Maintenance Dosing: Using GLP-1s Long-Term

This guide explains what to expect when you keep using a GLP-1 medication — semaglutide (Wegovy), tirzepatide (Zepbound), or liraglutide (Saxenda) — after you've reached your weight goal. It's general information, not a substitute for advice from your own care team.

The Main Message

Reaching your goal weight is a big accomplishment — but it doesn't mean treatment is finished. Obesity is now understood as a long-term (chronic) medical condition, much like high blood pressure or diabetes. These medications treat the condition while you take them; they don't make it go away for good. For most people, staying on some form of therapy is what keeps the weight off and keeps the health benefits going.[1]

Why Weight Comes Back When the Medication Stops

When you lose weight, your body works to get it back. Hunger hormones rise, fullness signals fall, and your body burns energy more slowly. GLP-1 medications work by quieting those signals. When the medication stops, the signals return and appetite typically increases again.

This isn't a matter of willpower. In large clinical trials:

• About two-thirds of the weight that was lost returned within about a year of stopping, even when people kept trying to eat well and exercise.[5]
• Improvements in blood pressure, blood sugar and cholesterol that came with weight loss also drifted back toward where they started.[5]

Weight regain after stopping is expected and biological, not a personal failure. What that looks like in detail: what happens when you stop taking GLP-1s.

Why Staying on Treatment Helps

Studies that kept people on their medication show a very different picture:

Trial	Medication	What happened with continued treatment
STEP 5	Semaglutide 2.4 mg	Weight loss sustained over 2 years[2]
SURMOUNT-4	Tirzepatide	People who continued kept losing weight over the following year; those switched to placebo regained much of theirs[6]
SURMOUNT-1 extension	Tirzepatide	Weight loss sustained over 3 years[7]
SELECT	Semaglutide 2.4 mg	Weight loss sustained for up to 4 years[4]

In other words, continuing treatment is what keeps the results in place for most people.

Can the Dose Be Lowered?

Sometimes — this is worth discussing with your prescriber. Newer research suggests there's more than one path once you reach your goal. In the SURMOUNT-MAINTAIN trial, among people who had reached a weight plateau on tirzepatide, the share who kept at least 80% of their weight loss at week 112 was:[3]

Approach after reaching goal	Kept at least 80% of weight loss
Stayed on full dose (10 or 15 mg)	78%
Stepped down to 5 mg	42%
Stopped (switched to placebo)	10%

• Staying at your full dose gives the best protection against regain.
• Lowering to a smaller maintenance dose kept off a good portion of the weight for many people — better than stopping, though not as effective as staying at the full dose.
• Stopping completely carries the highest chance of regaining weight.

There's no single right answer for everyone. The best plan balances how well the medication is working, side effects, cost and access, and your preferences. Never change or stop your dose on your own — plan it with your care team.

Is It Safe to Take These Medications for Years?

Long-term studies, including SELECT, which followed patients for about four years, have been reassuring overall and haven't shown new safety problems emerging with continued use.[4] As with any medication there are risks to know about, and regular contact with your care team is how they're managed.

Common side effects are mostly stomach-related — nausea, diarrhea, constipation, or vomiting. They're usually mild, tend to be worst when starting or increasing the dose, and often ease over time.

Tips for stomach side effects:

• Eat smaller meals, slowly; stop when you feel full
• Limit greasy, fried, very sweet, or spicy foods
• Limit alcohol and fizzy drinks
• Avoid lying down right after eating
• Drink water steadily through the day
• For constipation, ask about fiber, fluids, or a gentle laxative; for nausea, ginger or peppermint may help

More: managing nausea and constipation.

Contact your care team promptly if you have: severe or lasting belly pain (especially spreading to the back), persistent vomiting or trouble keeping fluids down, signs of dehydration, or symptoms of gallbladder trouble. Tell your team if you have a personal or family history of medullary thyroid cancer or MEN2, and if you're pregnant, planning a pregnancy, or could become pregnant.

Protecting Your Muscle and Bone

Some of the weight lost on a GLP-1 can be muscle, not just fat, so protecting muscle and bone matters more the longer you're on treatment. This is where daily habits do the heavy lifting:[8]

• Protein at every meal — lean meats, fish, eggs, dairy, beans, or a protein shake. Ask your team what daily target is right for you.
• Strength or resistance training 2–3 times a week — weights, bands, or bodyweight exercises. See exercise on GLP-1s.
• Regular aerobic activity, working toward about 150 minutes a week.
• A nutrient-dense diet — vegetables, fruit, whole grains, healthy fats; limit ultra-processed foods and sugary drinks. See what to eat on a GLP-1.
• Ask whether a daily multivitamin or specific nutrient checks make sense for you, especially if you're eating much less than before.

What Your Check-Ups Will Cover

Ongoing follow-up is part of long-term therapy. Visits typically review:

• Your weight and how it's trending
• Blood pressure, blood sugar, and cholesterol
• How you're tolerating the medication, and any side effects
• Muscle strength and overall nutrition
• Whether your dose should stay the same or change — and whether other medications, such as blood pressure or diabetes medicines, need adjusting as your health improves

Questions to Bring to Your Next Visit

• Should I stay at my current dose or try a lower maintenance dose?
• What's my target for protein and exercise to protect muscle?
• Which side effects should prompt me to call you?
• If cost or access becomes a problem, what are my options?
• How often should I be seen now that I've reached my goal?

The Short Version

Reaching your goal weight is a milestone, not a stopping point. Keeping the weight off — and keeping the health benefits — usually means continuing some form of therapy, whether your full dose or a lower maintenance dose, alongside strength training, good nutrition, and regular follow-up. Work with your care team to find the long-term plan that fits you.