How much does Tremfya cost?

How we calculated these numbers

1. Dosing. The FDA label for plaque psoriasis: 100 mg at week 0, week 4, and every 8 weeks after. That’s 7 doses in year one (weeks 0, 4, 12, 20, 28, 36, 44), then 6 or 7 doses in any later 12-month stretch. One carton holds one dose.¹
2. Price. Tremfya’s list price is $14,566.44 per injection (tremfya.com, as of March 2025, still current in October 2026). Insurance and program costs are figured from that price, one dose at a time.²
3. Commercial insurance. We run every dose through your plan in order: the deductible first, then your copay or coinsurance, until you reach your out-of-pocket maximum. The table’s low end uses the average specialty-tier copay ($111) with no deductible; the high end uses the average coinsurance (27%) after the average single deductible ($1,886),⁷ capped at the 2026 federal out-of-pocket limit ($10,600).¹⁰ Averages are from the KFF 2025 Employer Health Benefits Survey; the calculator lets you enter your own plan.
4. TREMFYA withMe Savings. As little as $0 per dose after the program pays your plan’s share, until the program’s yearly maximum. Johnson & Johnson doesn’t publish that maximum, so we can’t finish this calculation and show a placeholder instead of a partial number.³
5. Medicare Part D. The 2026 standard benefit: a deductible of up to $615, then 25% coinsurance, with total out-of-pocket costs capped at $2,100.⁸ With Extra Help, each brand-name fill costs $12.65 or less.¹¹
6. Medicaid. $0 (many states) up to $8 per prescription, the federal limit for a non-preferred drug for enrollees with income at or below 150% of the poverty level, times the number of doses.⁹ Above that income, states can charge a percentage of the drug’s cost, and all Medicaid cost sharing is capped at 5% of household income.
7. J&J Patient Assistance. $0 for people the program approves.⁴
8. Out of pocket. Low end: Johnson & Johnson’s list price (wholesale acquisition cost), $14,566.44 per injection as of March 2025, which tremfya.com still shows. High end: the average U.S. retail (undiscounted) pharmacy price for one 100 mg injector or prefilled syringe, $19,508.45 (GoodRx, September 2026)⁶. We multiply each by the number of doses: 7 in year one, then 6 or 7 a year.²
9. Care costs in the calculator. Honeydew membership starts at $25/month with an annual plan, so we use $25 × 12.⁵ On a commercial plan, the With Honeydew estimate includes the TREMFYA withMe Savings Program, which we help you enroll in (its yearly maximum isn’t published, so the high end assumes it runs out); the Traditional estimate uses your plan alone. Traditional care uses four in-office dermatology visits a year (a first visit and quarterly follow-ups), priced the way your coverage pays for them: the average specialist copay ($45, KFF 2025);⁷ Medicare Part B’s 20% of the 2026 fee schedule ($177.36 new visit, $135.61 follow-up, national), with or without the $283 Part B deductible;^13,14 up to $4 on Medicaid (the limit at the lowest income level);⁹ or $100–$300 per visit without insurance (Honeydew’s figure for in-office dermatology).¹⁵ On commercial plans, visit copays count toward the same out-of-pocket maximum as the medication, so they stop once you reach it.