Mounjaro Cost Breakdown: Every Dose, Every Source

Updated April 20, 2026

Mounjaro costs $1,070 per month at retail, regardless of dose. Nothing makes Mounjaro dramatically cheap. But TrumpRx has settled in as the only reliable self-pay path, offering $350/month flat at every dose from 2.5 mg through 15 mg. And if you have commercial insurance, Lilly's savings card can drop the price to as little as $25/month.

The landscape shifted in April 2026 when Eli Lilly quietly stopped offering Mounjaro through their LillyDirect Self-Pay Journey program. Mounjaro is no longer listed on LillyDirect's medicines page as of this update — only Foundayo and Zepbound remain for Lilly GLP-1s. If you've seen older guides pointing to LillyDirect for Mounjaro at $299/$399/$449 by dose, that information is now out of date.

Retail Price: $1,070 at Every Dose

Unlike Zepbound (which lists at $1,086) or Wegovy ($1,350), Mounjaro's retail sits at the lower end of the brand-name tirzepatide spectrum. The list price is the same whether you're on the 2.5 mg starter or the 15 mg maintenance dose. This is good news only if you've exhausted every other option — which most people shouldn't.

Option 1: TrumpRx — $350/month Flat at All Doses

TrumpRx is now the primary self-pay path for Mounjaro. The pricing is flat $350/month at every dose. Compared to Zepbound ($299 flat on TrumpRx), Mounjaro runs $51/month more — a reminder that the two medications, despite being the same active ingredient (tirzepatide), carry different brand-level pricing agreements.

If you're paying cash for Mounjaro specifically (say, because your doctor prescribed it for Type 2 diabetes and you want to stay on the diabetes-approved brand), TrumpRx is your default.

Option 2: Lilly Savings Card — $25/mo or up to $499 Off

The Mounjaro savings card has two tiers, both requiring commercial insurance:

• If your plan covers Mounjaro: Copay drops to $25/month, capped at $1,950/year in total savings.
• If your plan doesn't cover Mounjaro: You get up to $499 off per fill, capped at $8,411/year over 13 fills. That brings $1,070 retail down to about $571, which is worse than TrumpRx's $350.

The card expires December 31, 2026. About 82% of commercial plans cover Mounjaro for Type 2 diabetes, so most cardholders land in the $25/month track. For weight loss prescriptions (off-label), coverage rates are much lower.

Option 3: GoodRx — Not Competitive

GoodRx's Mounjaro coupon prices are roughly $1,097/month — effectively list price. GoodRx works well for Ozempic and Wegovy but has never brought Lilly's tirzepatide drugs down. Skip this option.

Mounjaro Price Comparison Table

No Patient Assistance Program

One important gap: Mounjaro is not on Lilly Cares' available medications list. Lilly Cares is Eli Lilly's patient assistance program for uninsured and low-income patients, and while Foundayo and Zepbound eventually get added, Mounjaro has been consistently excluded. If you're uninsured and can't afford $350/mo on TrumpRx, there is no free-drug program from Lilly for Mounjaro specifically.

Your alternative in that situation is to ask your doctor whether Zepbound would work instead. Zepbound is the same drug (tirzepatide) approved for a different indication (weight management), and Lilly Cares does cover Zepbound for qualifying patients.

Mounjaro vs Zepbound: Why the Price Difference?

Same active ingredient. Different FDA approvals, different pricing. Mounjaro is approved for Type 2 diabetes (and obstructive sleep apnea); Zepbound is approved for weight management (and sleep apnea). Eli Lilly keeps their pricing tiered by indication — diabetes meds tend to be priced higher at retail but get better insurance coverage, while weight-loss meds are priced lower at retail but face more insurance resistance.

The practical implication:

• If you need tirzepatide for diabetes: Mounjaro has better insurance leverage. Use the savings card if covered, TrumpRx if not.
• If you need tirzepatide for weight loss: Zepbound is cheaper self-pay ($299 vs. $350 TrumpRx).
• If you need it for sleep apnea: either is FDA-approved; compare your plan's formulary.

What If You're on Medicare?

Medicare Part D generally covers Mounjaro for Type 2 diabetes. Copays vary by plan, typically $30–$150/month. The savings card does not work with Medicare — federal law prohibits manufacturer copay assistance on federally-funded prescription drugs. If your Part D plan puts Mounjaro in a high tier, your real options are asking for a formulary exception or switching to TrumpRx as cash-pay.

Bottom Line

• Paying cash: TrumpRx at $350/mo flat, all doses. LillyDirect is no longer an option.
• Commercial insurance covers it: Lilly savings card, $25/mo. Non-negotiable best price.
• Commercial insurance doesn't cover it: Savings card's "up to $499 off" is worse than TrumpRx. Use TrumpRx.
• Medicare: Use your Part D benefit; savings card doesn't apply.
• Uninsured, can't afford $350: Ask about Zepbound as an alternative (has PAP access).