What is compounded Semaglutide — and what is compounded Tirzepatide?

A compounded medication is one that a licensed pharmacy prepares — combining, reconstituting, or adjusting the active ingredient into the exact strength and form a prescriber asks for — rather than a mass-manufactured, brand-name product that comes off a pharmaceutical company's line in fixed doses.

For our GLP-1 programs, that means each vial is prepared by a licensed U.S. compounding pharmacy, tested for identity and purity, and dispensed with a prescription from the MD at our clinic. You receive the same active medication studied in the major weight loss trials, in a strength and format your provider can titrate to fit you — often at a significantly lower monthly cost than the brand-name alternatives.

Semaglutide is a long-acting analogue of GLP-1 (glucagon-like peptide-1) — a hormone your gut naturally releases after you eat. Regular GLP-1 breaks down within minutes; semaglutide is engineered to resist that breakdown, so a single weekly dose keeps GLP-1 signalling elevated across all seven days.

It works by binding GLP-1 receptors in the pancreas and in the appetite centres of the hypothalamus and brainstem. In published studies, that produces three effects that matter for weight loss: increased glucose-dependent insulin release, slower gastric emptying, and reduced hunger and food-reward signalling. Practically speaking, patients feel full sooner, stay full longer, and think about food less.

In the STEP-1 clinical trial, once-weekly semaglutide produced a mean body-weight reduction of approximately 15% over 68 weeks, alongside improvements in fasting glucose and HbA1c. The most commonly reported side effects are nausea, reflux, and constipation — which is why dosing starts low and increases gradually under provider direction.

Compounded semaglutide is the same molecule studied in those trials. At Lumivive Wellness it is supplied as a multi-dose vial with bacteriostatic water and syringes, and your reference titration schedule — starting at 0.25 mg weekly and stepping up — is included and reviewed by our physician.

Tirzepatide is a newer medication that activates two hormone receptors at once: GLP-1 and GIP (glucose-dependent insulinotropic polypeptide). It is the first of this dual class, sometimes called a "twincretin."

The GLP-1 half works the way semaglutide does — curbing appetite and slowing gastric emptying. The GIP half adds a second signal that the literature associates with improved insulin sensitivity and altered fat-tissue handling of nutrients. The combined effect is why tirzepatide has posted the largest average weight reductions of any medication in its class.

In the SURMOUNT-1 clinical trial, once-weekly tirzepatide produced a mean body-weight reduction of approximately 20.9% over 72 weeks, and head-to-head data has shown greater average reduction than semaglutide. The most commonly reported side effects are nausea, diarrhoea, and appetite loss.

Compounded tirzepatide is the same dual-action molecule. At Lumivive Wellness it is supplied as a multi-dose vial with a reference schedule starting at 2.5 mg weekly and stepping up under your provider's direction.

You may recognize brand names attached to these molecules — Ozempic and Wegovy for semaglutide, Mounjaro and Zepbound for tirzepatide. Compounded versions contain the same active medication; the difference is who prepares it and at what price. Because a compounding pharmacy prepares the vial rather than a brand-name manufacturer, monthly costs are typically a fraction of brand-name pricing, without insurance prior authorizations or manufacturer supply shortages getting in the way.

The short version: semaglutide acts on one hormone receptor, tirzepatide acts on two. Here is how they compare side by side.

Want to see what a weekly dose looks like in units before your consultation? Our GLP-1 dose calculator converts mg to insulin-syringe units, and our BMI calculator is a common starting point for eligibility.

For both medications, the most commonly reported side effects are gastrointestinal: nausea, reflux, constipation, diarrhoea, and reduced appetite. They tend to appear right after a dose increase and often ease as your body adjusts — which is exactly why both medications start at a low dose and step up slowly.

Less common but more serious reactions are described in the prescribing literature, including pancreatitis and gallbladder problems, and neither medication is appropriate for everyone — personal or family history of medullary thyroid carcinoma, MEN 2, pregnancy, or breastfeeding are examples of situations where these medications are not used. Your full health history is reviewed by a provider before any prescription is written.

Compounded programs at Lumivive Wellness start at $125 introductory for semaglutide and $145 introductory for tirzepatide, with financing through Affirm and CareCredit and HSA/FSA accepted. See current GLP-1 pricing in Fort Myers or read about semaglutide and tirzepatide programs at our clinic.

On the published numbers, tirzepatide has shown the larger average weight reduction, while semaglutide has a longer track record and a long-established titration schedule. But "which medication" is the wrong first question — the right one is which plan, dosed correctly, fits your body and your life. That is a decision made with your provider after a consultation, based on your health history, tolerance, and goals. Dosing is always individualized and directed by your provider.