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 visit
90-day bridge supply · Licensed clinician · No insurance billing
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Generic
Levothyroxine
RxCUI
10582
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

Cash-pay visit. Medication cost is separate and paid at the pharmacy. The exact medication price varies by pharmacy, quantity, insurance, and discount-card pricing.

Refill by category

If your medication is stable and non-controlled, these refill guides explain how online bridge refill visits work by medication type.

Related medications

Same class or commonly paired with Levothyroxine:

More refill resources

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Or learn about bridge refills
By Bidwell Cranage, APRN, FNP-C, AANP board-certified Family Nurse Practitioner · Clinically reviewed.
Last reviewed: April 15, 2026