Medical weight loss is clinician-led obesity treatment that can include prescription anti-obesity drugs, monitoring and lifestyle support.
St. Louis by the numbers
St. Louis city is its own county-equivalent, separate from St. Louis County. CDC PLACES estimates adult obesity at 36.8% and diagnosed diabetes at 13.2% in the city for 2023 [1], nearly matching the county-equivalent figures of 37.0% and 13.3% [6]. The city had 278,144 residents in mid-2025 and a median household income of $56,160 [5].
Income matters here because twelve months of the Wegovy pen at $349 adds up to $4,188 [4], roughly 7.5% of the city's median household income. Check the Medicaid and Medicare routes before paying that.
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Missouri Medicaid coverage
Stateline's April 30, 2026 report, citing KFF, names Missouri among the states whose Medicaid programs cover GLP-1s for obesity [2]. KFF counted 13 such states in January 2026 [7]. We did not confirm MO HealthNet's own criteria, such as BMI cutoffs or prior authorization, so ask your prescriber or MO HealthNet plan before starting. Stateline also reported that several states were considering dropping this coverage [2].
Tirzepatide in St. Louis
A lot of St. Louis searches name tirzepatide. Its weight-loss brand, Zepbound, is approved for chronic weight management and for obstructive sleep apnea with obesity [8]. Through LillyDirect a month is $299 at 2.5 mg and $399 at 5 mg, and $449 from 7.5 to 15 mg if refills stay on time; delivery and Walmart Pharmacy pickup are free [3]. SURMOUNT-5 compared it head to head with semaglutide: 20.2% average loss at 72 weeks versus 13.7% [9]. Background: tirzepatide guide, Wegovy vs Zepbound.
| Route | Monthly cost | Fine print |
|---|---|---|
| Zepbound from LillyDirect | $299 to $449 [3] | Late refills move higher doses to a regular price |
| Wegovy pen, first two fills for new buyers | $199 [4] | 0.25 and 0.5 mg only; offer ends Dec 31, 2026 |
| Wegovy pen from NovoCare | $349 [4] | Any strength from 0.25 to 2.4 mg |
| Wegovy tablets from NovoCare | $149 to $299 [4] | $149 at 1.5 mg, $199 at 4 mg, $299 at 9 or 25 mg |
| Medicare GLP-1 Bridge, qualifying Part D members | $50 [10] [15] | Wegovy, Foundayo and the Zepbound KwikPen |
Getting care locally
One local health system is BJC HealthCare. We could not confirm a public price list for a BJC weight program, so call its primary care or endocrinology offices to ask about referrals. Missouri physicians are licensed by the Missouri Board of Registration for the Healing Arts [11]. For semaglutide specifics, see semaglutide in St. Louis. Online options are compared on best online GLP-1 programs.
Any St. Louis offer of compounded semaglutide or tirzepatide deserves a hard look: these products have no FDA approval, and FDA does not check them for safety, effectiveness or quality [12]. Search the seller on our FDA warning letter tracker. Other Midwest guides: Kansas City, Indianapolis, Chicago and Nashville, and down the Mississippi, New Orleans.
Warnings to know
Minnesota residents can compare the same national prices against local rules in our Minneapolis weight loss page.
What the labels flag
Rodent studies put a thyroid C-cell tumor warning in a box on these labels, and anyone with MEN 2 or a personal or family history of medullary thyroid carcinoma should not use them. Stomach pain that is severe and keeps going may be pancreatitis. People with diabetes who also use insulin or a sulfonylurea are more prone to low blood sugar [13] [14]. Zepbound is stopped once a pregnancy is recognized [13]. A severe allergic reaction is a 911 call.
Questions people ask
Can MO HealthNet members in St. Louis get Wegovy or Zepbound for weight?
Possibly. Stateline, citing KFF, listed Missouri on April 30, 2026 among states whose Medicaid programs paid for GLP-1s for obesity [2]. We did not confirm MO HealthNet's BMI or prior authorization rules, so ask your plan.
Why does St. Louis report city and county health numbers separately?
What would a year of Wegovy cost a St. Louis household?
Which board licenses St. Louis physicians?
The Missouri Board of Registration for the Healing Arts [11].
Is BJC HealthCare a place to ask about weight loss medicine?
BJC HealthCare is a St. Louis health system, but we found no public price list for a BJC weight program; ask its primary care or endocrinology offices about referrals.
How many people live in the city of St. Louis?
278,144 in the mid-2025 Census estimate [5].
Sources
15 cited
- PLACES place data: St. Louis, MO. CDC PLACES (2025 release, BRFSS 2023), 2023 data, 2025 release.
- More states consider dropping GLP-1 weight loss drugs from Medicaid. Stateline (States Newsroom), Apr 30, 2026.
- Zepbound self-pay pricing. Eli Lilly and Company (LillyDirect), accessed 2026-10-17.
- Wegovy self-pay offer. Novo Nordisk (NovoCare Pharmacy), accessed 2026-10-17.
- QuickFacts: St. Louis city, Missouri. U.S. Census Bureau, QuickFacts, V2025; ACS 2020-2024.
- PLACES county data: St. Louis city, MO (FIPS 29510). CDC PLACES (2025 release, BRFSS 2023), 2023 data, 2025 release.
- Medicaid Coverage of and Spending on GLP-1s. KFF, Jan 16, 2026.
- Zepbound label. DailyMed, NLM, Aug 2026.
- Tirzepatide as compared with semaglutide for the treatment of obesity (SURMOUNT-5). New England Journal of Medicine (PubMed), May 11, 2025.
- Weight loss drugs coverage. Medicare.gov (CMS), accessed 2026-10-17.
- Missouri Board of Registration for the Healing Arts. Missouri Division of Professional Registration, accessed 2026-10-17.
- FDA's concerns with unapproved GLP-1 drugs used for weight loss. US Food and Drug Administration, Oct 1, 2026.
- Zepbound prescribing information. US FDA (accessdata.fda.gov), Apr 2026.
- Wegovy label. DailyMed, NLM, Jun 2026.
- Medicare GLP-1 Bridge: information for pharmacies. Centers for Medicare & Medicaid Services, accessed 2026-10-17.
This page is general information, not medical advice. Talk with a licensed clinician about your own care.