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Short answer: both are once‑weekly injectable prescription drugs that can produce large weight loss; tirzepatide (brand name Zepbound) tends to produce larger average weight loss in trials, while semaglutide (brand name Wegovy) is also highly effective and may be better tolerated for some people. Which you should ask for depends on your health history, goals, tolerance for side effects, and insurance/cost — talk with your clinician. Below is a quick comparison and practical places to get them online.
Quick comparison
- What they are
- Wegovy = semaglutide (Novo Nordisk). A GLP‑1 receptor agonist.
- Zepbound = tirzepatide (Eli Lilly). A dual GIP + GLP‑1 agonist.
- Effectiveness
- Clinical trials show tirzepatide (Zepbound) generally produces greater average weight loss than semaglutide (Wegovy). Wegovy still produces substantial weight loss for many people.
- Side effects
- Both commonly cause nausea, vomiting, diarrhea, constipation, and appetite changes. GI side effects are the main tolerability issue.
- Both carry warnings/contraindications (history of medullary thyroid carcinoma or MEN2, pregnancy, certain pancreatitis history). Tirzepatide and semaglutide can cause hypoglycemia if combined with insulin or sulfonylureas.
- Dosing/practicalities
- Both are weekly injections with an upward titration schedule. Exact titration and max doses differ — your prescriber will choose a plan.
- Cost/coverage
- Both are expensive if paid cash; coverage varies widely. Manufacturer savings programs, pharmacy coupons (GoodRx), or insurance prior authorization can help.
Which to ask for
- Ask for Zepbound if your main goal is maximum weight loss and you have no contraindications and are willing to accept possibly stronger GI side effects.
- Ask for Wegovy if you want a well‑studied obesity medicine with a long track record in this indication and possibly a more familiar side‑effect profile.
- Best practice: ask your PCP or an endocrinologist to evaluate you and recommend one based on your medical history (diabetes, pancreatitis, thyroid cancer risk, pregnancy plans, concomitant meds).
Where to get them online (reputable options)
- Manufacturer resources (start here for patient support programs and savings)
- Wegovy: Novo Nordisk Wegovy patient support (Novo Nordisk offers savings programs and starter resources).
- Zepbound: Eli Lilly Zepbound information and patient support.
- Telehealth/weight‑management programs that arrange evaluation + prescriptions
- Calibrate (structured obesity care program)
- Hims & Hers (telehealth weight‑loss services)
- Ro/Roman (telehealth prescribing for GLP‑1s)
- PlushCare (telehealth primary care that can prescribe)
- GoodRx Care / HeyDoctor (telehealth visits) Note: these services differ in medical evaluation depth, coaching, price, and whether they will prescribe a specific brand.
- Pharmacies that will fill and ship with a valid prescription
- Large retail chains: CVS, Walgreens, Walmart, Kroger, Costco (subject to local stock and specialty pharmacy rules)
- Specialty pharmacies: Accredo, Diplomat, or the manufacturer’s specialty pharmacy partner (often required for coverage)
- Other cost resources
- GoodRx coupons, manufacturer savings cards, and patient assistance programs (check the manufacturer site or ask your provider)
Safety/cautions
- Do not buy from overseas or nonprescription sites that don’t require a clinician evaluation — many are unsafe or fake.
- Discuss pregnancy/plans for pregnancy, family history of medullary thyroid cancer or MEN2, pancreatitis, gallbladder issues, and current diabetes medications with your prescriber.
- If you’re on insulin or sulfonylureas, dose adjustments may be needed to avoid hypoglycemia.
Next steps
- Book an appointment with your PCP, endocrinologist, or a reputable telehealth weight‑management program above.
- Say something like: “I’m interested in medication for chronic weight management. Based on my history, do you think Wegovy (semaglutide) or Zepbound (tirzepatide) is better for me?”
- If prescribed, ask about expected timeline, titration plan, side‑effect management, and cost/coverage assistance.
If you want, tell me a bit about your medical history (diabetes, prior pancreatitis, pregnancy plans, current meds) and whether insurance coverage is important — I can give more tailored guidance and point to exact manufacturer assistance pages or specific telehealth programs.