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Treats cats and dogs
Easy to administer
Treats disease from ticks


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Generic available: Tetracycline Hydrochloride
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At a Glance
Treats cats and dogs
Easy to administer
Treats disease from ticks

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Comprehensive Guide to Tetracycline

Meet Veterinary Bacteriostatic Antibiotic: Tetracycline!

Tetracycline is an FDA-approved, prescription-only medication that treats cats and dogs suffering from various bacterial infections - leptospirosis, toxoplasmosis, and tick-related diseases. Tetracycline is a 500 mg oral capsule that is administered two to four times daily on an empty stomach and takes effect within one to two hours after administered.

How does Tetracycline work?

Tetracycline is a medication with one active ingredient. The tetracycline antibiotics' mechanism of action is through the bacteriostatic status. Bacteriostatic inhibits proper protein synthesis of bad bacteria growth by binding to bacterias' 30S ribosomes which are a major component of the translation and protein synthesis process of the bacteria.

How is Tetracycline 500 mg capsules administered?

Tetracycline (Hydrochloride) oral capsules are administered orally two to four times daily without food and on an empty stomach, at least one to two hours after meals or snacks. After giving the capsule orally, administer a syringe of water to prevent the risk of injury or stomach upsets.

NOTE: Make sure that the pet swallows the full capsule so as to avoid damage to the esophagus (i.e., never administer a dry pill). Also, keep fresh water accessible at all times.

What are the Tetracycline warnings of which you should be aware?

The following pets cannot be prescribed Tetracycline are those that are:

  • Allergic to the medication or active ingredient antibiotic

  • Pregnant

  • Young and growing

With these animals, the antibiotic can affect skeletal, tooth, and immune system development. Be wary of pets with pre-existing conditions, such as liver or kidney disease, or those that are lactating.

Tetracycline negative interactions with other drugs are certain antibiotics, antacids, neuromuscular blocking agents, or products containing aluminum, calcium, iron, magnesium, zinc, or bismuth. Be sure to tell your veterinarian about any medications (including vitamins, supplements, or herbal therapies) that your pet is taking.

What are the potential Tetracycline side effects of which you should be aware?

Tetracycline adverse effects reported are vomiting, decreased appetite, and diarrhea. Cats may experience more severe effects, such as stomach pain, fever, and hair loss. Serious side effects from long-time use can include liver toxicity, blood cell problems, thyroid problems, urinary stone formations, and light sensitivity.

Allergic reactions to the medication (e.g., hives, facial swelling, itchiness, etc.) or suspected overdose should cause immediate contact to your veterinarian's office or emergency facility.

Frequently Asked Questions
  1. What is Tetracycline?

    Tetracycline is an FDA-approved, prescription broad-spectrum bacteriostatic antibiotic, which is used to treat dogs and cats who suffer from bacterial infections and skin conditions with some immunomodulatory properties.

  2. Why is Tetracycline connected to stained teeth?

    Tetracyclines are considered safe when used at the recommended dosages for the recommended duration of time. However, tetracyclines have been associated with serious side effects, such as tooth discoloration (yellow, gray, or brown) and skeletal growth retardation.

  3. What is the proper Tetracycline dosage?

    The usual dose of Tetracycline in dogs is 10 mg per pet pound every eight hours. The usual dose of Tetracycline in cats is nine mg per pet pound every 8 to 12 hours.

  4. What is Tetracycline used for?

    Oral tetracycline is used in dogs and cats to treat susceptible bacterial infections and infections spread through infected animals and parasites. For example, Tetracycline is used to treat leptospirosis, toxoplasmosis, and tick-related diseases, including Lyme disease, ehrlichiosis, Rocky Mountain Spotted Fever, and salmon poisoning.

  5. What are the well-known Tetracycline brand names?

    Well-known antibiotic Tetracycline brand names are Achromycin, Medicycline, Sumycin, and Tetracyn.

  6. Is there a Tetracycline ointment?

    Veterinary Tetracycline is found in oral capsules, tablets, and syrups. The over-the-counter topical Tetracycline ointment is used by humans for medical acne problems, for instance.

Concluding Thoughts

The most important thing that you should know about antibiotic Tetracycline is its power to protect suffering from bacterial infections, especially from tick-related diseases.

