Thyro-Tabs (Levothyroxine Sodium) for Dogs, 0.6 mg

Daily Oral Thyroid Hormone Supplement for Canine Hypothyroidism

Product Description

Thyro-Tabs Canine (Levothyroxine Sodium Tablets, USP) 0.6 mg is an FDA-approved prescription once-daily oral thyroid hormone replacement for dogs, supplied as purple scored oval tablets in bottles of 120 or 1,000. Each tablet contains 0.6 mg levothyroxine sodium — a synthetic T4 that is chemically identical to what a healthy canine thyroid gland produces. Indicated for replacement therapy of diminished thyroid function in dogs, manufactured under the same FDA guidelines and in the same facilities as the human formulation.

Benefits

• Corrects Thyroid Deficiency: Restores deficient T4 hormone levels in dogs diagnosed with hypothyroidism through consistent once-daily or twice-daily oral supplementation.
• Normalizes Key Thyroid Markers: In a US field study, 75.6% of evaluable dogs achieved normalized TT4, fT4, and TSH concentrations by Day 182 of treatment.
• Improves Clinical Symptoms: Signs such as lethargy, weight gain, hair loss, skin thickening, and elevated cholesterol generally showed improvement throughout the field study.
• Once or Twice Daily Dosing: Can be given as a single daily oral dose every 24 hours or split into two equal doses every 12 hours, depending on veterinary direction.
• Scored for Precise Adjustment: The scored 0.6 mg purple oval tablet can be split, allowing the vet to fine-tune the dose in smaller increments during the titration phase.
• Nine Strengths Available: Thyro-Tabs Canine spans from 0.1 mg through 1.0 mg, giving prescribing vets the flexibility to find the exact right dose for each dog.

Ingredients

Active Ingredients

Levothyroxine Sodium (Anhydrous): 0.6 mg per tablet

How to Use

Dosage and Administration Instructions

• Prescription Required: Federal (USA) law restricts Thyro-Tabs Canine to use by or on the order of a licensed veterinarian only.
• Recommended Starting Dose: Administer 0.1 mg per 10 lbs (0.022 mg/kg) of body weight once every 24 hours, or divided into two equal doses every 12 hours.
• Blood Level Monitoring: Measure serum TT4 concentrations 4-6 hours after dosing alongside a clinical assessment every 4 to 8 weeks until a stable dose is confirmed.
• Maintain Consistent Food Timing: Give the tablet with food every day or without food every day; swapping this routine alters T4 absorption and creates unreliable monitoring results.
• Notify Vet Before Switching Products: If changing from a different levothyroxine brand, inform the vet before switching as bioavailability differences between products can affect T4 control.
• Do Not Stop Suddenly: Canine hypothyroidism requires lifelong management; never discontinue Thyro-Tabs without first discussing a tapering plan with the prescribing veterinarian.

Disclaimer: This dosage information is provided by the manufacturer. Always consult your veterinarian before administering or adjusting any supplement for your pet.

Additional Information

Precautions

• Thyrotoxicosis and Adrenal Insufficiency: Thyro-Tabs Canine is contraindicated in dogs with thyrotoxicosis or unresolved adrenal insufficiency before starting treatment.
• Cardiac Disease Patients: Close monitoring during the dose-establishment phase is required for any hypothyroid dog that also has a confirmed cardiac condition.
• Dose Adjustment with Heart Drugs: In dogs on cardiac medications, both the levothyroxine dose and the heart medication may need adjusting once thyroid replacement begins.
• Breeding, Pregnant, or Nursing Dogs: Safe use in breeding males, pregnant bitches, or lactating females has not been established; always get veterinary advice before use in these dogs.
• Medications That Affect Absorption: Antacids, calcium supplements, corticosteroids, and anticonvulsants may all interfere with levothyroxine uptake; share the full medication list with the vet.
• Keep Away from All Pets: Store in a location inaccessible to all household animals to prevent any accidental ingestion of the thyroid tablets.

Possible Side Effects

• Itching (Pruritus): Post-approval adverse drug experience data lists pruritus as the most commonly reported adverse reaction in dogs receiving Thyro-Tabs Canine.
• Abnormal Serum T4 Values: High or low T4 readings are among the most frequently submitted post-approval reports; routine bloodwork monitoring catches and corrects these issues early.
• Restlessness and Panting: Tachypnea, hyperactivity, and behavioral restlessness have been reported in post-approval experience; these may signal that the current dose is too high.
• Vomiting and Loose Stool: Digestive signs including vomiting and diarrhea have been reported in both field study results and post-approval adverse event submissions.
• Coat and Skin Reactions: Hair loss, dermatitis, seborrhea, and rare hypersensitivity reactions including urticaria and facial swelling have been documented in post-approval experience.

Storage Information

• Controlled Room Temperature: Store at 20-25°C (68-77°F); excursions between 15-30°C (59-86°F) are acceptable without affecting tablet potency or integrity.
• Protect from Light and Humidity: Keep the original bottle away from direct sunlight and moisture at all times to preserve levothyroxine sodium stability throughout the shelf life.

Shipping & Return

We offer ground, express, and priority delivery; see our shipping policy for details.

For return instructions or product concerns, please refer to our detailed refund policy.

Prescription items are NON-RETURNABLE and NON-REFUNDABLE.

Frequently Asked Questions

Q1: What does Thyro-Tabs Canine 0.6 mg purple tablet treat in dogs?

Ans: Thyro-Tabs Canine 0.6 mg is an FDA-approved prescription thyroid replacement tablet for dogs with hypothyroidism. It provides synthetic levothyroxine sodium that is identical to the T4 hormone a healthy dog's thyroid produces, restoring normal metabolic function when the gland cannot produce enough on its own.

Q2: How is the Thyro-Tabs 0.6 mg dose determined for my dog?

Ans: Treatment begins at 0.1 mg per 10 lbs of body weight daily. The vet then rechecks serum TT4 levels drawn 4-6 hours after the dose every 4-8 weeks and adjusts the strength accordingly. The 0.6 mg purple tablet is typically appropriate for larger medium or heavier dogs based on monitoring results.

Q3: Can Thyro-Tabs levothyroxine tablet be given at the same time as other dog medications?

Ans: Certain medications including antacids, calcium supplements, corticosteroids, and anticonvulsants may reduce levothyroxine absorption or alter its effectiveness. Always provide a complete list of current medications to the veterinarian before starting Thyro-Tabs so potential interactions can be identified and managed.

Q4: Will my dog need Thyro-Tabs hypothyroidism tablets for the rest of its life?

Ans: In most cases, yes. Canine hypothyroidism is typically a permanent condition requiring ongoing thyroid hormone supplementation. Stopping Thyro-Tabs without veterinary guidance usually causes clinical signs to return. Regular check-ups and blood monitoring ensure the dose stays appropriate throughout the dog's life.

Q5: What is the difference between the Thyro-Tabs 0.6 mg and 0.5 mg strengths for dogs?

Ans: Both strengths contain levothyroxine sodium and share the same indication and dosing schedule. The 0.6 mg purple tablet delivers a slightly higher daily T4 dose than the 0.5 mg white tablet. The prescribing vet chooses between them based on the dog's body weight and serum T4 monitoring results over time.

Clinical Research

https://www.msdvetmanual.com/endocrine-system/the-thyroid-gland/hypothyroidism-in-animals

https://www.petmd.com/dog/conditions/endocrine/c_dg_hypothyroidism

https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=38005382-289a-4293-b58e-b1cda8bc228