For weight loss, the standard semaglutide dosage starts at 0.25 mg once weekly and gradually increases to a maintenance dose of 2.4 mg per week. In Canada, this titration schedule reduces side effects while building tolerance, and the full 2.4 mg weekly dose is the target shown to deliver significant weight loss in clinical trials.
What Is the Recommended Semaglutide Dosage for Weight Loss?
Semaglutide is a GLP-1 receptor agonist originally developed for type 2 diabetes but now widely prescribed for chronic weight management. The dosing protocol for weight loss follows a strict monthly escalation to minimize gastrointestinal side effects. You begin with 0.25 mg injected subcutaneously once a week for the first four weeks. This introductory dose is not yet therapeutic for weight loss; it simply allows your body to adjust.
After four weeks, the dose increases to 0.5 mg weekly. From there, the dose escalates every four weeks: 1.0 mg, then 1.7 mg, and finally the full maintenance dose of 2.4 mg once weekly. Some patients may see results at lower doses, but the 2.4 mg weekly dose is the proven target for maximum efficacy. In Canada, this titration schedule is identical to the global standard, and healthcare providers monitor progress closely during each step.
Why Does Semaglutide Start at a Low Dose?
The gradual dose escalation is critical for tolerability. Semaglutide slows gastric emptying and acts on appetite centers in the brain, which can cause nausea, vomiting, or diarrhea if introduced too quickly. Starting at 0.25 mg and increasing slowly gives the digestive system time to adapt. Most side effects are mild and transient, peaking during dose increases and then subsiding. If you experience persistent side effects, your doctor may extend a dose step for an extra four weeks before moving up.
How Many mg of Semaglutide Per Week for Weight Loss in Canada?
In Canada, the maximum approved dose for weight loss is 2.4 mg once weekly, marketed under the brand name Wegovy. This is the same dose used in the STEP clinical trials, where participants lost an average of 15% of their body weight over 68 weeks. Some Canadian clinics may also prescribe off-label lower doses of Ozempic (the diabetes formulation) for weight loss, but the official weight loss indication requires the 2.4 mg maintenance dose. The key point: the full 2.4 mg per week is the evidence-based target, and reaching it requires patience through the titration months.
Semaglutide Weight Loss Results: What to Expect
Clinical data shows that most weight loss occurs after reaching the 1.7 mg or 2.4 mg dose. Early weeks on lower doses may yield modest changes, but significant fat loss typically accelerates around month three or four. In the STEP 1 trial, participants on 2.4 mg semaglutide lost an average of 14.9% of initial body weight, compared to 2.4% with placebo. Results vary, but consistent weekly dosing and lifestyle modifications amplify the effect. Many Canadian patients report noticeable appetite suppression within the first month, even before the scale moves dramatically.
How to Administer Semaglutide Injections
Semaglutide for weight loss comes in a pre-filled pen for subcutaneous injection. You inject it once weekly, on the same day each week, at any time of day, with or without food. Rotate injection sites among the abdomen, thigh, or upper arm. If you miss a dose and the next scheduled dose is more than two days away, take the missed dose as soon as possible. If it is less than two days away, skip the missed dose and resume the regular schedule. Never double up doses.
Semaglutide Dosage for Weight Loss vs. Diabetes
For type 2 diabetes, semaglutide (Ozempic) is typically dosed at 0.5 mg or 1.0 mg once weekly. The weight loss dose of 2.4 mg is significantly higher. While some weight loss occurs at diabetes doses, the dedicated weight management dose is necessary for optimal results. In Canada, Wegovy is specifically approved for weight loss, while Ozempic is approved for diabetes, though off-label use for weight loss is common. The titration schedule is similar, but the maintenance dose differs.
Where to Buy Semaglutide in Canada
Semaglutide for weight loss requires a prescription in Canada. You can obtain it through a healthcare provider, an online telehealth service, or a specialized weight loss clinic. Some Canadian pharmacies carry Wegovy, but supply can be inconsistent. Many patients explore reputable online peptide suppliers that offer semaglutide for research purposes. When looking to buy semaglutide in Canada, ensure the source provides third-party testing and transparent purity reports. For those researching peptides like semaglutide, it's also worth understanding how other compounds compare; for instance, AOD-9604 dosage for fat loss per day follows a different protocol and may be stacked with GLP-1 agonists.
