# Missed a Mounjaro or Wegovy Dose? What the Leaflets Say

> What the official patient leaflets say about catching up, when to skip, and when to speak to your prescriber. Includes the Wegovy pill and Foundayo.

Source: https://comparepharmacyscore.com/html/guides-missed-dose.html  
Publisher: Pharmacy Score (comparepharmacyscore.com), free and independent  
Author: John Longton, GPhC Mock Inspection Service Auditor  
Last reviewed: 16 October 2026

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- Missed a Mounjaro or Wegovy dose? What the leaflets say

Guide

# Missed a Mounjaro or Wegovy dose? What the leaflets say.

There's a grace window for a late dose, and a point where the leaflet says skip instead.

In short

There's a grace window for a late dose, and a point where the leaflet says skip instead.

Missing a weekly dose happens: travel, a delayed delivery, a forgotten Sunday. Both leaflets give you a window.

### Mounjaro

If it's within **4 days (96 hours)** of the missed dose, take it as soon as you can, then continue on your normal day. If more than 4 days have passed, skip it and take the next dose on schedule. Never double up.

### Wegovy

The window is **5 days**: within that, take the dose and carry on; beyond it, skip to the next scheduled day. Again, never take two doses to catch up. If you are unsure what your pen holds per dose, the [Wegovy click calculator on iGovy](https://igovy.co.uk/wegovy-click-calculator/) shows it pen by pen.

### Daily tablets

For the Wegovy pill or Foundayo, the rule is the familiar one: if you miss a day, skip it and take the next tablet at the usual time, no doubling.

Repeated missed doses, or a gap of more than a couple of weeks, is a prescriber conversation, you may be advised to restart lower. Sources: the official patient leaflets at the [electronic medicines compendium](https://www.medicines.org.uk/emc).

## Before you start, the safety page.

What is normal in the first weeks, what changes after a dose increase, the contraceptive-pill interaction many people are never told about, and the symptoms that mean stop and get help. [Side effects and safety →](https://comparepharmacyscore.com/html/mounjaro-wegovy-side-effects.html)

## The official sources, in one place.

These are the bodies that actually regulate, appraise and advise. If anything you read anywhere (including here) disagrees with them, believe them.

[GPhC registerCheck any pharmacy's registration before you order, free and instant.](https://www.pharmacyregulation.org/registers/pharmacy)[MHRA: buying medicines onlineThe regulator's official advice on buying medication safely on the internet.](https://www.gov.uk/guidance/buy-medicines-online)[MHRA Yellow CardReport a side effect from any medicine, it takes five minutes and it matters.](https://yellowcard.mhra.gov.uk/)[NICE: semaglutide (TA875)The evidence-based NHS guidance for Wegovy in weight management.](https://www.nice.org.uk/guidance/ta875)[NICE: tirzepatide (TA1026)The evidence-based NHS guidance for Mounjaro in weight management.](https://www.nice.org.uk/guidance/ta1026)[NHS: obesityNHS overview of treatment options, including when medicines are considered.](https://www.nhs.uk/conditions/obesity/)[NHS: Better HealthFree NHS support for losing weight, with or without medication.](https://www.nhs.uk/better-health/lose-weight/)[electronic medicines compendiumThe official patient information leaflets for every licensed UK medicine.](https://www.medicines.org.uk/emc)