DISCLAIMER: FDA law restricts Tetracycline only on order or prescription of a licensed veterinarian for the best pet health care advice. Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427, if this is a suitable product for your pet and your home. This informative article is not meant to substitute for the diagnosis, treatment, and professional advice from your veterinarian or other qualified professionals regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA-approved and/or EPA regulated when and as required by law.

  • Teva Animal Health Brand
  • Antibiotics Pharmacy
  • Senior Life Stage
  • Oral Application
  • Dog Pet Type

Can You Give Tetracycline to a Cat?

Tetracycline Hydrochloride Capsule USP 500mg for cats is found to be very effective against the treatment of various bacterial infections among your pets. It is found to be specifically useful for pets that show signs of susceptibility to bacterial infections. Although a key aspect to also note is that the medicine finds its wide usage not only in cats but other animals too. It is an oral medicine that aids in the control of toxoplasmosis, leptospirosis, and tick-related diseases too. Hence this medication can prove to be an all-round solution that can aid not only to control the bacterial infections of your cats but other diseases that are triggered by the infestation of the various pests. It is also important to administer such medication after knowing about their interactions with your petโ€™s body. This aspect specifically warrants the need for consultation with a veterinarian who knows the exact condition of your pet and hence can recommend medications accordingly.

Can You Get Tetracycline Over the Counter?

Tetracycline is very easily available in pharmaceutical stores. It is already a widely known fact that Tetracycline is a prescription medicine. So, the purchase of Tetracycline Over the Counter is not possible. It needs to accompany a prescription by a veterinarian. Therefore, you must first consult your veterinarian for the purchase of such drugs.

Does Tetracycline Have Side Effects?

Side effects caused due to oral consumption of Tetracycline are largely found in the gastrointestinal tract. The common side effects are diarrhea, anorexia, nausea, loss of appetite, and vomiting. It is often observed that some of your pets can not endure the oral consumption of Tetracycline due to their physiological differences. The symptoms of these discomforts can be seen in your pet as depression, headache, dizziness, hair loss, sore throat, the occurrence of fever, rectal discomfort, and abdominal pain. If any of the above-mentioned symptoms still persist or the situation worsens, it is highly recommended to contact your veterinarian for further professional support.

How Do Tetracyclines Destroy Bacteria?

The drug Tetracycline usually infiltrates the cell membrane of the bacterial cell or the pathogen by passively defusing itself which inhibits bacterial growth. This growth generally happens due to the gradual interference in the protein synthesis process. After long usage of Tetracycline in your pet, it is generally observed that the various bacterial bodies tend to form a resistance against any such antibacterial drugs. So precaution is advisable at all times.

What Kind of Bacteria Does Tetracycline Treat?

Tetracycline treats a large variety of bacterial infections that are normally found to be negatively affecting your pets. These ailments or afflictions can be found both internally and externally. Some of these ailments can come in the form of respiratory tract infection, pneumonia, mycoplasma, non-specific conjunctivitis, chlamydia. Tetracycline also treats infections such as lymphatic, ocular, epidermal, urinary, intestinal, genital. In addition, certain other special infections can be treated with Tetracycline which is caused by the bite of harmful entities such as infected animals, mites, lice, and ticks.

Why Is Tetracycline So Effective?

The drug Tetracycline specifically targets the faculty or aptitude of the bacterial entityโ€™s body by interfering with its facility in the production or creation of a specific few proteins that are vital to the growth of the bacteria. The drug deliberately targets the mechanization of the ribosome present in the bacterial cell. In this specific process what Tetracycline does is that it consistently attacks the 30S ribosome and alters the cytoplasmic membrane of the bacterial body. By doing this it interferes with the cellโ€™s operation of assembling the proteins from amino acids. As a result of this action, it indirectly controls or affects the cell growth of the organism rather than completely killing it.

How Long Does Tetracycline Stay In the Body?

To understand how long a medicine stays in your petโ€™s body you can follow a few easy steps. The first step is to know the half-life elimination period of the given medicine and the multiplier factor. Then, what you need to do is simply multiply the half-life elimination period of the medicine with the multiplier factor. In this case, the maximum half-life elimination period of Tetracycline is approximately 22 hours and the multiplier factor is 5.5. So, for the medicine to be completely clear from your petโ€™s body, it will take 121 hours (22 hours X 5.5), which is a little more than 5 days.

How Much Tetracycline Should I Give My Cat?

