MEDVi vs TrimRx vs PlexusDx (2026): Real Cash-Pay GLP-1 Pricing Compared

Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

This article is part of the PlexusDx Education Hub — your resource for evidence-based guidance on GLP-1 therapies, weight management protocols, and the genetic variables that shape every metabolic decision. Browse all Peptides & GLP-1 education

If you’re cross-shopping MEDVi and TrimRx for compounded GLP-1 weight loss, the published prices on each landing page are only part of the picture. MEDVi leads with $299/month ongoing on compounded semaglutide injection and $399/month on tirzepatide injection; it also offers a dissolvable GLP-1 tablet, with the price shown after intake. TrimRx advertises $199/month for semaglutide and $349/month for tirzepatide; when we completed its signup in July 2026, the checkout billed $299/month and $399/month ongoing, with lower effective rates only on multi-month plans paid upfront — semaglutide at $748 for 3 months, $1,268 for 6, or $2,218 for 12, and tirzepatide on the same structure ($1,068, $1,918, and $3,518). Both are cash-pay, both dispense compounded GLP-1s, and both ask you to either pay a higher month-to-month rate or lock in for a year. This article walks the actual cost math, the medication-source question, the safety considerations on each side, and where PlexusDx Semaglutide Injection, Tirzepatide Injection, and the Microdose GLP-1 Protocol sit relative to both — because the choice between MEDVi, TrimRx, and PlexusDx isn’t about which provider has the loudest landing page. It’s about month-to-month flexibility, total annualized cost, formulation breadth, and whether genetics inform your dose before week one.

Full head-to-head: PlexusDx vs TrimRx →

Full head-to-head: PlexusDx vs MEDVi →

MEDVi vs TrimRx vs PlexusDx — quick decision frame

Three pricing models cover this slice of the cash-pay GLP-1 market. MEDVi is a month-to-month compounded platform: $299/month ongoing on semaglutide injection, $399/month tirzepatide injection, plus a dissolvable GLP-1 tablet priced after intake, with provider consults, medication, and shipping bundled. TrimRx advertises $199/month for semaglutide; when we completed its signup in July 2026, the checkout billed $299/month month-to-month, with multi-month plans sold as one total: $748 for 3 months, $1,268 for 6 months, and $2,218 for 12 months. Tirzepatide is advertised at $349/month and was billed at $399/month month-to-month, with multi-month totals of $1,068 for 3 months, $1,918 for 6 months, and $3,518 for 12 months. PlexusDx Weight Management Protocols use compounded semaglutide and tirzepatide from licensed 503A compounding pharmacies — Microdose GLP-1 Protocol at $129/mo flat, Semaglutide Injection at $189/mo, Semaglutide Oral $289/mo month-to-month, or from $249/mo on the 6-month plan, Tirzepatide Injection at $289/mo, Tirzepatide Oral at $349/mo, and GLP-Squared dual-compound at $289/mo — with no membership, no multi-month upfront commitment, and the optional Precision Peptide Genetic Test ($298) that gives the prescribing clinician pathway-level context from the patient’s GIPR, FTO, MC4R, and TCF7L2 variants — context for the titration conversation, not a predictor of response to any specific medication.

The real annual cost: MEDVi vs TrimRx vs PlexusDx

For a cash-pay patient on semaglutide injection, the year-one math runs like this. MEDVi’s ongoing rate totals roughly $3,588/year ($299 × 12). TrimRx’s checkout-billed month-to-month rate ($299/mo, verified July 2026) runs $3,588/year; separately, its prepaid plans are charged as one upfront total — $1,268 for the 6-month semaglutide plan and $2,218 for the 12-month — with the entire amount due at signup. PlexusDx Semaglutide Injection runs $2,268/year ($189/mo) billed monthly with no upfront commitment, while the Microdose GLP-1 Protocol stays at $1,548/year ($129/mo flat) for patients who want a starter-dose oral or sublingual delivery. On tirzepatide, MEDVi runs ~$4,788/year (~$399/mo), TrimRx ranges from $3,518 for the year (12-month plan, charged upfront) to $4,788/year (billed month-to-month at $399), and PlexusDx Tirzepatide Injection runs $3,468/year ($289/mo) billed monthly. Add the Precision Peptide Genetic Test ($298) and PlexusDx still comes in below MEDVi at the entry tier and below TrimRx at every plan length both programs sell — without locking up a year of cash. TrimRx’s 12-month prepaid plan is a real advantage PlexusDx does not offer, since PlexusDx does not sell a 12-month term at all.

Compounded vs branded — what each platform actually dispenses

All three platforms dispense compounded semaglutide and tirzepatide — formulations prepared by licensed 503A compounding pharmacies under U.S. compounding regulations. Compounded semaglutide and tirzepatide are not FDA-approved finished drug products; they are pharmacy-prepared versions of the same active ingredients found in Wegovy, Ozempic, Mounjaro, and Zepbound. None of MEDVi, TrimRx, or PlexusDx dispenses the FDA-approved branded products directly. MEDVi states it works with multiple licensed U.S. compounding pharmacies. TrimRx does not publicly name its compounding pharmacy partners, which several BBB and Trustpilot reviewers cite as a friction point. PlexusDx uses licensed 503A compounding pharmacies and provides four delivery formats — weekly injection, daily oral tablet, microdose troche/capsule/lozenge/sublingual, and dual-compound stacks via GLP-Squared — so a patient who can’t tolerate weekly injections has more than one re-titration path inside the same provider relationship.

