Taking Mounjaro Without a Gallbladder: What You Should Know

Mounjaro (tirzepatide) is a once-weekly injectable prescription medicine that works as a dual GIP and GLP-1 receptor agonist. Among its commonly reported effects is slower gastric emptying — a change in how quickly food moves through the digestive system. Because bile, which aids fat digestion, is normally stored and released by the gallbladder, changes to digestion can interact with how the body manages bile acids after cholecystectomy (gallbladder removal).

What the research and prescribing information say

GLP-1 receptor agonists as a class have been associated with gallbladder-related events, including gallstones and inflammation, in people who still have a gallbladder. For people who have already had theirs removed, this specific risk no longer applies in the same way — however, digestive side effects such as nausea, loose stools, and changes in fat tolerance may be experienced differently. According to information published on the electronic Medicines Compendium, gallbladder-related events are listed among the effects to be aware of with tirzepatide; your prescriber will weigh this alongside your personal history when deciding whether and how to prescribe. You can review the full prescribing information on the electronic Medicines Compendium (eMC).

What your prescriber needs to know

Being open with your prescriber about your surgical history — including cholecystectomy — is important before starting or continuing any prescription medicine. This is not unique to Mounjaro; it applies across medications. If you are already taking Mounjaro and have not yet mentioned your gallbladder history to your prescriber, it is worth raising at your next appointment or sooner if you have any concerns.

For broader context on how Mounjaro works and what to expect on your journey, the Mounjaro overview hub covers the key topics in one place. You may also find it useful to read about Mounjaro and gallbladder-related considerations in more detail, or about why keeping your prescriber informed matters.

For people without a gallbladder, paying attention to digestive side effects — and keeping a clear record of them — can be especially useful when discussing your progress with your prescriber.

GLP Trackr's side-effect and symptom tracking lets you log how you feel after each dose: nausea, digestive discomfort, changes in energy, and more. Over time, the app builds a pattern from your entries, so instead of trying to recall how things felt three weeks ago, you have a clear, dated log to bring to your appointment. This kind of record — what changed, when, and how often — can give your prescriber much more to work with than memory alone.

Alongside symptom tracking, the app's food logging (including an AI photo scan feature) makes it easy to monitor what you're eating, which can be relevant when digestive tolerance varies. If your prescriber has suggested paying attention to fat intake or meal composition, logging your food gives you a real picture of your day-to-day habits.

GLP Trackr also generates a doctor report — a summary of your tracked data — which you can bring directly to consultations, making those conversations more informed and efficient.

If you experience severe, persistent, or unusual abdominal pain, vomiting, or any symptom that concerns you, contact your healthcare professional promptly. GLP Trackr is a tracking tool and is not a substitute for clinical advice — any decision about your suitability for Mounjaro, or how your treatment should be managed, belongs with your prescriber.

You might also find it helpful to read about tracking your progress visually as another way to capture your journey over time.

Start logging your symptoms and meals with GLP Trackr — available free on the App Store and Google Play, with a 7-day trial to explore everything the app offers.