How to refill Levothyroxine online

What is levothyroxine? Levothyroxine (brands: Synthroid, Levoxyl) is a synthetic thyroid hormone used to treat hypothyroidism.

Running out of thyroid medication can make you feel awful within weeks. If your TSH is stable and you've been on the same dose, a 90-day bridge is safe and appropriate.

$45 flat
90-day bridge supply · Licensed provider · No insurance
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Generic
Levothyroxine
Brand
Synthroid, Levoxyl
Class
Thyroid hormone
Used for
hypothyroidism
Common doses
25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg
Monitoring
TSH within the last 12 months

When a Levothyroxine bridge refill is appropriate

When we'd decline and refer you instead

Clinical note. Narrow therapeutic index — brand consistency matters. If you're on Synthroid specifically, we'll specify that on the refill.

How the visit works

Pricing

$45 flat. Your Levothyroxine itself costs $4–30 at most pharmacies with a GoodRx coupon — separate from the visit fee and paid at the pharmacy.

Related medications

Same class or commonly paired with Levothyroxine:

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Clinically reviewed by our Chief Clinical Officer, an AANP board-certified Family Nurse Practitioner.
Last reviewed: April 15, 2026