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What to expect.

Tirzepatide results timeline: what to expect, month by month

Tirzepatide starts at 2.5 mg and steps up every 4 weeks or more, so the first months are about adjusting. In the 72-week SURMOUNT-1 trial of Zepbound, average weight loss was 15.0% to 20.9% depending on dose, and 9 in 10 people on 15 mg lost at least 5%. People who stopped after 36 weeks regained 14.0% over the next year. At NexLife, compounded tirzepatide is $169 a month at every dose, matched if you pay less^†.

Weeks 1–20: starting dose, then steps every 4+ weeks
Week 72: 15.0% to 20.9% average loss, by dose
Stopping: 14.0% regained over the next year, on average

Published by NexLifeLegitScript-certifiedUpdated October 13, 2026Medically reviewed by the NexLife clinical team, led by Adam Kennah, MD (NPI 1144260043)

Milestones from the trials

Weeks 1–4: 2.5 mg, the starting dose
Weeks 5–20: Stepping up, 2.5 mg every 4+ weeks
Weeks 21–72: Maintenance, at least 52 weeks in Study 1
Week 72: −15.0% to −20.9%, average by dose (Study 1)

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Compounded medicines aren’t FDA-approved. A NexLife provider prescribes one only if it offers a significant difference for you compared with an FDA-approved medicine.

The timeline

Month by month, from the first dose

From the Zepbound prescribing information. Your own pace depends on your dose, your body and your habits.

Weeks 1–4
Getting started. 2.5 mg a week, a starting dose that isn’t meant for the long term. It takes about 4 weeks for blood levels to settle on a dose. Stomach side effects are most likely while the dose is going up.
Weeks 5–20
Stepping up. The dose can rise by 2.5 mg after at least 4 weeks at each step. The earliest 15 mg can start is week 21. Your provider sets the pace; some people stay longer at a dose.
Weeks 21–72
At your maintenance dose. In Study 1, people spent at least 52 weeks on their maintenance dose (5, 10 or 15 mg) before results were measured at week 72.
Week 72
The trial endpoint. In Study 1, average loss was 15.0% on 5 mg, 19.5% on 10 mg and 20.9% on 15 mg, versus 3.1% on placebo.
If you stop
What Study 4 found. People who took it for 36 weeks and were then switched to placebo regained 14.0% of their weight over the next 52 weeks; those who kept taking it lost another 5.5%.

Milestones

How many people reached each milestone

Study 1 (SURMOUNT-1), week 72: share of people who lost at least…
Weight lost	Placebo	5 mg	10 mg	15 mg
5% or more	34.5%	85.1%	88.9%	90.9%
10% or more	18.8%	68.5%	78.1%	83.5%
15% or more	8.8%	48.0%	66.6%	70.6%
20% or more	3.1%	30.0%	50.1%	56.7%

Zepbound label, Table 2. These numbers come from trials of FDA-approved Zepbound. Compounded tirzepatide isn’t FDA-approved and wasn’t studied in them.

9 in 10on 15 mg lost at least 5%
More than halfon 15 mg lost at least 20%
3.1%average loss on placebo

Your number

Put the averages in pounds

Starting weight (lb)Maintenance dose

–Enter your starting weight in pounds.

Uses SURMOUNT-1 averages at 72 weeks for FDA-approved Zepbound (15.0% at 5 mg, 19.5% at 10 mg, 20.9% at 15 mg). Averages describe a group, not a person. Compounded tirzepatide wasn’t studied.

Use this to set expectations with your provider, not as a goal.

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What’s inside every plan

Tirzepatide: compounded, acts on two hormone pathways (GIP and GLP-1), taken once a week
Semaglutide: compounded, acts on the GLP-1 pathway, taken once a week
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Prescription required. Compounded medications are not FDA-approved, and a provider prescribes one only if it offers a significant difference for you compared with an FDA-approved medicine. On 12-month plans: $139 a month for tirzepatide, $119 for semaglutide, still the same at every dose. Prices checked October 7–13, 2026.

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NexLife month-to-month price, month by month
	Month one	Month two	Month three	Every month after
Tirzepatide	$169	$169	$169	$169
Semaglutide	$139	$139	$139	$139

Paying less somewhere else? Send us a receipt from another licensed U.S. telehealth provider and we’ll match your regular monthly price. See the terms

Month-to-month plan, all-inclusive. Longer plans cost less and stay flat. Tirzepatide is $159, $149 and $139 a month on 3-, 6- and 12-month plans. Semaglutide is $132, $125 and $119.

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Prices from each provider, checked October 7–13, 2026. Brand-name and compounded medications are different products; compounded medications are not FDA-approved. †Price Match Guarantee terms apply.

The NexLife Price Match Guarantee

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Already on compounded tirzepatide or semaglutide? Bring your price to NexLife. If you pay less with another licensed U.S. telehealth provider, we match your regular monthly price for as long as your plan stays active.^† You keep your price, and you gain a provider who follows your dose, a personal nutrition plan, a 1:1 coaching call and real people who answer 24/7.