Can You Adjust the Semaglutide Dose Faster?
Some patients are eager to reach the 2.4 mg dose quickly, but accelerating the titration is not recommended. Doing so dramatically increases the risk of severe gastrointestinal side effects, which can lead to dehydration and discontinuation. The four-week per dose step is designed to balance efficacy and tolerability. In rare cases, a physician may slow down the titration if side effects are problematic, but never speed it up without medical supervision.
What If You Miss a Dose of Semaglutide?
If you miss a dose and it has been less than 5 days since the missed dose, take it as soon as you remember. If more than 5 days have passed, skip the missed dose and take the next one on your regular schedule. Then resume your usual once-weekly dosing. This prevents overlapping doses and reduces side effect risk. Consistency is key for appetite control, so try to stick to the same day each week.
Semaglutide and Lifestyle Changes
Semaglutide is not a standalone solution. It works best combined with a reduced-calorie diet and increased physical activity. The medication curbs appetite and slows digestion, making it easier to adhere to dietary changes. In Canadian weight loss programs, patients often work with dietitians to optimize nutrition while on semaglutide. Without lifestyle modifications, weight loss may be less pronounced, and weight regain after stopping the medication is more likely.
Potential Side Effects of Semaglutide at Weight Loss Doses
The most common side effects are gastrointestinal: nausea, diarrhea, vomiting, constipation, and abdominal pain. These are usually mild to moderate and decrease over time. Serious but rare side effects include pancreatitis, gallbladder disease, and kidney injury. There is also a boxed warning for thyroid C-cell tumors in rodents, though human relevance is unclear. In Canada, healthcare providers screen for personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2 before prescribing.
Semaglutide Dosage for Weight Loss in Canada: Cost and Coverage
In Canada, Wegovy is not yet covered by all provincial drug plans, and private insurance coverage varies. The monthly cost can range from $300 to $500 CAD without coverage. Some patients opt for Ozempic off-label at lower doses due to cost, but this may not yield the same weight loss results. Research peptide suppliers may offer semaglutide at a lower cost, but quality and legality must be carefully vetted. Always prioritize safety and purity when sourcing peptides.
How Long Should You Stay on Semaglutide?
Semaglutide for weight loss is intended for long-term use. In trials, participants who stopped the medication regained a significant portion of the lost weight within a year. Maintenance therapy at 2.4 mg weekly is often continued indefinitely, with regular monitoring by a healthcare provider. Some patients may eventually taper to a lower maintenance dose if weight loss goals are sustained, but this should be done under medical guidance.
Semaglutide vs. Other Weight Loss Peptides
Semaglutide is one of several peptides used for weight loss. Tirzepatide, a dual GIP/GLP-1 agonist, has shown even greater weight loss in trials, with doses up to 15 mg weekly. Other peptides like MOTS-c and CJC-1295 stacks are sometimes used to counteract muscle loss during GLP-1 therapy. When comparing semaglutide dosage to other options, the 2.4 mg weekly target is well-established, but individual responses vary.
Frequently Asked Questions About Semaglutide Dosage
Can I start semaglutide at a higher dose?
No. Starting at 0.25 mg is essential to minimize side effects. Jumping to a higher dose can cause severe nausea and vomiting.
What if I don't lose weight on 2.4 mg?
Some patients are non-responders. If after 12-16 weeks on the full dose you haven't lost at least 5% of body weight, your doctor may consider discontinuing or switching therapies.
Is semaglutide safe for long-term use?
Long-term safety data is still accumulating, but studies up to 2 years show a favorable risk-benefit profile. Ongoing monitoring is recommended.
Can I stack semaglutide with other peptides?
Some researchers stack semaglutide with peptides like AOD-9604 or MOTS-c and Epitalon for metabolic optimization, but this should only be done under expert supervision due to unknown interactions.
Key Takeaways on Semaglutide Dosage for Weight Loss in Canada
The standard semaglutide dosage for weight loss in Canada is a gradual titration from 0.25 mg