Regulation of proper dosage of Tetracycline for your cat is very important. Generally for your pet, whether it is a cat or a dog the amount prescribed remains the same. It is estimated that the proper dosage of Tetracycline for your pet should be around seven milligrams per two pounds of your petโ€™s body weight. For accurate application, it is advised to contact your veterinarian for an expert opinion.

Can I get antibiotics for my dog without going to the vet?

It's generally not recommended to give antibiotics to your dog without consulting a veterinarian first. Antibiotics are prescription medications, and their use should be guided by a professional who can diagnose the underlying condition and prescribe the appropriate antibiotic and dosage for your dog. Antibiotics are not one-size-fits-all medications. Different antibiotics target different types of bacteria, and the specific antibiotic needed depends on the type of infection and the susceptibility of the bacteria causing it. Additionally, giving antibiotics without proper diagnosis and monitoring can lead to antibiotic resistance or other adverse effects. Also, Over-the-counter (OTC) antibiotics specifically formulated for animals are generally not available.

Is amoxicillin good for pets?

Amoxicillin can be used in certain cases for pets, as it is an antibiotic commonly prescribed by veterinarians. It belongs to the class of antibiotics called penicillins and is effective against a variety of bacterial infections. Amoxicillin is often used to treat respiratory, skin, urinary tract, and gastrointestinal infections in dogs and cats. However, the use of amoxicillin or any other antibiotic should always be determined by a veterinarian. They will evaluate your pet's condition, conduct any necessary tests, and prescribe the appropriate medication and dosage.

Can I give my dog azithromycin 250 mg?

Azithromycin is an antibiotic commonly used to treat bacterial infections in humans. It can also be prescribed for certain infections in dogs, such as respiratory or skin infections. However, the dosage and treatment duration for dogs may differ from those used in humans. The common guideline for azithromycin use in dogs is 2.5 to 5 mg per pound (5 to 10 mg/kg) orally once daily. That means 250 mg would be too much for most dogs. Only a veterinarian who has examined your dog and is familiar with its specific health needs can determine the appropriate dosage and duration of treatment.

How much antibiotics can you give a dog?

The dosage of antibiotics for a dog depends on several factors, including the specific antibiotic being used, the dog's weight, the severity of the infection, and the individual dog's health condition. It is crucial to consult a veterinarian for accurate dosage instructions tailored to your dog's needs. Veterinarians determine the appropriate dosage based on factors such as the dog's size, age, overall health, and the type of infection being treated. Giving an incorrect dosage of antibiotics can be harmful and may lead to adverse effects or antibiotic resistance.

Can I give my dog doxycycline?

Doxycycline is an antibiotic commonly used in veterinary medicine to treat various bacterial infections in dogs. Doxycycline is commonly used to treat respiratory infections, tick-borne diseases (such as Lyme disease), urinary tract infections, skin infections, and certain other bacterial infections in dogs. The dosage of doxycycline and the duration of treatment will depend on the dog's weight, the specific condition being treated, and the veterinarian's assessment. However, only a qualified veterinarian can determine if doxycycline is appropriate for your specific dog and prescribe the correct dosage.

Tetracycline Hydrochloride

Contact veterinarian if your pet experiences nausea, loss of appetite, diarrhea and vomiting, depression, fever, and hair loss, photosensitivity, pustules or blisters on skin. Shield your pet from the sun. Immediately contact veterinarian if pet experiences an allergic reaction to the medication, signs may include facial swelling, hives, scratching, sudden onset of diarrhea, vomiting, shock, seizures, pale gums, cold limbs, or coma.

Administer Tetracycline to the exact specifications prescribed by veterinarian. Try to give Tetracycline orally without food, but the food may reduce side effects. Do not give with milk. Make sure pet swallows tablet, so as not to cause esophageal damage.

Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427.

This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian. Always seek the advice of your veterinarian or other qualified professional with any questions you may have regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA approved and/or EPA regulated when and as required by law.

How to Order Prescriptions Online

1. Find the Right Product

Make sure it matches your pets prescription. Donโ€™t forget to compare the dosage for pills/capsules!

2. Add to Cart

Just like any other online store. Make sure the quantity matches whatโ€™s been prescribed by your vetinarian.

3. Tell Us About Your Pet and Vet

Answer some questions during checkout and weโ€™ll contact your vet and verify the prescription for you. You can also mail us the written prescription.

4. Thatโ€™s It!

If the prescription has any refills, processing your future orders for that medication can be expedited.

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