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^†NexLife Price Match Guarantee: for new members switching from a licensed U.S. telehealth provider with an active prescription for compounded tirzepatide or semaglutide. Send a receipt from the last 60 days and we match your regular all-in monthly price on the month-to-month plan, for the same medication (medication plus required fees; not first-month offers, sale prices, coupons or prepaid multi-month rates), for as long as your plan stays active. A NexLife provider must determine that treatment is right for you. Not open to people with Medicare, Medicaid or TRICARE coverage. Full terms.

What changes the pace

Four things that shaped results in the trials

Your dose
Higher maintenance doses led to more weight loss on average: 15.0% on 5 mg vs 20.9% on 15 mg.
Type 2 diabetes
People with type 2 diabetes lost less on average: 12.8% on 10 mg and 14.7% on 15 mg in Study 2.
Staying on it
Stopping after 36 weeks led to regaining 14.0% over the next year in Study 4. Continuing led to more loss.
Your habits
Every trial group had diet and activity advice. Protein and strength training help protect muscle as weight comes off.

Stop or continue?

What happened after week 36

Study 4 (SURMOUNT-4): change in weight from week 36 to week 88
Group	Change
Kept taking tirzepatide	−5.5%
Switched to placebo	+14.0%

After 36 weeks on tirzepatide (20.9% lost on average), 670 people were randomly assigned to keep taking it or switch to placebo for 52 more weeks; people who stopped earlier weren’t included. Zepbound label, Table 6.

A price that holds while you do.

$169 a month at every dose, so staying on track doesn’t get more expensive as your dose rises.

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Results questions

How fast does tirzepatide work?

Blood levels settle after about 4 weeks on a dose, and doses step up every 4 weeks or more. In the trials, weight loss built over months; results were measured at 72 weeks.

How much weight can I lose on tirzepatide in a month?

The trials reported results at 36 and 72 weeks, not month by month. Averaged over 72 weeks, the 15 mg group’s 20.9% works out to about 0.3% of body weight a week; real loss isn’t that even.

What results can I expect after 3 months?

At 3 months you’re typically still stepping up the dose. The label reports results at 36 and 72 weeks; your provider can tell you what your progress means.

How many people lose 20% on tirzepatide?

In Study 1, 56.7% of people on 15 mg lost at least 20% of their weight by week 72, versus 3.1% on placebo.

What happens if I stop taking tirzepatide?

In Study 4, people switched to placebo after 36 weeks regained 14.0% of their weight over the next year on average, while people who continued lost another 5.5%.

Will compounded tirzepatide give the same results?

Compounded tirzepatide hasn’t been studied in clinical trials and isn’t FDA-approved. These results come from trials of Zepbound.

Important safety information

Compounded tirzepatide and semaglutide are not FDA-approved, and the FDA hasn’t reviewed them for safety, effectiveness or quality. A provider prescribes them only when they offer a significant difference for you compared with an FDA-approved product. Both medicines may cause thyroid tumors, including cancer: don’t use either if you or a family member has had medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN 2).

Read the full safety information

In studies with rodents, both medicines caused thyroid tumors; it isn’t known whether they cause them in people. Tell your provider if you notice a lump or swelling in your neck, hoarseness, trouble swallowing or shortness of breath.

Serious side effects can include inflammation of the pancreas (pancreatitis), gallbladder problems, low blood sugar (especially with insulin or sulfonylureas), kidney problems from dehydration, severe stomach problems, serious allergic reactions, vision changes in people with type 2 diabetes, and a faster heart rate. Tell your care team before any surgery or procedure that uses anesthesia or deep sedation. Don’t combine either medicine with other GLP-1 medicines.

Tirzepatide can make birth control pills less effective: switch to a non-oral method, or add a barrier method such as condoms, for 4 weeks after you start and for 4 weeks after each dose increase. Both medicines may harm an unborn baby. Semaglutide should be stopped at least 2 months before a planned pregnancy. Tell your provider right away if you’re pregnant, planning to be, or breastfeeding.

This is a summary, not the complete safety information. Read the full Prescribing Information for FDA-approved tirzepatide (Zepbound) and semaglutide (Wegovy), and talk with your provider. You can report side effects to the FDA at 1-800-FDA-1088 or fda.gov/medwatch.

Who checked this page

Adam Kennah, MDMedical Director, NexLife · Board-certified in emergency medicine · NPI 1144260043

Leads the NexLife clinical team, which medically reviewed this page on October 12, 2026.

NexLife editorial teamResearch and pricing

every number against the Zepbound prescribing information (revised August 2026), Tables 2 and 6

Every fact, sourced. Each price and rule links to the page it comes from.
How we make money. NexLife is a telehealth provider. We earn revenue when people join NexLife.
Corrections, fast. See something wrong or out of date? Email care@nexlife.us and we’ll fix it.

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