Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99
Product title
Vendor
$19.99 | $24.99
Entry-Level T4 Thyroid Replacement Tablet for Dogs and Cats
Product Description
Thyro-Tabs Canine (Levothyroxine Sodium Tablets, USP) 0.1 mg is an FDA-approved prescription thyroid hormone replacement for dogs, supplied as yellow scored oval tablets in bottles of 120 or 1,000. Each tablet delivers 0.1 mg levothyroxine sodium, the lowest and smallest dose in the nine-strength Thyro-Tabs Canine line. While FDA-approved for dogs only, it is a commonly accepted veterinary practice to use this product in cats as well, particularly for post-thyroidectomy T4 supplementation. The 0.1 mg strength makes it the go-to starting option for the tiniest dogs, kittens, and small cats requiring precise low-dose thyroid supplementation.
Benefits
- Lowest Available Starting Dose: At 0.1 mg, this is the entry-level tablet strength, giving vets the most conservative starting point for toy breeds, small dogs, and cats.
- Supports Feline Post-Surgical Use: Commonly used off-label in cats following surgical thyroid removal to replace T4 the gland can no longer produce.
- Restores Metabolic Balance: Supplements deficient circulating thyroid hormone levels, helping restore the metabolic activity that supports normal energy, weight, skin, and coat.
- Validated Clinical Results: A controlled US field study confirmed 75.6% of evaluable dogs achieved normalized TT4, fT4, and TSH concentrations by Day 182 of treatment.
- Signs of Hypothyroidism Improve: Weight gain, lethargy, hair thinning, skin thickening, hyperpigmentation, and elevated cholesterol showed improvement throughout the field study period.
- Scored for Precise Splitting: The yellow oval tablet is scored, allowing it to be split into a 0.05 mg half-dose when the vet needs an even lower starting point, particularly for cats.
Ingredients
Active Ingredients
Levothyroxine Sodium (Anhydrous): 0.1 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.
- Dog Starting Dose: Begin at 0.1 mg per 10 lbs (0.022 mg/kg) once every 24 hours, or divided equally into two doses every 12 hours as directed by the vet.
- Cat Off-Label Dose: The typical feline dose is 0.05 mg to 0.1 mg per cat once daily; the exact amount is set by the veterinarian based on the individual cat's needs and bloodwork.
- Off-Label Cat Use Disclosure: Thyro-Tabs Canine is FDA-approved for dogs only; use in cats is a commonly accepted off-label veterinary practice and must be directed by a licensed vet.
- Post-Dose Monitoring Window: Collect blood for serum TT4 measurement 4 to 6 hours after the tablet to capture peak absorption levels for the most accurate dose assessment.
- Recheck Bloodwork Every 4-8 Weeks: Reassess serum TT4 and clinical signs at 4 to 8 week intervals until the maintenance dose is confirmed as stable for the individual pet.
- Same Food Routine Every Day: Give consistently with food or consistently without; changing this daily will cause unpredictable T4 absorption that undermines reliable dose management.
- Tell the Vet About All Medications: Many drugs including vitamins, minerals, herbal supplements, and other prescriptions can interact with levothyroxine; a complete medication list is essential.
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
- FDA-Approved for Dogs Only: The 0.1 mg Thyro-Tabs Canine tablet holds FDA approval for dogs; use in cats is an accepted off-label practice and requires specific veterinary direction.
- Thyrotoxicosis Contraindicated: Never give to any dog or cat already showing signs of excess thyroid hormone or where thyrotoxicosis has been confirmed by bloodwork.
- Caution in Hypertension: Administer with caution to animals with primary hypertension; levothyroxine raises metabolic activity, which can exacerbate elevated blood pressure conditions.
- Euthyroid Animals: Use with caution in animals confirmed to have normal thyroid function (euthyroidism); supplementing a working thyroid can push hormone levels into the toxic range.
- Cardiac Disease Monitoring: Both dogs and cats with underlying heart disease require particularly close veterinary monitoring throughout the entire dose-establishment phase of therapy.
- Breeding, Pregnant, and Nursing Dogs: The safety of Thyro-Tabs Canine has not been evaluated in breeding, pregnant, or lactating dogs; seek veterinary guidance before use.
- Keep Locked Away from All Pets: Store in a secure location away from dogs, cats, and other animals to prevent any accidental ingestion or overdose of the tablet.
Possible Side Effects
- Pruritus Most Frequently Reported: Post-approval adverse drug experience data lists itching as the leading adverse reaction reported in dogs on Thyro-Tabs Canine across all strengths.
- Abnormal Serum T4 Readings: Both above-range and below-range TT4 concentrations are commonly submitted post-approval adverse events; regular blood monitoring is the primary safeguard.
- Rapid Breathing and Hyperactivity: Tachypnea and restlessness are listed in post-approval adverse event data in decreasing frequency after pruritus and T4 imbalances.
- Digestive Upsets: Anorexia, vomiting, and diarrhea have been reported through post-approval adverse event submissions for dogs receiving levothyroxine supplementation.
- Liver Enzyme Elevations: Three field study dogs developed raised ALP, ALT, or AST; values in most dogs normalized over time without any change to treatment.
- Allergic Hypersensitivity Reactions: Hives, facial swelling, rash, and dermatitis have been reported in post-approval experience; seek emergency veterinary care if these develop.
Storage Information
- Store at Room Temperature: Keep at 20-25°C (68-77°F); brief excursions between 15-30°C (59-86°F) are acceptable without compromising tablet potency or stability.
- Protect from Light and Moisture: Keep the original bottle tightly sealed and away from direct sunlight, humidity, and heat sources 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 is Thyro-Tabs 0.1 mg used for in dogs and cats?
Ans: Thyro-Tabs Canine 0.1 mg is FDA-approved for dogs to replace deficient thyroid hormone in hypothyroidism. In cats, it is commonly used off-label — especially following surgical thyroid removal — to restore T4 levels the gland can no longer produce on its own, under direct veterinary supervision.
Q2: What is the correct Thyro-Tabs 0.1 mg dose for cats?
Ans: When used off-label in cats, the typical dose is 0.05 mg to 0.1 mg per cat once daily, as directed by the veterinarian. The scored tablet allows a clean split into 0.05 mg halves. The exact amount and schedule must always be set by the prescribing vet based on the individual cat's bloodwork and health status.
Q3: Why is the 0.1 mg yellow tablet the most appropriate Thyro-Tabs strength for cats?
Ans: Cats typically need far less daily levothyroxine than dogs, with most feline doses falling between 0.05 mg and 0.1 mg per cat rather than weight-based increments. The 0.1 mg tablet is the only strength low enough to deliver an accurate single feline dose, and can be split to 0.05 mg for cats needing even less.
Q4: Is Thyro-Tabs Canine 0.1 mg levothyroxine safe for cats with heart disease?
Ans: Thyro-Tabs must be used with caution in any cat or dog with underlying heart disease. Levothyroxine raises metabolic demands, which can add strain to a compromised heart. Close veterinary monitoring throughout the entire dose-establishment phase is essential for all cardiac patients starting thyroid hormone replacement.
Q5: What happens if a dog or cat accidentally ingests extra Thyro-Tabs 0.1 mg tablets?
Ans: Accidental ingestion of excess levothyroxine can cause signs of over-supplementation including rapid breathing, restlessness, vomiting, increased thirst, and collapse. Contact your veterinarian or an emergency animal clinic immediately if you suspect your pet has ingested more than the prescribed amount of this thyroid supplement.