Wegovy is approved as a long-term medication, and most people who use it for weight loss will need to stay on it indefinitely to keep the weight off. The FDA labels it specifically for “long term” weight reduction, not as a short-course treatment you take for a set number of months and then stop. That said, the timeline has distinct phases, and understanding each one helps you know what to expect.
The First 16 Weeks: Dose Escalation
You don’t start on the full dose. Wegovy follows a four-month ramp-up schedule designed to let your body adjust gradually and reduce side effects like nausea. You begin with the lowest dose for four weeks, then increase every four weeks through progressively higher doses until you reach the maintenance level at week 17. If you’re having trouble tolerating a dose increase, your prescriber can hold you at that level for an extra four weeks before moving up.
Weight loss during this phase is real but modest. The medication is already working on your appetite, but you’re not yet at the dose where the biggest changes happen.
When Weight Loss Peaks and Plateaus
Once you reach the maintenance dose, weight loss accelerates. In clinical trials, participants continued losing weight steadily until hitting a plateau around 60 weeks (roughly 14 months) after starting treatment. At that point, the body reaches a new equilibrium, and weight typically stabilizes.
This plateau is normal and expected. It doesn’t mean the medication stopped working. Wegovy is still actively suppressing appetite and influencing how your body processes food. Without it, weight would climb back up. The plateau simply means your body has settled at a lower set point while the drug is on board.
What Happens If You Stop
This is the part that surprises most people and the main reason Wegovy is considered a long-term medication. A large meta-analysis published in The Lancet tracked what happens after people discontinue GLP-1 drugs like Wegovy. Within one year of stopping, participants regained about 60% of the weight they had lost. Over longer periods, the regain was estimated to plateau at roughly 75% of lost weight.
That means if you lost 40 pounds on Wegovy, you could expect to regain about 24 pounds within a year of stopping, and potentially 30 pounds over time. The weight doesn’t come back because of willpower failure. Your body ramps appetite signals back up and metabolic processes shift once the drug is no longer present. The biological drivers of obesity reassert themselves, much like blood pressure rises again when someone stops taking blood pressure medication.
Long-Term Safety Data
Because Wegovy is meant to be taken indefinitely, long-term safety matters. The largest and longest trial, called SELECT, followed patients using semaglutide (the active ingredient in Wegovy) for an average of about 33 months, or nearly three years. That trial focused on cardiovascular outcomes in people with obesity, and it provided reassurance that multi-year use is feasible. Still, the drug has only been on the market since 2021, so truly long-term data spanning decades doesn’t exist yet.
Insurance May Set Its Own Timeline
Even though Wegovy is designed for ongoing use, your insurance plan may treat it differently. Most commercial health plans that cover Wegovy require you to demonstrate at least 4% to 5% weight loss from your starting point to continue coverage. Some plans also require that your BMI drops to 25 or below. These reauthorization checkpoints typically happen at 6 or 12 months.
If you don’t meet the threshold, your coverage could be denied for continuation. This creates a practical time pressure that doesn’t align with the medical reality. Some people lose weight more slowly, and the clinical trials show weight loss continuing well past the 6-month mark. If your insurer requires early results, talk to your prescriber about documentation that supports continued treatment.
Can You Ever Come Off It?
Some people do stop Wegovy after reaching their goal weight and manage to keep some of the loss through intensive lifestyle changes. But the data is clear that most people regain the majority of lost weight. The people most likely to maintain results after stopping are those who have made substantial, sustained changes to eating patterns and physical activity during treatment, essentially building habits strong enough to partially compensate for the return of stronger hunger signals.
A more realistic middle path for some patients is dose reduction rather than full discontinuation. While this isn’t heavily studied yet, some prescribers lower patients to a smaller maintenance dose to see if a reduced amount of medication can hold weight steady with fewer side effects and lower cost. This is an off-label approach, and results vary.
For most people, the honest answer is that Wegovy works as long as you take it. Planning for long-term use, including cost, insurance logistics, and side effect management, is more practical than planning for a defined stop date.