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    • Mounjaro

    Mounjaro Dosage Chart: Every Dose, Step by Step

    A complete Mounjaro dosage chart, all six strengths, how long to spend on each, what to do if you miss a dose, and how the pen works.

    Jimah Alsaai MPharmJimah Alsaai MPharmSuperintendent Pharmacist
    GPhC 2232652
    Reviewed September 2026
    Updated July 2026 · 6 min read

    Mounjaro is titrated upward through six labelled strengths. Here's the full chart, how the pens work, what to do if you miss a dose, and a clear position on the misleading "click charts" that circulate online.

    The full dosage chart

    Mounjaro KwikPen 5mg
    Role
    First therapeutic dose
    Typical minimum duration
    4 weeks minimum
    Typical use
    Meaningful appetite suppression begins
    DoseRole · typical minimum duration · typical use
    2.5mgStarting dose · 4 weeks
    Building tolerance; not a treatment dose
    5mgFirst therapeutic dose · 4 weeks minimum
    Meaningful appetite suppression begins
    7.5mgTherapeutic · 4 weeks minimum
    Intermediate step for those needing more
    10mgTherapeutic · 4 weeks minimum
    Common long-term maintenance dose
    12.5mgTherapeutic · 4 weeks minimum
    For those needing further response
    15mgMaximum dose · Ongoing
    Highest licensed strength

    How the pens work

    Mounjaro is supplied in pre-filled pens. Each pen is labelled with a specific strength and is designed to deliver that strength as a single weekly dose. Follow the instructions for use supplied with your pen. The patient information leaflet in the box is the definitive source for device-specific steps, priming, injection technique, and disposal.

    A note on "click charts" and splitting doses

    Online "click charts" circulate claiming you can dial intermediate or extra doses from a pen. Solira does not advise this. The pen is licensed to deliver specific labelled doses; attempting to dial an intermediate amount risks an inaccurate dose, means you cannot know how much medicine you've actually received, and falls outside the licensed use of the device. If cost or titration is behind the question, speak to your pharmacist. There are better answers than an unverified dose.

    If you miss a dose

    If fewer than 4 days have passed since your usual day, take it as soon as possible. If 4 days or more have passed, skip it and take your next dose on your usual day. Never take two doses in one week. There must be at least 3 days between any two doses. If you are unsure, contact your pharmacist before injecting.

    Changing your injection day

    You can change the day of your weekly injection, as long as it has been at least 3 days since your last one. Then carry on once a week on the new day.

    Why titration exists

    Slow escalation is what makes the gastrointestinal effects manageable. The four-week minimum at each step is there so your gut has time to adapt before more drug arrives, cutting the step short is the fastest way to give up on treatment.

    Your pen's patient information leaflet is the definitive source for storage, missed-dose timing and device steps. If it disagrees with anything online, follow the leaflet.

    See also how to inject Mounjaro, when to increase your dose and Mounjaro storage and travel.

    When to see your pharmacist or doctor

    • Never take two doses to make up for a missed one.
    • Never attempt to dial an unlabelled dose from a pen.
    • If in doubt about a missed dose, an early dose, or whether your pen is usable, contact your pharmacist before injecting.
    Urgent help, genuine medicines and the official leaflets

    Frequently asked questions

    If fewer than 4 days have passed since your usual day, take it as soon as possible. If 4 days or more have passed, skip it and take your next dose on your usual day. Never take two doses in one week. There must be at least 3 days between doses. If you are unsure, contact your pharmacist before injecting.

    Yes, as long as it has been at least 3 days since your last injection. Then carry on once a week on the new day.

    15mg once weekly.

    No, four weeks is a minimum, not a target.

    No. The pen is licensed to deliver specific labelled doses. Attempting to dial an intermediate amount is unsafe and falls outside licensed use.

    Keep reading

    Sources · 2Show
    1. Mounjaro Summary of Product Characteristics and instructions for use, electronic medicines compendium.
    2. MHRA guidance on the safe use of injectable medicines.

    Reviewed by Jimah Alsaai MPharm, GPhC 2232652, Superintendent Pharmacist, QuickCare Pharmacy.

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