Thyro-Tab Levothyroxine for Dogs Canada | Buy Online | PetMedsToYourHome

Thyro-Tab Levothyroxine for Dogs Canada – Hypothyroidism Treatment

If your dog has been diagnosed with hypothyroidism, Thyro-Tab (levothyroxine) is the standard of care — a synthetic thyroid hormone replacement that restores normal thyroid function and reverses the symptoms of an underactive thyroid. Available at PetMedsToYourHome.ca in 8 strengths with per-tablet pricing.

Prescription Required

Click here to submit your prescription — A valid veterinary prescription is required before we can ship this medication.

Shop Thyro-Tab — 8 Strengths Available

What Is Hypothyroidism in Dogs?

Hypothyroidism is one of the most common endocrine disorders in dogs, occurring when the thyroid gland fails to produce sufficient thyroid hormone. It affects metabolism, energy levels, skin and coat health, and overall wellbeing. Medium to large breeds are most commonly affected, and it is most often diagnosed in middle-aged dogs.

Signs of Hypothyroidism in Dogs

Weight gain without increased appetite
Lethargy and exercise intolerance
Hair loss, thinning coat, or failure to regrow hair
Dry, flaky, or thickened skin
Cold intolerance — seeking warm spots
Slow heart rate (bradycardia)
Recurring skin or ear infections

Available Strengths and Per-Tablet Pricing

0.1mg — $0.14 per tablet

0.2mg — $0.17 per tablet

0.3mg — $0.25 per tablet

0.4mg — $0.35 per tablet

0.5mg — $0.50 per tablet

0.6mg — $0.52 per tablet

0.7mg — $0.62 per tablet

0.8mg — $0.70 per tablet

A dispensing fee applies at checkout. Your veterinarian will prescribe the appropriate strength based on your dog's body weight and thyroid hormone levels (T4).

Order Thyro-Tab Online in Canada

How Thyro-Tab Works

Levothyroxine is a synthetic form of T4 (thyroxine), the primary hormone produced by the thyroid gland. Once absorbed, it is converted to T3 (triiodothyronine) in the body's tissues, restoring normal metabolic function. Given twice daily in most dogs, it replaces the hormone the thyroid gland can no longer produce adequately.

Frequently Asked Questions

Do I need a prescription for Thyro-Tab in Canada?

Yes — Thyro-Tab is a prescription medication in Canada. Upload your prescription here and we will process your order promptly.

How long before I see improvement?

Most dogs show improvement in energy and coat quality within 4 to 8 weeks of starting levothyroxine. Full benefit is typically seen after 3 months of consistent treatment. Regular T4 monitoring is recommended to ensure the dose is correct.

Is Thyro-Tab a lifelong medication?

Yes — hypothyroidism in dogs is a lifelong condition requiring daily medication. Dogs on Thyro-Tab typically need T4 blood tests every 6 to 12 months to ensure the dose remains appropriate as they age.

What happens if I miss a dose?

Give the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not double dose.