Zepbound is tirzepatide, given as an injection once a week, and licensed for weight management. The same active ingredient is also sold as Mounjaro. If you know the name Zepbound from American coverage, check your own patient information leaflet and prescription, since the tirzepatide product available where you live may be marketed under a different name.

It is worth confirming which product and leaflet apply to you before relying too heavily on side-effect descriptions written for a specific US brand and packaging. The underlying ingredient and its general side-effect categories are consistent, but the exact wording and warnings in your own leaflet are the ones that matter for your situation.

Digestive symptoms, particularly nausea, are among the most commonly discussed effects of tirzepatide. They are also easy to describe vaguely, which limits how useful a note is later. I felt sick this week tells a prescriber very little compared with a record that includes timing, severity, and pattern.

Some people notice nothing worth mentioning at all in a given week, and that is a perfectly good entry in itself. A log that occasionally reads nothing notable this week is still a useful record, since it tells a prescriber that a symptom-free stretch existed between other entries, rather than leaving a gap that is hard to interpret later.

Recording nausea with useful detail

Rather than a single daily rating, try to capture:

  • The day and approximate time nausea started, relative to your injection day
  • How long it lasted, and whether it came in waves or was constant
  • Whether it was accompanied by vomiting, reduced appetite, or an inability to finish meals
  • Anything that seemed to make it better or worse, noted as an observation rather than a firm conclusion
  • Whether you were able to drink fluids normally

Other digestive symptoms worth logging

Constipation, diarrhoea, bloating, reflux, and abdominal discomfort are also worth recording with the same level of detail: frequency, severity, and timing relative to your injection schedule. A pattern that repeats each week around the same point in your cycle is more informative to a prescriber than an isolated bad day.

Why timing matters

Symptoms that cluster shortly after an injection, versus symptoms that appear randomly through the week, may prompt different questions from a prescriber. Recording timing accurately, even if you are unsure what it means, gives them more to work with than an overall impression.

It can also help to note what else was happening around the same time: a change in meals, alcohol, travel, illness, or a missed or delayed injection. You are not trying to draw a conclusion from this. You are simply giving a prescriber the surrounding context, since digestive symptoms rarely have a single obvious cause and a fuller picture is more useful than an isolated symptom on its own.

Keeping the log manageable

A symptom log does not need to capture everything, every day, forever. A useful middle ground is a quick daily note during a week where something changed, and a briefer weekly summary the rest of the time. What matters most is that entries are dated and specific enough to be useful later, not that you have written something every single day without fail.

A quiet stretch with nothing to report is still worth a short entry, since it tells a prescriber that symptoms genuinely settled during that period rather than leaving an unexplained gap in your notes.

When to seek help rather than wait to log it

Some symptoms need medical attention promptly rather than being noted for a future appointment. Seek urgent care for severe or persistent abdominal pain, repeated vomiting, inability to keep fluids down, signs of dehydration, fainting, or symptoms of a severe allergic reaction. For symptoms that are troubling but not urgent, contact your prescriber rather than waiting for a routine review, and bring your notes with you.

A detailed, dated log does not replace clinical judgement, but it does make that judgement easier to apply. A prescriber who can see exactly when a symptom started, how it has changed, and what else was happening around the same time is in a much better position to help than one working from a general description offered weeks after the fact.