If you’ve already looked into weight loss service and medication, maybe you’ve spoken to a doctor through an OHIP-covered weight loss program, or you’ve done your own research and landed on Zepbound or Wegovy as options worth exploring, you’ve probably hit the same wall a lot of Canadians hit next: okay, but how much is this actually going to cost me? Because without private insurance coverage for weight loss medication in Canada, you’re looking at somewhere between $350 and $570 a month out of pocket. That’s not a small number. The good news is that private coverage does exist, and more plans are starting to include these medications than most people realise. The less-good news is that getting that coverage approved takes some work and knowing what you’re walking into makes a real difference.
This is a practical guide to exactly that.
First, the Reality Check on Public Coverage
Before getting into private insurance, it’s worth being clear about what public plans do and don’t cover because there’s a lot of confusion around this.
Provincial drug programs in Canada, including Ontario’s ODB, do not cover Wegovy or Zepbound for weight management. The consultation itself can be OHIP-covered through an accredited weight loss service, but the medication is a separate matter. Provincial plans will cover semaglutide-based drugs like Ozempic only when they’re prescribed for type 2 diabetes, not for obesity treatment. So if you’re in Ontario and you’ve been told your consultation is free, that’s true. What you pay for the medication afterward depends entirely on what’s in your private benefits plan.
Does Your Private Insurance Actually Cover These Drugs?
This is where things get a bit complicated, because the honest answer is: maybe.
Major insurers like Manulife, Canada Life, Blue Cross, and GreenShield may cover weight loss medications, but approval is typically contingent on your specific plan details, prior authorization, and medical justification. The key word there is “may.” Group plans through employers are your best shot, roughly 31% of Canadian employers now include GLP-1 medication coverage in their benefit plans as of 2025, which is actually a meaningful jump from where things stood just a few years ago.
But here’s the catch a lot of people miss: 56% of employers who do offer coverage restrict it to diabetes management only, not weight loss. So even if your plan technically covers semaglutide, it might only do so under a diabetes diagnosis — not for chronic weight management, which is what Wegovy is prescribed for.
Individual or personal insurance plans are a harder road. Most of them don’t cover obesity medications at all, or bury them under a special authorization process that takes real effort to navigate.
The first thing to do — before anything else — is call your insurer directly and ask two specific questions. Is Wegovy or Zepbound on your plan’s drug formulary? And if so, what does prior authorization require? Those two answers will tell you pretty much everything about what you’re working with.
What Is Prior Authorization and Why Does It Matter?
Prior authorization is essentially your insurer asking for proof that the medication is medically necessary for you specifically before they agree to pay for it. It sounds bureaucratic because it is, but it’s also the main lever you have to get coverage approved — and a well-prepared submission makes a real difference.
Prior authorization for weight loss medications in Canada typically requires a BMI over 30, or over 27 with documented comorbidities, along with evidence of failed lifestyle attempts and a physician’s clinical justification. What that means practically is that your physician needs to submit paperwork to your insurer that makes your case — your BMI, your health history, what you’ve already tried, and why medication is the appropriate next step.
Canada Life, for example, has a specific prior authorization form for Zepbound that asks your physician to document your weight history, dietary and exercise attempts over at least three to six months, and whether you have any related health conditions. It also asks whether there’s a history of at least one unsuccessful dietary and exercise regimen before Zepbound is considered. This is fairly standard across insurers, the specifics vary but the general framework is the same.
The process usually takes between five and ten business days once your physician submits the form. Faster if it’s flagged as urgent.
Insurer-by-Insurer: What to Expect
Every plan is different, but here’s a rough picture of where the major Canadian insurers currently stand on Wegovy and Zepbound coverage:
Manulife — Manulife Wegovy coverage is possible under group plans, but it typically requires prior authorization and your employer’s plan has to have opted into obesity medication coverage. Not all Manulife group plans include it by default, so checking your specific plan documents matters more than asking general questions.
Canada Life — Has a formal prior authorization process for both Wegovy and Zepbound, which is actually a good sign. The fact that the form exists means they’re processing these requests. Coverage isn’t guaranteed, but having a dedicated pathway is better than the alternative.
Green Shield — Green Shield has started including weight loss medications in standard group plans, but only with strict prior authorization and adherence to clinical guidelines. They’ve been one of the more progressive Canadian insurers on this front.
Blue Cross — Varies significantly depending on which Blue Cross plan you’re on and whether your employer has opted in. Medavie Blue Cross, for instance, makes Wegovy coverage contingent on the plan sponsor’s choices, meaning your employer essentially decides whether it’s on the table.
Sun Life — Primarily covers GLP-1 medications for diabetes. Weight loss coverage through Sun Life is possible in customized group plans but less common in standard ones.
What If Your Claim Gets Denied?
This is more common than it should be, and it’s not necessarily the end of the road.
If your prior authorization gets denied, your physician can submit an appeal often with a letter of medical necessity that goes into more detail about your specific situation. The appeal is your chance to fill in whatever the initial submission was missing, whether that’s more detailed documentation of lifestyle attempts, clearer connections to related health conditions, or a stronger clinical argument for why this particular medication is appropriate.
It’s also worth asking your physician to double-check that the right diagnostic codes were used on the initial submission. An incorrect or incomplete code is one of the most common reasons prior authorizations get rejected on the first try and it’s a fixable problem.
If the appeal also gets denied, you’re not completely out of options. Some plans allow for a formulary exception, which is essentially a request to cover a medication that isn’t normally on their list based on your individual medical circumstances. It’s more work, but it does sometimes succeed.
What About the Cost If Insurance Doesn’t Come Through?
If private coverage doesn’t pan out, the out-of-pocket reality for Wegovy and Zepbound in Canada is significant but not without some room to manage.
With comprehensive private coverage, some patients pay as little as $25 to $106 per month through co-payment arrangements. Without any coverage, you’re looking at a much higher monthly spend, a month’s supply of Wegovy without insurance typically runs between $400 and $570 CAD, depending on the pharmacy, dosage, and any available discounts.
A few things worth knowing on this front. Eli Lilly has a patient support program for Zepbound in Canada called Myzepbound, which can reduce out-of-pocket costs for eligible patients. Novo Nordisk has similar support for Wegovy. These aren’t advertised loudly, but your prescribing physician or pharmacist can walk you through how to enrol. Buying in bulk (a three-month supply at once) also sometimes gets you a better per-dose price at certain pharmacies, worth asking about directly.
And if you’re paying out of pocket and the medication is prescribed by a physician as medically necessary, it may be claimable through a Health Spending Account if your employer offers one.
The Bigger Picture
The coverage landscape for weight loss medication in Canada is genuinely improving, even if it’s still more complicated than it should be. More employers are adding GLP-1 medications to their benefit plans, more insurers are developing formal pathways for prior authorization, and the clinical recognition of obesity as a chronic disease is slowly shifting how these drugs get classified.
Getting coverage approved still takes some effort, a physician who understands the process, documentation that makes a clear medical case, and sometimes a bit of persistence if the first submission doesn’t go through. But for a lot of patients in Ontario, the starting point is simpler than they expect: a free consultation through an OHIP-covered weight loss service, a physician who can assess whether Wegovy, Zepbound, or another medication is right for you, and a clear plan for the insurance conversation that follows.
The paperwork is worth it. For a medication that can run over $5,000 a year without coverage, getting approval can be the difference between treatment being realistic or not.
