The most common complaint we see from online GLP-1 buyers isn't that the medication didn't work — it's that the bill wasn't what they expected. Almost always, the cause is the same: a headline like "$39 first month" or "start for $79" that quietly becomes something much larger by the time you're at your maintenance dose. If you plan around the real monthly cost from the start, you avoid the surprise entirely.

Month 1: the teaser

Intro rates are real, but temporary. They come in a few flavours: a discounted first month, a low "starting dose" price, or a membership fee that looks like the whole cost until the medication is billed on top. Treat the first-month number as a trial price, not your budget. The question that matters is what month four looks like.

Month 4: the price you actually keep paying

GLP-1 doses are started low and raised over several weeks. By the time you reach a maintenance dose — usually around month three or four — you're paying the ongoing rate, which is frequently two to five times the intro. Across the programs we track in our comparison, real maintenance prices for compounded semaglutide and tirzepatide typically land in the low-to-mid hundreds per month; branded Wegovy or Zepbound without insurance runs higher still. Membership programs are the easiest to misread: a "$39" plan can become roughly $298/mo once the membership fee and the medication are both counted.

To find your month-four number, add three things: the medication cost at a maintenance dose, any membership or visit fee, and anything billed separately (labs, shipping). That total — not the first-month figure — is what you're really signing up for.

Year one: the number that decides value

Multiply your month-four cost by twelve, then add any prepaid bundle you paid up front. Year-one cost is where programs that looked cheap can lose to ones that were honest, because a low teaser attached to a plan that climbs with dose often overtakes a flat, all-in price. It's also where prepay matters: a six-month bundle lowers the monthly rate, but you're betting the provider ships reliably for all six months — so weigh the refund terms before you commit.

Where insurance and Medicare change the math

Insurance rarely covers compounded GLP-1s, so most compounded buyers pay cash. It sometimes covers branded Wegovy or Zepbound for weight loss, usually with prior authorization that's often denied — if it comes through, a maker savings card can bring the cost down sharply. If you're on Medicare, there are newer lower-cost routes to the original branded drugs worth checking on medicare.gov before you default to cash-pay compounded. Rules here change often, so confirm current coverage rather than trusting a year-old forum post.

The one habit that prevents bill shock

Before you sign up anywhere, write down the month-four price, not the month-one price. Our comparison chart leads with that real maintenance number for every program, with the intro rate shown underneath — so you're comparing like for like.

General information only, not medical advice, and not financial advice. Prices change monthly — always confirm the current figure with the provider before you buy. Whether a GLP-1 is right for you is a decision for you and a licensed clinician.

Popular head-to-head comparisons

Weighing two specific programs? These matchups break the decision down to a clear verdict: