GLP-1 Dosing Schedules: How Ozempic, Wegovy, Mounjaro and Zepbound Step Up

Short answer: every GLP-1 starts low and climbs slowly. The first dose isn't meant to drive weight loss at all — it's there to let your body get used to the medication with as little nausea as possible. Doses then step up roughly every four weeks until you reach a maintenance dose. Here's the actual week-by-week schedule for the four most common medications, and what each rung of the ladder is for.

Why GLP-1 doses step up slowly

GLP-1 medications slow how fast your stomach empties and dial down appetite. Pushed too hard, too fast, that mechanism causes nausea, vomiting and other gut side effects. The slow climb — called titration — gives your body four weeks at each level to adjust before the next increase.

Two principles run through every schedule:

• The starting dose is a warm-up, not a treatment dose. The lowest rung is deliberately set below the level that drives much weight loss; its only job is tolerance.
• Each step needs about four weeks. These drugs take roughly four to five weeks to reach a steady blood level at any given dose, so moving faster doesn't give the drug time to settle.

Wegovy (semaglutide) — weight management

A five-step climb over about four months:

• Weeks 1–4: 0.25 mg once weekly
• Weeks 5–8: 0.5 mg once weekly
• Weeks 9–12: 1.0 mg once weekly
• Weeks 13–16: 1.7 mg once weekly
• Week 17 onward: 2.4 mg once weekly (maintenance)

Not everyone needs to reach 2.4 mg — some do well on a lower dose; that's between you and your prescriber.

Ozempic (semaglutide) — type 2 diabetes

Same molecule as Wegovy, licensed for type 2 diabetes, with a lower ceiling:

• Weeks 1–4: 0.25 mg once weekly (starter, not for glucose control)
• Week 5 onward: 0.5 mg once weekly
• Then if needed: 1.0 mg, and a maximum of 2.0 mg once weekly

Most people land at 0.5 mg or 1.0 mg. Rybelsus is the oral semaglutide tablet (3 mg, then 7 mg, then 14 mg daily), taken on an empty stomach with a small sip of water, then nothing else for 30 minutes.

Zepbound and Mounjaro (tirzepatide)

Same ladder whether branded Zepbound (weight) or Mounjaro (diabetes), climbing in 2.5 mg steps:

• Weeks 1–4: 2.5 mg once weekly (starter)
• Weeks 5–8: 5 mg once weekly
• Then, at least four weeks per step as needed: 7.5 mg, 10 mg, 12.5 mg, up to 15 mg

The 2.5, 7.5 and 12.5 mg rungs are titration-only stepping stones; 5, 10 and 15 mg are the maintenance targets.

What the schedule means for your muscle

The weeks where your dose is climbing are exactly when appetite suppression deepens and protein intake quietly falls — and that's when lean muscle is most at risk. Research on rapid GLP-1 weight loss has found a large share of the weight lost can be lean mass, not fat. So the dosing schedule is also a muscle-protection schedule:

• Hold your protein even when you're not hungry. A clean whey protein isolate makes the target reachable without a big meal.
• Train against resistance 2–3× a week. The signal to hold muscle matters more than the equipment.
• Cover the gaps. Creatine, magnesium and omega-3 — the nutrients that run low on reduced intake. Proco's GLP-1 Support Stack bundles those four at human-trial doses.

See also: Do you lose muscle on Ozempic? and Switching GLP-1 medications.

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