What are Mounjaro Steps?
A comprehensive clinical overview of the structured titration schedule and intermediate maintenance dosing protocols used in UK practice.
Primary Titration Protocol
Step 1
2.5mg
The 2.5mg initiation dose allows the body to acclimatise over 4 weeks, helping to minimise gastrointestinal effects. While primarily a stepping stone, some individuals may maintain on this dose subject to prescriber approval.
Step 2
5mg
The 5mg dose is the first active therapeutic step. Reached after 4 weeks of initiation, it frequently serves as a highly effective long-term maintenance dose.
Step 3
7.5mg
The 7.5mg step is an intermediate escalation. It is utilised to safely increase therapeutic effects if clinical targets are not fully met on 5mg, and can also be used for long-term maintenance.
Step 4
10mg
The 10mg dose represents a higher therapeutic tier. Achieved after a minimum of 12 weeks of titration, a significant proportion of patients maintain successfully on this step.
Step 5
12.5mg
The 12.5mg step acts as a careful transition toward the maximum dose. It is used to monitor patient tolerance and can be maintained if it delivers the necessary clinical results.
Step 6 (Max)
15mg
The 15mg dose is the maximum recommended maintenance step. It is designed to deliver peak clinical efficacy for patients who require and safely tolerate the full titration protocol.
Manufacturer Titration Timeline
1
Initiation Phase
2.5mg Dosage
Weeks 1 – 4
2
First Escalation
5.0mg Dosage
Weeks 5 – 8
3
Intermediate Titration
7.5mg Dosage
Weeks 9 – 12
4
Standard Therapeutic
10.0mg Dosage
Weeks 13 – 16
5
Intermediate Titration
12.5mg Dosage
Weeks 17 – 20
6
Maximum Phase
15.0mg Dosage
Weeks 21+ (Maintenance)
Detailed Dosing FAQ
What is the purpose of Step 1 (2.5mg)?
The 2.5mg dose is a mandatory starting point designed for medication initiation. Over this four-week phase, the body acclimatises to the treatment, which helps minimise potential side effects. While generally a stepping stone, some patients may remain on this dose for maintenance based on individual prescriber guidance.
How do Mounjaro dosing steps increase?
According to manufacturer guidelines, doses increase in 2.5mg increments. Each step is typically maintained for a minimum of four weeks, allowing a prescriber to evaluate tolerance and clinical efficacy before approving an escalation to the next step.
Can I stay on an intermediate dose like 7.5mg or 12.5mg?
Yes. Clinical data confirms effective maintenance can be achieved at various intermediate steps, including 2.5mg, 7.5mg, or 12.5mg, rather than just the standard 5mg, 10mg, or 15mg tiers. However, because this is often subject to individual pharmacy policies, you must discuss remaining on an intermediate dose with your clinical prescriber.