Particles can form from crystallization of the medication, precipitation of inactive ingredients, contamination from the rubber stopper, or introduction of foreign material during use
The largest private insurers and their Wegovy coverage policies as of April 2026: Manulife: Covers with prior authorization, BMI 30 or 27 with comorbidity, 20% copay Sun Life: Covers with prior authorization, requires 6-month lifestyle modification documentation, 25% copay Great-West Life (Canada Life): Covers on select plans only, 30% copay, annual spending cap of CAD $3,000 Green Shield Canada: Covers with prior authorization, no annual cap, 20% copay Blue Cross (varies by province): Coverage varies
Medicare requires laboratory evidence of deficiency or a confirmed diagnosis such as pernicious anemia, a signed physician order specifying drug name, dose, route, and frequency, an administration record documenting the date, drug, dose, route, site, and administering clinician, and an ICD-10-CM diagnosis code on the claim that traces to a covered indication in the relevant MACs LCD.
Splitting the weekly dose into two smaller injections is sometimes done to reduce peak drug concentration and minimize GI side effects
Drug design, development and therapy , 4503-4525