Paying cash vs using insurance
How much does levothyroxine cost?
Synthroid / Levoxyl · thyroid replacement — strength in micrograms, not milligrams. Example fill: 90 × levothyroxine 50 mcg tablet.
Levothyroxine is generic Synthroid (and Levoxyl). It is a daily tablet measured in micrograms. 50 mcg is a common strength; 25, 75, 88, 100 mcg and many others are not “close enough.” Searchers want two things: why the copay is high, and whether they can switch to a cheaper bottle. The first is often yes (cash can beat a $40-plus copay). The second is not a pricing decision — thyroid hormone is a narrow-range drug. Stay on the prescribed strength and, unless the prescriber agrees, the same manufacturer.
The tablets themselves are cheap for pharmacies to buy. A 90-day cash fill of 50 mcg is usually a small amount. Insurance on an open deductible can still charge a typical generic copay that is many times that. Ask for cash on the same product you already take. If the cheap quote is a different maker, call the prescriber before you switch.
If your dose is still changing, 30-day local fills may be the right cadence even when 90-day cash looks better. That is clinical, not a coupon trick. Do not skip tablets to save two dollars.
More: cash vs copay, NADAC, RxCompare.app.
Estimated cash for 90 tablets or capsules
If your copay is $47, paying about $7.20 cash instead would save about $39.80 on this 90-day fill — if the register matches. These are estimates from public pharmacy acquisition cost (CMS NADAC as of 2026-09-02), not a coupon and not a guaranteed price. The coupon column is an estimate for chain cash only.
| Where you might fill | Est. cash | Est. chain coupon |
|---|---|---|
| Cost Plus · often cheapest | $7.20 | — |
| Costco | $9.94 | — |
| Amazon Pharmacy | $10.12 | — |
| Stop & Shop | $11.67 | — |
| Walmart | $15.21 | $13.38 |
| CVS | $20.77 | $18.28 |
| Walgreens | $21.14 | $18.60 |
Other strengths of levothyroxine
Price the strength on your bottle. These are different products.
- levothyroxine 100 mcg tablet
- levothyroxine 112 mcg tablet
- levothyroxine 125 mcg tablet
- levothyroxine 137 mcg tablet
- levothyroxine 150 mcg tablet
- levothyroxine 175 mcg tablet
- levothyroxine 200 mcg tablet
- levothyroxine 25 mcg tablet
FAQ
Can I switch levothyroxine brands to get a lower cash price?
Ask the prescriber first. Manufacturer changes can affect labs. Price the product you are meant to take.
Is 100 mcg much more expensive than 50 mcg?
Both are low-cost tablets. Still pay for the mcg on the prescription. Do not double 50 mcg tablets unless that is what was written.