GLP-1 dosing, titration & the pipeline

The dose is escalated slowly on purpose — to blunt the nausea that comes with starting too fast. Here are the published schedules and the wave of next-generation drugs behind them, all of which are still investigational.

Semaglutide titration

The schedule

Wegovy escalates over 16+ weeks, four weeks per step: 0.25 → 0.5 → 1.0 → 1.7 → 2.4 mg weekly, then holds at 2.4 mg (a higher 7.2 mg option now exists for tolerant patients). Ozempic is the same molecule for diabetes and tops out at 2 mg, so off-label weight use underdoses relative to Wegovy. An oral semaglutide for weight has also been approved.

Tirzepatide titration

The schedule

Steps up in 2.5 mg increments no sooner than every four weeks: 2.5 (a starter dose, not therapeutic) → 5 → 7.5 → 10 → 12.5 → 15 mg weekly. Approved maintenance doses are 5, 10 or 15 mg. The slow climb exists to limit gastrointestinal side effects during escalation.

The pipeline

What's coming (all investigational)

The next wave, none yet approved for obesity: retatrutide, a triple GLP-1/GIP/glucagon agonist, hit ~24% in phase 2 and ~28% in early phase 3; orforglipron, an oral once-daily pill, ~12%; CagriSema (cagrilintide + semaglutide) ~22.7%; plus survodutide and once-monthly MariTide. Cross-trial comparisons are indirect — different populations and endpoints — and press-release figures precede full peer review. Evidence ●●●○○ (early / not yet approved)

Slow is the point

Most GI side effects cluster during dose escalation and settle at a steady dose. Rushing the titration to lose faster mostly buys more nausea, not more weight loss.