Compound

Tirzepatide

4 sourced research updates tagged Tirzepatide, newest first — what changed, what the evidence shows and what it means for how people run a protocol.

GLP-1 & metabolic

Retatrutide's Phase 3 results are in — and the filing slipped to 2027

Eli Lilly reported in July 2026 that retatrutide, a triple GLP-1/GIP/glucagon receptor agonist, met its primary endpoints in the Phase 3 TRIUMPH-2 and TRIUMPH-3 trials, with weight loss of roughly…

Practical dosing

Is there a best time of day to take a weekly GLP-1?

Once-weekly semaglutide and tirzepatide can be injected at any time of day, with or without food, because their half-lives are measured in days rather than hours.

Reconstitution & dosing math

Converting milligrams to insulin-syringe units without guessing

A U-100 insulin syringe is marked in insulin units where 100 units equals 1 mL. To convert a milligram dose to units, divide the dose by the solution's concentration in mg/mL, then multiply by 100.

Practical dosing

You missed your weekly GLP-1 dose — what the label actually says

For once-weekly semaglutide, the label says take the missed dose within 5 days of the scheduled day; past that, skip it and resume your normal schedule.

All research updates

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