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Sulfadimethoxine

Sulfadimethoxine (brand name: Albon®) is a sulfonamide antimicrobial usually used to treat coccidiosis but can also be used to treat other types of infections in dogs and cats.

Its use in small mammals and reptiles to treat coccidia or other infections is “off label” or “extra label”. Many drugs are commonly prescribed for off-label use in veterinary medicine. In these instances, follow your veterinarian’s directions and cautions very carefully, as their directions may be significantly different from those on the label.

How is sulfadimethoxine given?

This medication takes effect quickly, in about 1 to 2 hours, but visible effects may take a few days to be recognized.

People with allergies to sulfa compounds should avoid handling this medication or should use gloves while administering this medication.

What if I miss giving my pet the medication?

If you miss a dose, give it when you remember and continue with the regular dosing schedule. However, if the next scheduled dose is less than 12 hours away, give the missed dose, skip the next scheduled dose, and then return to the regular dosing schedule. Never give your pet two doses at once or give extra doses. For example:

Are there any potential side effects?

Common side effects in dogs include:

Possible serious side effects include:

Less common side effects include:

This short-acting medication should stop working within 24 hours, although effects can be longer in pets with liver or kidney disease.

Are there any risk factors for this medication?

Sulfadimethoxine SHOULD NOT be used in pets that:

Sulfadimethoxine should be used cautiously in:

Are there any drug interactions I should be aware of?

Certain medications should be used with caution when given with sulfadimethoxine, including but not limited to:

Be sure to tell your veterinarian about any medications (including vitamins, supplements, or herbal therapies) that your pet is taking.

Is there any monitoring that needs to be done with this medication?

How do I store sulfadimethoxine?

What should I do in case of emergency?

If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately. If they are not available, follow their directions in contacting an emergency facility

© Copyright 2025 LifeLearn Inc. Used and/or modified with permission under license. This content written by LifeLearn Animal Health (LifeLearn Inc.) is licensed to this practice for the personal use of our clients. Any copying, printing or further distribution is prohibited without the express written consent of LifeLearn. This content does not contain all available information for any referenced medications and has not been reviewed by the FDA Center for Veterinary Medicine, or Health Canada Veterinary Drugs Directorate. This content may help answer commonly asked questions, but is not a substitute for medical advice, or a proper consultation and/or clinical examination of your pet by a veterinarian. Please contact your veterinarian if you have any questions or concerns about your pet’s health. Last updated on Feb 14, 2024.

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