Mounjaro Dosing Timeline: Week-by-Week UK Guide

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Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Mounjaro (Tirzepatide)
Weeks 1–4

2.5mg

1 pen • 4 Weeks

£145 £124.99

£31.25 / Per Week

Your starting dose – designed to help your body adjust gently to treatment

⭐ Future Orders at £145
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Mounjaro (Tirzepatide)
Weeks 5–8

5mg

1 pen • 4 Weeks

£179 £159.00

£39.75 / Per Week

First step up – builds on your progress as your body adapts to treatment

⭐ Future Orders at £179
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Mounjaro (Tirzepatide)
Weeks 9–12

7.5mg

1 pen • 4 Weeks

£220 £200.00

£50.00 / Per Week

Mid-range dose – for continued progression and enhanced results

⭐ Future Orders at £220
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Mounjaro (Tirzepatide)
Weeks 13–16

10mg

1 pen • 4 Weeks

£245 £225.00

£56.25 / Per Week

Higher strength dose – supports significant weight loss progress

⭐ Future Orders at £245
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Mounjaro (Tirzepatide)
Weeks 17–20

12.5mg

1 pen • 4 Weeks

£270 £250.00

£62.50 / Per Week

Advanced dose – for patients requiring stronger therapeutic effect

⭐ Future Orders at £270
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Mounjaro (Tirzepatide)
Weeks 21+

15mg

1 pen • 4 Weeks

£287 £267.00

£66.75 / Per Week

Maximum dose – the highest available strength for optimal results

⭐ Future Orders at £287
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Wegovy (Semaglutide)
Weeks 1–4

0.25mg

1 pen • 4 Weeks

£89 £69.00

£17.25 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £89
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Wegovy (Semaglutide)
Weeks 5–8

0.5mg

1 pen • 4 Weeks

£99 £79.00

£19.75 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £99
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Wegovy (Semaglutide)
Weeks 9–12

1mg

1 pen • 4 Weeks

£119 £99.00

£24.75 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £119
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Wegovy (Semaglutide)
Weeks 13–16

1.7mg

1 pen • 4 Weeks

£169 £149.00

£37.25 / Per Week

Higher strength – supports accelerated weight loss progress

⭐ Future Orders at £169
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Wegovy (Semaglutide)
Weeks 17+

2.4mg

1 pen • 4 Weeks

£199 £179.00

£44.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199
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Wegovy Oral Pill
Weeks 1–4

1.5mg

1 pen • 4 Weeks

£83.00 £63.00

£20.75 / Per Week

Your starting dose – eases your body into treatment with minimal side effects

⭐ Future Orders at £83.00
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Wegovy Oral Pill
Weeks 5–8

4mg

1 pen • 4 Weeks

£110.00 £90.00

£27.50 / Per Week

First step up – continues building tolerance for long-term success

⭐ Future Orders at £110.00
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Wegovy Oral Pill
Weeks 9–12

9mg

1 pen • 4 Weeks

£140.00 £120.00

£35.00 / Per Week

Mid-range dose – where most patients start seeing meaningful results

⭐ Future Orders at £140.00
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Wegovy Oral Pill
Weeks 13+

25mg

1 pen • 4 Weeks

£199.00 £179.00

£49.75 / Per Week

Maximum dose – the highest available strength for optimal weight management

⭐ Future Orders at £199.00
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Mounjaro Dosing Timeline: What Happens Week by Week

Published on: June 03, 2026

Understanding the mounjaro dosing schedule UK is essential for safe, effective weight loss with tirzepatide. At Cured Pharmacy, our UK-registered prescribers guide you through each dose escalation stage, from the initial 2.5mg starter dose to the maximum 15mg maintenance dose. This week-by-week timeline explains exactly what to expect at each stage of your Mounjaro treatment journey.

