Product Information

Description

Product details

Doxycycline is a broad-spectrum tetracycline antibiotic used to treat a variety of bacterial infections in dogs, cats, and horses.

Treats infections, including (but not limited to) toxoplasmosis and chlamydia in cats, and Lyme disease and Rocky Mountain spotted fever in dogs.
Can be used for certain tick-borne and respiratory conditions in horses
Must be given with a moist treat and/or small amount of liquid; may damage the throat/esophagus if not completely swallowed.
May be prescribed for other animal species; please consult your veterinarian.
While this drug does not have an FDA-approved indication for all animal uses, it is commonly accepted for veterinarians to prescribe this medication for use in animals.

This product contains a chemical on the Prop 65 List.

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

For

Dogs, Cats, and Horses

Active ingredient(s)

Doxycycline hyclate

Common brand names

Vibramycin

Drug class

Tetracycline antibiotic

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

Doxycycline hyclate tablets should be given orally as directed by your veterinarian. Wash your hands thoroughly with soap and water after handling the medication.

Doxycycline can damage the throat and esophagus if not completely swallowed, especially in cats. This medication must be given with a small amount of moist food or liquid (2 to 3 mL of water is recommended) that does not contain iron or dairy products.

Administer the complete course of the medication as prescribed, even if your pet's condition has improved. Failure to administer the entire course of treatment may cause recurrence or worsening of the infection. Contact your veterinarian ahead of time if your pet needs a refill.

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

Possible side effects may include (but are not limited to): stomach upset, decreased appetite, vomiting, and diarrhea.

Doxycycline may increase sensitivity to the sun. Sunburn may be more likely to occur in hairless areas including the nose, eyelids, and ears. Prolonged or direct sun exposure should be avoided while taking this medication.

Contact your veterinarian immediately if your pet has bloody stool or vomit, complete loss of appetite, difficulty swallowing, or yellowing of the skin, whites of the eyes, and/or gums.

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

Do NOT dry pill this medication; tablets should be administered with a small amount of moist food and/or liquid (2 to 3 mL of water is recommended) that does not contain iron or dairy products.

Use with caution in animals with difficulty swallowing or preexisting liver impairment.

Safe use of this medication has not been established in breeding, pregnant, or lactating animals.

Do not administer to animals with a known history or suspected allergy/hypersensitivity to any tetracycline antibiotic, including 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

Doxycycline should be given at least 2 hours before or after multivitamins, calcium or iron supplements, antacids, dairy products, or laxatives to ensure proper absorption.

The following drugs* may have potential interactions with this medication: aluminum-, calcium-, and magnesium-containing foods or medications (e.g., dairy products, antacids, multivitamins), anti-diarrheal compounds containing kaolin and pectin or bismuth, calcium or iron supplements, phenobarbital, probiotics, sucralfate, and warfarin.

*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: 4/29/2025

Description
Product details
Doxycycline is a broad-spectrum tetracycline antibiotic used to treat a variety of bacterial infections in dogs, cats, and horses.
- Treats infections, including (but not limited to) toxoplasmosis and chlamydia in cats, and Lyme disease and Rocky Mountain spotted fever in dogs.
- Can be used for certain tick-borne and respiratory conditions in horses
- Must be given with a moist treat and/or small amount of liquid; may damage the throat/esophagus if not completely swallowed.
- May be prescribed for other animal species; please consult your veterinarian.
- While this drug does not have an FDA-approved indication for all animal uses, it is commonly accepted for veterinarians to prescribe this medication for use in animals.
This product contains a chemical on the Prop 65 List.

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

For
Dogs, Cats, and Horses

Active ingredient(s)
Doxycycline hyclate

Common brand names
Vibramycin

Drug class
Tetracycline antibiotic

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
Doxycycline hyclate tablets should be given orally as directed by your veterinarian. Wash your hands thoroughly with soap and water after handling the medication.

Doxycycline can damage the throat and esophagus if not completely swallowed, especially in cats. This medication must be given with a small amount of moist food or liquid (2 to 3 mL of water is recommended) that does not contain iron or dairy products.

Administer the complete course of the medication as prescribed, even if your pet's condition has improved. Failure to administer the entire course of treatment may cause recurrence or worsening of the infection. Contact your veterinarian ahead of time if your pet needs a refill.

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
Possible side effects may include (but are not limited to): stomach upset, decreased appetite, vomiting, and diarrhea.
Doxycycline may increase sensitivity to the sun. Sunburn may be more likely to occur in hairless areas including the nose, eyelids, and ears. Prolonged or direct sun exposure should be avoided while taking this medication.
Contact your veterinarian immediately if your pet has bloody stool or vomit, complete loss of appetite, difficulty swallowing, or yellowing of the skin, whites of the eyes, and/or gums.

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
Do NOT dry pill this medication; tablets should be administered with a small amount of moist food and/or liquid (2 to 3 mL of water is recommended) that does not contain iron or dairy products.
Use with caution in animals with difficulty swallowing or preexisting liver impairment.
Safe use of this medication has not been established in breeding, pregnant, or lactating animals.

Do not administer to animals with a known history or suspected allergy/hypersensitivity to any tetracycline antibiotic, including 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
Doxycycline should be given at least 2 hours before or after multivitamins, calcium or iron supplements, antacids, dairy products, or laxatives to ensure proper absorption.
The following drugs* may have potential interactions with this medication: aluminum-, calcium-, and magnesium-containing foods or medications (e.g., dairy products, antacids, multivitamins), anti-diarrheal compounds containing kaolin and pectin or bismuth, calcium or iron supplements, phenobarbital, probiotics, sucralfate, and warfarin.
*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: 4/29/2025
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