What's the difference between the Wegovy pill and the Wegovy injection?

Up until recently, there was only one way to take a GLP-1 for weight loss: injection. That all changed in December 2025, when a new weight-loss drug gained FDA approval: a pill form of Wegovy.

For the first time, people had an actual choice when it came to taking a GLP-1 for weight loss — weekly injection or daily pill. The differences don't stop at the delivery method, though. Below, we break down some of the most important things to know about the Wegovy pill and the Wegovy injection, including how they compare on effectiveness, side effects, and convenience, so you and your clinician can find the one that best fits your life. 

Key takeaways

• Wegovy (semaglutide) now comes two ways: a once-daily pill (oral semaglutide) and the original once-weekly injection.

• Both contain the same active ingredient semaglutide and produce comparable weight loss.*

• The biggest practical differences are convenience and routine. The pill is daily and must be taken in the morning on an empty stomach with a 30-minute wait; the injection is once a week with no fasting rule.

• Needle aversion, daily vs. weekly preference, and insurance coverage are usually the deciding factors.

“Both the Wegovy pill and the Wegovy injection have the same active ingredient,” says Dr. Zoya Mohiuddin, M.D., head of trust and patient safety through Weight Watchers Med+. That ingredient, semaglutide, mimics a natural gut hormone called GLP-1 that helps curb appetite and slow digestion. 

The main differences between the pill and injection are the delivery methods and schedule. “The Wegovy pill is taken daily whereas the injection is injected once a week,” says Mohiuddin.

The Wegovy pill and the Wegovy injection both feature semaglutide, so it’s not that surprising that weight-loss results are comparable between the two methods. 

According to a 2021 study published in The New England Journal of Medicine, eligible patients who took once-weekly injections of semaglutide 2.4 mg lost 14.9% of their body weight after 68 weeks, when combined with diet and exercise. As for the pill version, when eligible patients combined diet and exercise with daily, 25 mg doses of oral semaglutide (comparable to 2.4 mg of the injectable version), they lost 13.6% of their body weight after 64 weeks, per a 2025 study in the same journal. There hasn’t been a head-to-head trial comparing the formats.

The pill

The Wegovy pill is taken once daily, and, like many daily meds, it works best when you take it at a consistent time so the level remains steady in your system. There are other guidelines, however, that are specific to the medication. 

"You have to wait at least 30 minutes before you eat or drink anything or take any other medication,” says Dr. Melissa Shoemaker, M.D., an assistant professor in the department of internal medicine at UT Southwestern Medical Center who specializes in obesity medicine. 

The reason for the waiting period has to do with the special way the pill is formulated. The oral form of Wegovy contains a helper ingredient called SNAC, or salcaprozate sodium, which protects the medication from being broken down by stomach acid so it can be absorbed into your bloodstream. Food can disrupt the protection formed by SNAC, which can hinder the absorption of Wegovy. So it’s important to wait 30 minutes before eating or drinking. 

This can make your morning routine a little tricky, depending on what else you have on your schedule or other medications you take. For instance, some thyroid meds also require you to keep a 30-minute buffer, says Shoemaker. So if someone is taking both thyroid meds and the Wegovy pill, they’d have to take one, wait 30 minutes, take the other, and then wait another 30 minutes before eating or drinking. Alternatively, some people work with their clinician to move their other morning meds to bedtime instead.

The injection

The Wegovy injection is given once weekly by self-injection. Timing of the dose doesn’t matter quite as much as it does with the pill, says Shoemaker, since it’s injected under the skin and bypasses the digestive tract. 

Sometimes folks can notice a stronger effect either the day of the injection or the day after, she says, so patients and their clinicians can be strategic about choosing the best day of the week to take advantage of that — say, on a weekend if they tend to struggle with food choices on Saturdays and Sundays.

Self-injections can go in the thigh, abdomen, or back of the upper arm, though Shoemaker generally recommends the abdomen. “It’s just a single injection; you don’t even see the needle,” she says.

The side effects of the Wegovy pill and the Wegovy injection are very similar. Both share the same prescribing information, which lists their side effects. The most common ones include gastrointestinal (GI)-related effects, including nausea, diarrhea, vomiting, and constipation. Other common ones include headache, dizziness, or tiredness.

“We see that the side effects are about the same between both, though some people report slightly more GI side effects with the pill,” says Mohiuddin. Injection site reactions may occur with the injectable, so it’s important to rotate the site you use every week.

According to a 2025 study of patients using GLP-1s, the majority of those who experienced side effects noted that they were “mild and not serious.” It's also important to remember that the side effects generally get better with time, according to Mohiuddin.

The prescribing information also lists a boxed warning for the risk of thyroid C-cell tumors, including medullary thyroid cancer. The link has been observed in rodents versus humans, but the warning is kept to be safe, per Mohiuddin.

Like with any drug, it’s important to talk to your clinician first to see if you have any contraindications and to decide if the medication is right for you.

Pricing information

When it comes to Wegovy, because the active ingredient is the same, the delivery method and use instructions for each become the overarching considerations when weighing oral semaglutide vs. injectable semaglutide. For instance, if you struggle with the idea of needles — even though the Wegovy needle is tiny — the pill might be the right choice for you, says Dr. Mohiuddin. 

If you do just fine with needles, but are daunted by the timing restrictions on the Wegovy pill — say, you take other medications, eat first thing upon awakening, or vary a lot in your wakeup times — then the injection might be the better choice for you.

Tolerability is similar, but some people report slightly worse GI effects with the pill, so if you’re prone to GI issues, you may want to consider the injection instead. Insurance coverage varies by carrier, though you may end up paying a little less for the oral pill with self-pay rates, if cost is a consideration, says Shoemaker.

These are all factors that you and your clinician should review together to make a decision on medication. Your preferences matter, but so does your health history and other factors that your clinician has to weigh.  

Note too that you’re not locked in forever: You can talk to your clinician about switching from one form to the other — for instance, if you’d like to see if the other form is better tolerated or is more convenient to slot into your daily routine. “When you’re due for your next dose, you can discuss switching with your clinician,” says Dr.  Mohiuddin. They’ll also determine which dose is right for you with the switch. 

What’s key is that you and your provider stay in lockstep. With Weight Watchers Med+, you can count on regular check-ins with your clinician and ongoing messaging to talk through your challenges and celebrate your wins. That kind of relationship is why 87% of Med+ members surveyed agreed that the program provided a team of professionals who supported them throughout their journey.**

When weighing the Wegovy tablet vs. injection, the most important things to know are that they contain the active ingredient, and the weight loss is comparable. The main consideration really comes down to how you want to take it: weekly vs. daily, and via injection or tablet. Talking with your clinician can help you determine your eligibility and which form is best for your unique situation.