How Mounjaro Dosing Works: The Gradual Escalation Principle

Mounjaro (tirzepatide) follows a structured dose escalation protocol designed to minimise gastrointestinal side effects whilst maximising weight loss efficacy [1]. Unlike medications with fixed dosing, tirzepatide requires a gradual four-week step-up approach at each dose level, allowing your body to adapt to increasing concentrations of the dual GIP/GLP-1 receptor agonist.

The MHRA-approved dosing schedule begins at 2.5mg once weekly for four weeks, then increases by 2.5mg increments every four weeks until reaching your target maintenance dose [1]. This gradual approach was validated in the SURPASS clinical trial programme, which demonstrated significantly lower rates of nausea and vomiting compared to immediate higher-dose initiation [2].

Your UK prescriber at Cured Pharmacy will determine your optimal maintenance dose based on your weight loss response, tolerability, and clinical goals. Most patients reach therapeutic benefit between 10mg and 15mg weekly, though some achieve their targets at lower doses [1]. The key principle is patience—rushing dose escalation increases side effect risk without improving long-term outcomes.

Weeks 1-4: Starting with Mounjaro 2.5mg

Your Mounjaro journey begins with the 2.5mg starter dose, administered as a single subcutaneous injection once weekly for four consecutive weeks [1]. This initial dose is intentionally sub-therapeutic for weight loss—its primary purpose is to allow your gastrointestinal system to adapt to tirzepatide's appetite-suppressing effects.

During these first four weeks, you may notice mild appetite reduction and early satiety, though significant weight loss is uncommon at this starter dose. Clinical trial data shows average weight reduction of 2-3% during the 2.5mg phase [2]. Common experiences include mild nausea (typically resolving within 48-72 hours post-injection), slight changes in bowel habits, and reduced food cravings between meals.

It's crucial to maintain your injection schedule on the same day each week, allowing a consistent 7-day interval between doses. If you experience persistent nausea, eating smaller, more frequent meals and avoiding high-fat foods can help. Your Cured Pharmacy clinical team remains available throughout this initiation period to address any concerns before your first dose increase.

What to Expect in Your First Month

The 2.5mg phase serves as your body's adjustment period. Most patients report feeling fuller after smaller portions, though hunger suppression is less pronounced than at higher doses. Gastrointestinal side effects, if they occur, are typically mildest during this starter phase and improve significantly by week three or four [2]. Focus on establishing your weekly injection routine and monitoring how your body responds before escalating to 5mg.

Weeks 5-8: Increasing to Mounjaro 5mg

After completing four weeks at 2.5mg, you'll escalate to 5mg once weekly for the next four-week period [1]. This first dose increase often marks the transition from adaptation to therapeutic effect, with many patients experiencing more noticeable appetite suppression and accelerated weight loss.

Clinical data from the SURMOUNT-1 trial showed average weight reduction of 5-7% by week eight on the 5mg dose, compared to 2-3% at baseline [2]. You may notice increased satiety lasting 3-4 days post-injection, reduced interest in snacking, and earlier fullness during meals. Gastrointestinal side effects may temporarily intensify during the first 1-2 weeks at 5mg before settling to baseline levels.

This dose represents the minimum therapeutic level for some patients, though most will continue escalating to achieve optimal results. Your UK prescriber will assess your four-week response at 5mg—including total weight loss, side effect profile, and adherence—before approving progression to 7.5mg. If you're experiencing excellent results with minimal side effects, continuing escalation is typically recommended.

Dose Duration Primary Purpose Expected Weight Loss (Average)
2.5mg Weeks 1-4 Initiation & tolerance building 2-3% from baseline
5mg Weeks 5-8 First therapeutic dose 5-7% from baseline
7.5mg Weeks 9-12 Mid-range therapeutic dose 10-12% from baseline
10mg Weeks 13-16 High therapeutic dose 15-18% from baseline
12.5mg Weeks 17-20 Maximum-strength option 18-20% from baseline
15mg Week 21+ Highest licensed maintenance dose Up to 20.9% at 72 weeks

Weeks 9-12: Progressing to Mounjaro 7.5mg

The 7.5mg dose level, administered weekly for four weeks, represents a mid-range therapeutic dose where many patients begin seeing substantial weight loss momentum [1]. By this stage, your body has adapted to tirzepatide's dual-receptor mechanism, and the appetite-suppressing effects become more consistent throughout the week.