Safety, side effects, and clinical oversight

All three programs prescribe medications in the GLP-1 receptor agonist class, plus tirzepatide which is a GIP/GLP-1 dual agonist. The labeled side-effect profile is well-characterized: nausea, vomiting, diarrhea, constipation, abdominal pain, and headache are common; pancreatitis, gallbladder disease, and acute kidney injury are less common but documented. The boxed warning for thyroid C-cell tumors applies to both semaglutide and tirzepatide based on rodent studies, which means a personal or family history of medullary thyroid carcinoma or MEN 2 is a contraindication on every platform in this comparison. The clinical-oversight question is where the three differ most. MEDVi routes through the OpenLoop Health licensed-provider network with 24/7 messaging and is LegitScript-certified. TrimRx routes through licensed telehealth providers but is not LegitScript-certified and does not publicly name its provider network or pharmacy partners. PlexusDx uses licensed U.S. providers and licensed 503A compounding pharmacies and adds a stratification step: clinical review of the patient’s genetic test before titration when the test is included in the protocol pathway. Neither of the other programs compared here includes a DNA-based test.

Why genetics matter before you choose a GLP-1 provider

GLP-1 response varies meaningfully across patients. Variants in GIPR (the GIP receptor that tirzepatide engages alongside GLP-1) (the GLP-1 receptor itself), FTO (appetite regulation), MC4R (satiety signaling), and TCF7L2 (insulin response) are associated with measurably different response patterns to semaglutide and tirzepatide. The Precision Peptide Genetic Test maps 49 unique genes and 58 genetic variants across 14 health pathways — including 34 weight-management insights and the GIPR rs1800437 variant linked to differential GLP-1 response — so the prescribing clinician has patient-specific pathway context before week one. These are pathway-level associations, not predictions: the test does not predict your response to a specific medication and does not determine which one you should take — the provider decides. Neither of the other programs compared here includes a DNA-based test as part of intake; both start from a population-average titration schedule and adjust based on subjective tolerability over the first 8–12 weeks. PlexusDx anchors the same conversation to a measurable genetic baseline ($298).

Cancellation, refunds, and the fine print

This is where MEDVi and TrimRx diverge sharply, and where the multi-month-upfront model deserves a careful read. MEDVi’s published policy states no refund is issued once a billing cycle has been charged; to avoid the next charge you must cancel at least 72 hours before your billing date, and standard cancellations don’t entitle you to a refund for the current period. TrimRx’s month-to-month plan can be cancelled before the next billing cycle, but the 6-month and 12-month plans are billed upfront — reviewers on Trustpilot and BBB have flagged friction around prorated refunds and partial cancellations on those upfront plans. PlexusDx is cash-pay, no membership, billed monthly; there is no upfront 6- or 12-month commitment to unwind, and patients can pause or switch protocols (Microdose, Semaglutide Injection, Tirzepatide Injection, GLP-Squared) without losing pre-paid months. PlexusDx does not accept insurance and does not run as a membership — the published per-protocol price is what the patient pays, and the genetic test is a one-time cost rather than a recurring subscription.

Formulation breadth — injection, oral, microdose, dual-compound

If a patient can’t tolerate weekly injections, struggles with high-dose nausea, or wants a non-injection starter, the three platforms offer different exits. MEDVi offers semaglutide injection or semaglutide tablets, tirzepatide injection or tirzepatide tablets — four SKUs across two molecules. TrimRx offered semaglutide injection and tirzepatide injection only as of our July 2026 checkout capture; tablet and microdose paths are not advertised on the standard plans. PlexusDx offers six distinct protocols across four mechanism classes: Microdose GLP-1 Protocol (capsule, troche, lozenge, sublingual variants at $129/mo flat), Semaglutide Oral (3mg–24mg daily across six dose levels $289/mo month-to-month, or from $249/mo on the 6-month plan), Semaglutide Injection (0.25mg–2.0mg weekly across five dose levels at $189/mo), Tirzepatide Injection (2.5mg–15mg weekly across six dose levels at $289/mo), Tirzepatide Oral (5mg–25mg daily across seven dose levels at $349/mo), and GLP-Squared (compounded semaglutide + tirzepatide dual-compound across six provider-titrated dose pairs at $289/mo). The breadth matters because most patients who fail one delivery format don’t fail every format — switching from weekly injection to daily oral or to microdose is a re-titration conversation, not a provider switch.

