GLP‑1 doses and schedules
A missed dose, a different injection day or a change in strength each raises a different question. This collection separates those questions and compares the wording for each medicine. Your prescriber decides your treatment schedule.
A place to start
Missed a dose?
See the separate source guidance for injections and semaglutide tablets.
Missed a dose?Changing your usual day?
Read the intervals described by each medicine’s source.
Changing your injection dayConsidering a break?
Start with what the NHS and leaflets say about discussing a pause with your doctor.
Stopping or taking a break
Find a guide
Search by medicine, symptom or question.
9 guides in doses & schedules
Your first weeks on a GLP-1
What the leaflets say about starting: the low first dose, the side effects most likely early on, and the pen.
Checked against 10 sources on 12 October 2026
Read the guideMissed a dose?
What the Mounjaro, Wegovy and Ozempic leaflets and Zepbound’s label say about a missed weekly jab, word for word.
Checked against 6 sources on 12 October 2026
Read the guideHow long does a pen last?
Four doses per pen or box: when your next pen is due, and how long each one keeps once it’s started.
Checked against 4 sources on 12 October 2026
Read the guideHow the doses step up
How Mounjaro, Zepbound, Wegovy and Ozempic doses step up, from the starting dose to the top one.
Checked against 4 sources on 12 October 2026
Read the guideWegovy 7.2mg: three injections
Wegovy’s 7.2mg dose: three 2.4mg injections on one day, at least 5cm apart, with a new needle each time.
Checked against 1 source on 12 October 2026
Read the guideChanging your injection day
The 3 day rule for moving your weekly jab to a new day, quoted from each leaflet and label, with a day counter.
Checked against 6 sources on 12 October 2026
Read the guideHow to take Rybelsus tablets
How to take Rybelsus: the 8 hour fast, a sip of water, the 30 minute wait, and its two sets of strengths.
Checked against 3 sources on 12 October 2026
Read the guideHow a weekly jab builds up
Why Mounjaro and Ozempic take about a month to settle, how soon they peak, and how long Ozempic lingers.
Checked against 5 sources on 12 October 2026
Read the guideStopping or taking a break
What the NHS and the leaflets say about stopping, and how long semaglutide stays after a last dose.
Checked against 9 sources on 12 October 2026
Read the guide