Trial participants at 7.5mg reported average weight reduction of 10-12% from baseline by week twelve, with peak satiety effects occurring 24-72 hours post-injection [2]. You may find yourself naturally choosing smaller portions, experiencing reduced food noise (intrusive thoughts about eating), and feeling satisfied with significantly fewer calories than pre-treatment.

Gastrointestinal tolerance is generally well-established by this dose, though some patients experience transient nausea for 24-48 hours following each injection. Staying well-hydrated, avoiding large meals immediately after injection day, and eating protein-rich foods can optimise tolerability. Your Cured Pharmacy prescriber will evaluate whether 7.5mg serves as your maintenance dose or if further escalation to 10mg is appropriate based on your individualised treatment goals.

Recognising Therapeutic Response at 7.5mg

By week twelve, you should have lost at least 5% of your starting body weight to be considered a treatment responder [1]. If you've achieved this threshold with good tolerability, your prescriber may recommend continuing at 7.5mg as your maintenance dose rather than escalating further. However, if weight loss has plateaued or you're tolerating the medication well, progression to 10mg often produces additional benefit without significantly increased side effects.

Weeks 13-16: Advancing to Mounjaro 10mg

The 10mg weekly dose represents the first of two maximum-strength options and is the maintenance dose for many patients achieving their weight loss targets [1]. At this level, tirzepatide's dual GIP/GLP-1 activity reaches near-maximal receptor engagement, producing robust appetite suppression and metabolic effects.

SURMOUNT-1 data demonstrated average weight reduction of 15-18% at the 10mg dose by week 72, with most weight loss occurring within the first 32-36 weeks [2]. Patients commonly report profound changes in eating behaviour, including complete loss of food preoccupation, comfortable adherence to calorie-restricted diets, and sustained satiety from small meals.

Side effects at 10mg are typically consistent with those experienced at 7.5mg, as most gastrointestinal adaptation has already occurred. New-onset nausea at this dose is uncommon unless dietary habits change significantly. Your UK prescriber will assess your 16-week results to determine whether 10mg serves as your optimal maintenance dose or if escalation to the maximum 15mg dose would provide additional clinical benefit.

Weeks 17-20 and Beyond: Mounjaro 12.5mg and 15mg Maintenance Doses

For patients requiring maximum therapeutic effect, Mounjaro offers 12.5mg and 15mg weekly maintenance doses [1]. The 12.5mg dose serves as an intermediate option, whilst 15mg represents the highest licensed dose in the UK. Escalation to these levels occurs only after successful completion of lower doses with good tolerability.

Clinical trial data showed average weight reduction of 20.9% at the 15mg dose over 72 weeks in the SURMOUNT-1 trial—the highest efficacy observed in any obesity pharmacotherapy study to date [2]. These maximum doses produce the most profound appetite suppression and metabolic improvements, though individual response varies considerably.

Once you reach your maintenance dose (whether 10mg, 12.5mg, or 15mg), you'll continue weekly injections indefinitely to sustain weight loss [1]. Discontinuing Mounjaro typically results in gradual weight regain, as the medication does not cure the underlying metabolic factors driving obesity. Your Cured Pharmacy prescriber will conduct regular reviews to monitor ongoing efficacy, side effects, and whether dose adjustments are needed based on your evolving clinical picture.

Long-Term Maintenance and Dose Optimisation

Maintenance therapy with Mounjaro is designed for long-term use, with clinical trials demonstrating sustained efficacy and safety for at least 72 weeks [2]. Some patients find their optimal dose is lower than 15mg—there's no requirement to escalate to the maximum if you've achieved your goals at a lower level. Your UK prescriber will work with you to identify the minimum effective dose that maintains your weight loss whilst minimising side effects and treatment costs.

