occur. In these instances, your veterinarian may adjust the dosages or monitor your pet more closely.

Adverse reactions

If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource Pet Owner Care at 877-738-4443.

Last revised: 4/15/2025

Description
Product details
Levetiracetam (extended-release) is an anticonvulsant medication used to treat seizures and epilepsy in dogs and cats. It is frequently given with other medications to help achieve optimal seizure control.
*Note: Levetiracetam ER (Extended Release) Tablets should not be confused (and are not typically considered interchangeable) with Levetiracetam Immediate Release Tablets.
- May be used alone or in combination with other anti-seizure medications
- Can be an option for pets who do not tolerate phenobarbital or bromides
- Extended-release tablets are typically given less frequently than immediate release tablets, but these tablets should NOT be split or crushed.
- Because these tablets should not be split or crushed, they may not be a practical option for small dogs and cats or pets with difficulty swallowing.
- May be used for other animal species; please consult your veterinarian.
While this medication does not have an FDA-approved indication for animal use, it is a common and acceptable practice for veterinarians to prescribe this human medication for use in animals.

*Please note: this is a generic medication. Product packaging and appearance, including size, color, and shape, may differ from the description or images provided and are subject to manufacturer availability.

Sourced directly from the manufacturer or their approved distributor. Guaranteed genuine product backed by the manufacturer.

For
Dogs and Cats

Active ingredient(s)
Levetiracetam (extended-release)

Common brand names
Keppra XR®

Drug class
Anticonvulsant

Product strength & size
This product is available in multiple strengths and sizes; please select the appropriate option for your pet as recommended by your veterinarian.
For current availability, please refer to the product selection above.

Usage
Levetiracetam ER (extended-release) should be given orally as directed by your veterinarian. Extended-release tablets should NOT be split, crushed, or chewed.
Do not discontinue this medication abruptly. Please consult your veterinarian before making any changes or discontinuing the prescribed dosing schedule.
This medication can be given with or without food. If your pet vomits or appears unwell after receiving a dose on an empty stomach, give future doses with food or a small treat. If vomiting continues, contact your veterinarian.

Missed doses
Administer the dose as soon as possible. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not give two doses at once.

Storage
Store in a cool, dry place at a controlled room temperature (68 to 77°F, excursions permitted between 59 and 86°F). Keep in a tight, light-resistant container and out of the reach of children and pets. Store away from heat and direct sunlight. Do not store in the bathroom, near the kitchen sink, or in damp places. The medicine may break down if exposed to heat or moisture.

Side effects
Levetiracetam is typically well tolerated in dogs and cats. Common side effects include (but may not be limited to): sedation and lethargy. Appetite loss and excessive salivation have also been reported in cats. These effects may be temporary and diminish over time.
In some cases, gastrointestinal upset (e.g., vomiting) and behavioral changes have been reported.

Notify your veterinarian if your pet experiences any of the effects described above, or if you notice any other side effects that are persistent or troublesome.
If you notice anything unusual, please consult your veterinarian.

Precautions
This medication should not be discontinued abruptly. Please consult your veterinarian before making any changes to the prescribed dosing schedule.
Use with caution in animals with kidney impairment or preexisting kidney disease. Dose adjustments may be required in these patients.
Use with caution in breeding, pregnant, or nursing animals.

Do not administer to animals with a known history or suspected allergy/hypersensitivity to this medication or any of its ingredients. Allergic reactions to medications may occur. Be sure to inform Vetsource and your veterinarian if your pet has any known drug sensitivities or allergies.
If your pet displays symptoms of an allergic reaction, discontinue therapy and call your veterinarian immediately or seek emergency veterinary attention. Symptoms may include (but are not limited to): swollen lips, tongue, face, or airways, difficulty breathing, agitation, profuse salivation, and widespread hives or itching.

Drug and food interactions
The following drugs* may have potential interactions with this medication: amitriptyline, clomipramine, CNS depressant drugs (e.g., acepromazine, hydroxyzine, opioids), gabapentin, and methotrexate. Animals taking phenobarbital concurrently may require dose adjustments.
*NOTE: this may not be a comprehensive list. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.

Please ensure your veterinarian is aware of all medications and supplements that your pet is currently receiving. Your veterinarian may prescribe multiple medications, even if a potential drug interaction may occur. In these instances, your veterinarian may adjust the dosages or monitor your pet more closely.

Adverse reactions
If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource Pet Owner Care at 877-738-4443.

Last revised: 4/15/2025
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