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Marylebone Diagnostic Centre > Our Latest Blog Posts > Health > Can Mounjaro Affect Your Liver? The Tests That Tell You the Truth
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Can Mounjaro Affect Your Liver? The Tests That Tell You the Truth

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By Tharb Faisl

As the popularity of Mounjaro (tirzepatide) rises in London and globally, so do the questions about its safety – particularly when it comes to liver health.

Whether you’re using Mounjaro to manage type 2 diabetes or as part of a weight loss plan, it’s essential to ask:

Book Your Mounjaro Liver Function Test in London Today!

Can Mounjaro damage your liver? And how would you know?

At Marylebone Diagnostic Centre, we offer fast, discreet liver function blood testing in Central London to give you clarity and peace of mind.

Book Your Mounjaro Liver Function Test in London Today!

How Mounjaro May Influence the Liver

Your liver plays a vital role in processing medications, filtering toxins, and managing metabolism. Some users of Mounjaro report elevated liver enzymes, and though rare, cases of liver stress or injury can occur — especially with long-term use or when combined with other medications or alcohol.

That’s why routine liver monitoring is key to staying safe.

Book Your Mounjaro Liver Function Test in London Today!

What Liver Tests Should You Do?

Our Mounjaro Safety Panel includes a comprehensive liver profile:

Test NameWhat It Measures
ALT & ASTEnzymes that indicate liver cell damage
ALP (Alkaline Phosphatase)Levels may rise with bile duct issues or liver inflammation
GGTSensitive to alcohol and medication-induced liver stress
Total BilirubinHigh levels may suggest liver dysfunction or bile blockage
Albumin & Total ProteinReflects the liver’s synthetic function

These results give a complete picture of how your liver is coping – even before you feel any symptoms.

Book Your Mounjaro Liver Function Test in London Today!

Symptoms of Liver Trouble to Watch For

Some signs of liver issues on Mounjaro can be subtle but shouldn’t be ignored:

  • Unusual fatigue or weakness
  • Nausea and loss of appetite
  • Yellowing of the eyes or skin (jaundice)
  • Dark urine or pale stool
  • Itchy skin
  • Pain or swelling in the upper right abdomen

Experiencing any of these? A same-day liver test at Marylebone can rule out complications early.

Book Your Mounjaro Liver Function Test in London Today!

Why Marylebone Diagnostic Centre?

  • Located on Baker Street, Central London – near Harley Street, Kings Cross & Mayfair
  • Fast, discreet liver function tests — same-day appointments available
  • Option to add other markers like kidney, thyroid, or GLP-1 panels
  • Results within 24 hours, plus expert guidance on next steps
Marylebone diagnostic centre main

Whether you’re proactively monitoring or managing symptoms, our team is here to support your long-term health on Mounjaro.

July 2025 Update: What New Research Says About Mounjaro & the Liver

As of July 2025, several new studies have provided more insights into how Mounjaro (tirzepatide) may impact liver health.

Mild liver enzyme rises are still the most common finding.
Recent papers in The Journal of Diabetes & Metabolism reviewed over 5,000 patients. They found that while small increases in ALT and AST can occur, serious liver injury remains extremely rare.

Fatty liver improvements in many patients.
Interestingly, some people taking Mounjaro for weight loss showed better liver ultrasound results. This is likely because weight loss itself reduces liver fat.

Who needs to be cautious?
Patients with pre-existing liver disease (like cirrhosis or hepatitis) are still advised to have regular blood tests. This ensures any subtle changes are picked up early.

At Marylebone Diagnostic Centre, we continue to monitor these trends closely. Our Liver Function and eGFR panels give you quick answers – often with same day results in London.

If you have questions or want personalised advice, we’re here to help.

Book Your Mounjaro Liver Function Test in London Today!

FAQ: Mounjaro & Liver Health

FAQ with Drop Arrows
Does Mounjaro cause liver damage long term?
No evidence currently shows that Mounjaro directly causes serious liver damage over the long term. Most patients only see mild, temporary changes in liver enzymes. However, regular monitoring is still recommended.
Can Mounjaro reverse fatty liver?
It might help indirectly. Because Mounjaro supports weight loss, many patients see a reduction in liver fat. This can improve non-alcoholic fatty liver disease (NAFLD) scores.
Who should have liver tests while on Mounjaro?
Anyone with a history of liver problems, high alcohol intake, or on multiple medications should consider regular liver blood tests.
How often should I check my liver while taking Mounjaro?
Most specialists suggest a liver panel every 3-6 months, especially in the first year.
What liver tests are best for Mounjaro patients?
A basic Liver Function Test (LFT) checks ALT, AST, ALP, and bilirubin. Many clinics, including ours, also look at eGFR to ensure kidneys are healthy too.
What symptoms might suggest liver issues?
Unexplained fatigue, yellowing skin or eyes (jaundice), dark urine, or persistent nausea. If you notice these, get checked promptly.
Can I get same day liver tests in London?
Yes. At Marylebone Diagnostic Centre on Baker Street, we offer same-day liver and kidney tests with rapid results.
Do you also check kidneys alongside liver tests?
Absolutely. We often combine LFTs with kidney markers like eGFR for a complete safety check.
Can I discuss my results with a doctor?
Yes. We provide follow-up consultations to explain your blood tests and guide next steps.
How much does a liver function test cost?
At our clinic, standalone LFTs start from £89, with tailored packages available.
Does Mounjaro always cause liver damage?
No. Most users tolerate it well, but regular testing helps catch issues early.
Can I take this test without a prescription?
Yes. You can book directly through our private clinic.
How often should I monitor my liver?
Every 3 months while using Mounjaro is a safe standard. More frequent testing may be advised based on your results.
Will the test tell me if I need to stop Mounjaro?
Elevated markers might indicate a need for dosage adjustment or consultation with your prescriber. We’ll guide you based on your results.

Don’t Wait for Symptoms – Know Where You Stand

Book Your Mounjaro Liver Function Test in London Today!

  • Central London
  • Same-day service
  • Discreet & expert-led
  • Peace of mind included

Book Now or call +44 7495 970109

Marylebone Diagnostic Centre

73 Baker Street, W1U 6RD

Read More:

➤ FDA – Tirzepatide Prescribing Information
➤ NHS – Liver Function Test