Scientific References

  1. Electronic Medicines Compendium. (2023). Mounjaro 2.5 mg solution for injection in pre-filled pen - Summary of Product Characteristics (SmPC). Retrieved from https://www.medicines.org.uk/emc/product/14881 [accessed 13 August 2026]
  2. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., et al. (2022). Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine, 387(3), 205–216. https://doi.org/10.1056/NEJMoa2206038 [accessed 13 August 2026]
  3. Wilding, J. P. H., Batterham, R. L., Calanna, S., et al. (2021). Once-Weekly Semaglutide in Adults with Overweight or Obesity. New England Journal of Medicine, 384(11), 989–1002. https://doi.org/10.1056/NEJMoa2032183 [accessed 13 August 2026]
  4. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 13 August 2026.
  5. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 13 August 2026.
  6. NHS England. (2026). Weight management injections. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/ Accessed 13 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication. Mounjaro is a prescription-only medicine and must be prescribed following an online consultation with a UK prescriber at Cured Pharmacy.

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"Brilliant. Lost 4 stone on mounjaro no side effects at all. Cured pharmacy are excellent. Always helpful pens sent out quickly always comes with needles and sterile wipes. If you want to go on GLP-1 go to cured pharmacy. So professional. Thank you cured pharmacy you changed my health and well being."

Ann-Marie

"I absolutely love this product, I have been using 2.5mg as maintenance dose and have managed to control my weight without any side effects and can still eat well balanced meals. The pharmacy is very efficient friendly and helpful I would not purchase from anywhere else."

Sacha W.

"So far I'm really impressed by my results it's crazy cause I'm not snacking like how I used to do and I see my face slimming down already and it's only been 2 and a half weeks. Can't wait to give my feedback in 5 months time thank you cured pharmacy."

Kimberly G.

"Mounjaro has corrected my hormonal weight gain during menopause. I am using it now to maintain that balance. The results for me have been exceptional!"

Jennifer

"Great really helps cure those nasty habits can't wait for my next mounjaro pen."

