Missed a GLP-1 dose? Here's how the catch-up rules work

Why one missed week is rarely dramatic

Weekly GLP-1s have half-lives of about 5 to 7 days, so a few days after your scheduled shot there is still plenty of medication circulating. Appetite may get a little louder late in a stretched week, but the treatment does not collapse because life happened. The pharmacology is in our clearance explainer.

What are the actual catch-up rules?

Each product's label states its own window, and your prescriber's instructions win over anything generic. The common shape:

• A few days late (within the label window, often up to 4 or 5 days): take the dose when you remember, then return to your regular schedule.
• Past the window, next dose near: skip the missed dose. Take the next one on its usual day.
• Never double. Two doses close together stack levels and invite the roughest side effects for no benefit.

Some labels also allow permanently moving your dose day, as long as a minimum gap (typically about 48 to 72 hours) separates consecutive doses. If Sundays stopped suiting you, ask your prescriber about shifting rather than white-knuckling awkward weeks.

What if you have missed several weeks?

After a few missed doses, levels have drained and your gut has partially lost its adaptation. Restarting at your old maintenance dose can replay week-one side effects at full strength. Call your prescriber; they may restart you a step or two lower and climb back. Our titration explainer covers why the ramp exists.

How do you stop missing doses in the first place?

Almost every missed dose is a memory failure, not a decision. The fixes are unglamorous: a fixed dose day tied to an existing routine, the pen somewhere you look daily, and a log that shows the last shot at a glance. DoseLog keeps your dose day, the site you used, and a reminder on one line, so "did I take it Sunday?" stops being a genuine mystery.