Which one fits — a five-question decision frame

Question 1: Is your insurance going to cover Wegovy or Zepbound at a low copay? If yes, branded FDA-approved medication through your insurance plan is almost always cheaper than any cash-pay compounded route. Question 2: Are you cash-pay, with no GLP-1 coverage, and price is the dominant factor on a per-month basis? Compare TrimRx’s 12-month upfront totals ($2,218 semaglutide, $3,518 tirzepatide, as billed at checkout in July 2026) against PlexusDx Semaglutide Injection ($189/mo billing) and the Microdose GLP-1 Protocol at $129/mo flat. Question 3: Do you want month-to-month flexibility without paying a year upfront? PlexusDx and MEDVi both bill monthly; TrimRx’s month-to-month rate as billed at checkout ($299/mo semaglutide) is its own most expensive way to buy. Question 4: Are you 65 or older? MEDVi’s month-to-month pricing in this comparison is $299/month for semaglutide injection and $399/month for tirzepatide injection. Question 5: Do you want a genetic baseline informing dose and titration before the first injection? PlexusDx is the only option in this comparison that includes the Precision Peptide Genetic Test as part of the protocol pathway.

Frequently Asked Questions

Is MEDVi legit and how does it compare to PlexusDx on credibility?

MEDVi is LegitScript-certified, has roughly 14,095 Trustpilot reviews at 4.4/5 (read at source, July 2026), and uses the OpenLoop Health provider network. PlexusDx uses licensed U.S. providers and licensed 503A compounding pharmacies, is cash-pay with no membership, and adds an optional genetic-baseline step (Precision Peptide Genetic Test). Both are legitimate cash-pay compounded GLP-1 platforms; they differ on whether the titration conversation starts from population averages alone or with your own pathway-level genetic context added.

Is TrimRx legit and is the 12-month upfront plan worth it?

TrimRx is an operating telehealth provider with roughly 635 Trustpilot reviews at ~3.4/5 and is not LegitScript-certified. The 12-month upfront plan for semaglutide (as billed at checkout in July 2026) requires $2,218 due at signup and is charged as a single total, so review TrimRx’s refund terms before committing. PlexusDx Semaglutide Injection at $189/mo is billed monthly without an upfront commitment, which is a meaningfully different financial risk profile.

Are compounded GLP-1 medications safe?

Compounded semaglutide and tirzepatide are prepared by licensed 503A compounding pharmacies and are not FDA-approved finished drug products. The active ingredients are the same molecules found in Wegovy, Ozempic, Mounjaro, and Zepbound, but the regulatory framework is different. The boxed warning for thyroid C-cell tumors applies to both semaglutide and tirzepatide based on rodent studies. Use a licensed provider, confirm the pharmacy is a licensed 503A compounding pharmacy, and discuss any decision with a clinician.

Does either MEDVi or TrimRx accept insurance?

No. Both are cash-pay only, and so is PlexusDx. If your plan covers Wegovy, Ozempic, or Zepbound, the FDA-approved branded medication through your insurance is almost always cheaper than any cash-pay compounded option. Check your formulary first.

What is the cheapest way to start a GLP-1 in 2026 if I have no insurance coverage?

If insurance is not in play, the lowest entry points in this comparison are PlexusDx Microdose GLP-1 Protocol at $129/mo flat (oral or sublingual delivery), MEDVi's $299/mo month-to-month rate on semaglutide injection, and TrimRx's 12-month upfront plan (charged as $2,218 at signup, per our July 2026 checkout capture). The right choice depends on whether you want flexibility or a genetic-informed dose — not just the per-month number.

What about side effects and stopping the medication?

Common side effects across all three providers are nausea, vomiting, diarrhea, constipation, abdominal pain, and headache — the labeled GLP-1 profile. Pancreatitis, gallbladder disease, and acute kidney injury are less common but documented. Don’t stop GLP-1 medication abruptly without a plan; the gap can cause rebound appetite, and any new provider will likely restart you at a lower dose. Discuss any stop, switch, or dose change with the prescribing clinician.

Can I switch from MEDVi or TrimRx to PlexusDx mid-treatment?

Yes. There are no exclusivity agreements between cash-pay GLP-1 providers. Tell the new provider what medication, dose, and titration step you were on so they can manage the transition appropriately. PlexusDx adds a genetic test pathway via the Precision Peptide Genetic Test ($298) that gives your provider pathway-level context for that conversation; it does not predict your response to a specific medication or determine which one you should take — the provider decides between options such as semaglutide, tirzepatide, or the dual-compound GLP-Squared protocol.

Related reading on PlexusDx

Related reading on PlexusDx: GLP-1 Cost, Semaglutide Cost, Tirzepatide Costs, Cheapest GLP-1.

Disclaimer: This article is educational and is not medical advice. PlexusDx offers semaglutide and tirzepatide through its Weight Management Protocols. MEDVi pricing reflects rates captured in July 2026; TrimRx pricing reflects its advertised rates and the rates billed at checkout when we completed its signup in July 2026. Actual costs may vary by state, plan, and individual eligibility. PlexusDx does not sell, prescribe, or recommend any therapeutic peptide outside the GLP-1 category covered by its protocols. Discuss any GLP-1 medication decision with a licensed clinician.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.