Zepbound is tirzepatide, given as an injection once a week, and licensed for weight management. If you have read about Zepbound in US-based coverage, the tirzepatide product available to you locally may be marketed under a different name, such as Mounjaro. Your prescription, pharmacy label, and patient information leaflet will tell you which name applies where you are, and your pharmacist can confirm this if you are unsure.

It is worth keeping this in mind if you search online for schedule advice, since much of what is written about Zepbound assumes the US product name and packaging. The weekly cadence itself is a stable fact wherever tirzepatide is sold, but the exact wording of dosing instructions belongs to the leaflet for your own product, not to whatever you find first in a search result.

A weekly injection sounds simple to remember, but a written record still has real value. Life changes week to week: travel, work patterns, illness, or simply a busy day can shift when an injection actually happens compared with when it was planned. A record turns a vague sense of I think I've been fairly consistent into something you and a prescriber can actually look at.

What to log each week

A simple weekly entry can include:

  • The day of the week you intended to inject
  • The actual day and approximate time you injected
  • The number of days since your previous injection
  • Anything unusual about that week, such as travel or a schedule change

Keeping this in a notebook, spreadsheet, or tracking app is a matter of preference. What matters is that entries are dated and consistent enough to compare over time.

Noticing drift

Over several weeks, look back at your log rather than relying on memory. Has your injection day gradually moved later in the week? Has the gap between injections varied more than a day or two? This kind of pattern is easy to miss in the moment but visible once it is written down, and it is useful information to bring to a review appointment.

Drift often happens gradually rather than all at once. A Monday injection might slip to Tuesday one week, stay there the next, and then slip again. None of this needs to be a source of worry, but it is exactly the kind of pattern that is hard to reconstruct from memory a month later and easy to see in a simple log. Writing the actual date next to the intended day, every single week, is what makes this visible.

It can also help to note the reason for a shift when you remember it, such as travel, a change in work shift, or simply forgetting until later in the day. You are not trying to justify anything to yourself. You are building a record that explains itself if you or a prescriber look back at it later.

Reviewing the pattern before an appointment

Before a follow-up appointment, it can help to scan back over your log and summarise it in a sentence or two: for example, noting whether your injections have stayed within a day or two of the planned date, or whether there was a specific period where the schedule became irregular. This kind of summary is more useful to a prescriber than handing over a long list of raw dates with no context, though keeping the raw dates as backup is still worthwhile.

If a day is missed or unclear

This page is about keeping a record, not about deciding what to do if an injection is missed, delayed, or the schedule becomes unclear. Those questions are answered in the patient information leaflet supplied with your specific medicine, and your pharmacist or prescriber can advise on your individual situation. Record what happened factually, including the date of the gap, so the conversation is grounded in specifics rather than guesswork.

It can be tempting to skip logging a week that did not go to plan, especially if it feels like an admission of forgetfulness. Resist that instinct. A gap in your written record is often more confusing later than an honestly recorded missed or delayed week, and prescribers are generally far more interested in an accurate picture than a tidy one.

Using the record beyond appointments

A weekly schedule log has value even outside formal reviews. It can help you notice, for example, that certain weeks of the month are more likely to disrupt your routine, such as periods with irregular work shifts or frequent travel. Spotting this kind of pattern in your own life is a personal planning exercise, separate from any treatment decision, and it can make it easier to protect your intended injection day in future weeks.

Keeping a plain, honest record of your actual schedule, rather than the schedule you intended to follow, is the most useful thing you can bring to a follow-up conversation.