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Faq

How long do I stay on each Mounjaro dose?
You remain on each dose level for exactly four weeks before escalating to the next strength, allowing your body to adapt and minimise side effects. Your UK prescriber may extend a dose level if needed based on tolerability.
Can I skip the lower doses and start at 10mg or 15mg?
No. The MHRA-approved dosing schedule requires starting at 2.5mg and escalating gradually every four weeks to reduce gastrointestinal side effects and ensure safe treatment. Skipping doses significantly increases the risk of severe nausea and vomiting.
What happens if I miss a dose during the escalation phase?
If you miss a dose and it's been less than four days, inject as soon as possible then resume your normal weekly schedule. If more than four days have passed, skip that dose and inject on your next scheduled day. Contact your Cured Pharmacy prescriber if you miss multiple doses, as you may need to restart at a lower strength.
How do I know when to stop escalating and stay at my current dose?
Your UK prescriber will assess your weight loss progress, side effect profile, and clinical goals at each dose level. If you've achieved satisfactory results with good tolerability, you may remain at your current dose rather than continuing to escalate.
Is the mounjaro dosing schedule UK the same as in other countries?
Yes. The MHRA-approved dosing schedule in the UK follows the same four-week escalation protocol validated in international clinical trials, starting at 2.5mg and increasing by 2.5mg increments every four weeks.
Can my dose be reduced if I experience side effects?
Yes. If you experience persistent or severe side effects at a higher dose, your UK prescriber may recommend reducing to the previous well-tolerated dose level. Some patients achieve excellent results at lower maintenance doses like 7.5mg or 10mg.
How much does Mounjaro cost at each dose level at Cured Pharmacy?
Mounjaro starts from £124.99 at Cured Pharmacy, with final pricing determined by your prescribed dose following your free online consultation with a UK prescriber. We guarantee the lowest prices in the UK with transparent upfront costs.
What's the difference between Mounjaro dosing and Wegovy dosing schedules?
Mounjaro (tirzepatide) escalates in 2.5mg increments every four weeks up to 15mg maximum, whilst Wegovy (semaglutide) increases monthly from 0.25mg to 2.4mg maximum. Mounjaro's dual GIP/GLP-1 mechanism typically produces greater weight loss than Wegovy's single GLP-1 pathway.
What is the correct Mounjaro dosing schedule in the UK?
The Mounjaro dosing schedule starts at 2.5mg weekly for 4 weeks, then increases to 5mg for 4 weeks, continuing up to a maximum of 15mg depending on your response and tolerability. Cured Pharmacy provides full dosing guidance with every prescription to ensure safe and effective treatment progression.
How do I follow the Mounjaro dosing schedule if I miss a weekly injection?
If you miss a Mounjaro dose and it's within 4 days of your scheduled injection, take it as soon as you remember then resume your normal weekly schedule. If more than 4 days have passed, skip the missed dose and continue with your next scheduled injection, and Cured Pharmacy pharmacists can advise if you need support.
Can I stay on the 2.5mg Mounjaro dose instead of following the schedule?
The 2.5mg dose is designed as a starter dose to help your body adjust, and most patients need to follow the full Mounjaro dosing schedule to reach therapeutic levels for effective weight loss. Cured Pharmacy clinicians will review your progress and recommend the appropriate dose escalation based on your individual response and tolerance.
Does the Mounjaro dosing schedule price increase with each dose?
Yes, Mounjaro prices increase with each dose strength in the dosing schedule, starting from £124.99 for 2.5mg up to £267.00 for 15mg. Cured Pharmacy offers transparent pricing at every dosing level with no hidden fees, and you can use code Weightlossnew for £20 off your first order.
Is the Mounjaro dosing schedule the same as Ozempic or Wegovy?
No, Mounjaro has a different dosing schedule because it contains tirzepatide rather than semaglutide, starting at 2.5mg and escalating in different increments compared to Ozempic or Wegovy. Cured Pharmacy prescribers will explain the specific Mounjaro titration schedule and how it differs from other weight loss treatments during your consultation.
How does the Mounjaro dosing schedule work in the UK?
The Mounjaro dosing schedule UK starts at 2.5mg weekly for 4 weeks, then increases to 5mg, 7.5mg, and higher doses every 4 weeks based on your response. Cured Pharmacy guides you through each dose escalation with prescriber support to ensure safe and effective weight loss.
Can I skip a dose in my Mounjaro schedule?
If you miss a Mounjaro dose and it's within 4 days, take it as soon as possible. If more than 4 days have passed, skip that dose and resume your regular schedule. Cured Pharmacy prescribers can advise on adjusting your dosing schedule if you experience disruptions.
Does Cured Pharmacy supply all Mounjaro dosing strengths?
Yes, Cured Pharmacy stocks every Mounjaro dose from 2.5mg to 15mg to support your complete dosing schedule. You can order each escalation dose as needed or set up a subscription for automatic delivery aligned with your dosing timeline.
Is the Mounjaro dosing schedule the same as Wegovy?
No, Mounjaro follows a different dosing schedule to Wegovy with higher maximum doses and a 4-week escalation plan. Cured Pharmacy can help you switch between treatments and adjust your schedule if transitioning from Wegovy to Mounjaro.
How long should I stay on each Mounjaro dose?
Each Mounjaro dose should be maintained for at least 4 weeks before escalating to allow your body to adjust and assess weight loss progress. Cured Pharmacy prescribers review your response at each stage and may recommend staying longer on a dose if needed for optimal results.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 13 August 2026

Last updated on 13 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 13 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (13 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


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