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What is the generic of Synthroid?

The generic of Synthroid is Levothyroxine. As of July 2026, the lowest verified cash price for Levothyroxine 100 mcg is $4.00 at BetterBuy Rx, based on 21 verified US pharmacy quotes — every price below is a real quote we verified, not an estimate.

BetterBuyRx card price: $10.00. We show home delivery too and always surface it first when it is cheaper.

Pharmacy / sourceTypeVerified cash price
BetterBuy Rxcoupon$4.00
Costco Pharmacypharmacy$4.50
Mark Cuban Cost Pluspharmacy$6.10
Honeybee Healthpharmacy$7.00
Mark Cuban Cost Pluspharmacy$7.21
BetterBuy Rxcoupon$8.00

Last verified Jul 21, 2026. Cash prices only, from verified public retail and mail-order sources — no insurance copays, no estimates, no extrapolation across strengths or quantities. Prices change; confirm at the pharmacy counter. See our methodology.

Common questions

What is the generic of Synthroid?
The generic of Synthroid is Levothyroxine. It contains the same active ingredient and is the version that drives the low cash prices below.
How much does generic Synthroid (Levothyroxine) cost without insurance?
The lowest verified cash price we currently have for Levothyroxine 100 mcg is $4.00 at BetterBuy Rx, from 21 verified US pharmacy quotes. Prices change; confirm at the pharmacy before you buy.
Is generic Levothyroxine as effective as Synthroid?
Generic Levothyroxine must meet the same FDA standards for active ingredient, strength, and quality as Synthroid. Ask your pharmacist if you have questions about switching.