Mounjaro 2.5mg - When to move to 5mg?

Staying at the starting dose for an extended period while continuing an exercise routine is a less common approach but makes sense if results are consistent and side effect burden is low. The case for not titrating up is straightforward: if the current dose is still delivering and tolerance is good, there is no reason to change. Dose increases usually come when the current dose stops delivering results, not on a fixed calendar schedule.

The signal to move up is inadequate suppression, not a timeline. If food noise is gone and appetite is managed at 2.5mg, there's no reason to increase - the dose that controls symptoms is the right dose. Most people find their effective dose and stay; the question isn't 'when do I go higher' but 'am I controlled where I am.'

Four weeks at 2.5mg is the floor before stepping up - appetite creeping back by day 6 is the usual signal to move to 5mg.

Three weeks at 2.5mg with only the day-of nausea is a clean tolerability profile. The standard is to stay at 2.5 as long as weight is moving and the side effect load is manageable - the escalation to 5mg is indicated by plateau, not timeline. If you're dropping and not suffering, staying at 2.5 is the right call. When stalling is the signal to consider moving up; the body tells you when. The harder side effect profiles at 5mg hit some people pretty hard, so there's no rush if 2.5 is working.

Three weeks at 2.5mg with only mild nausea is a good tolerance profile - standard next step is 5mg at the 4-week mark.

90% it's the Mounjaro causing what you're experiencing is a reasonable read at week 4. The double jump from 2.5 to 5 is where most people feel it most - nausea and fatigue tend to peak in weeks 2-3 at the new dose before settling. Sticking at 5 for a full 4 weeks before considering 7.5 is the right pace. How are the side effects tracking day to day?

Same story here. My first 2.5mg mounjaro shot back in December hit me hard with side effects. Dropped down to 1.25mg after that, basically microdosing, and still lost over 5kg that month. Went back up to 2.5mg in April and haven't touched it since, no reason to raise it while it's still doing the job. Started at 88.5kg, sitting at 70kg now.

Starting out, appetite reduction usually comes and goes those first few weeks, so extra willpower is needed to cut back on food.
Takes time for the medication to build up enough in your system to really start helping.

In my case, across the first four shots at the smaller amount, decent weight loss came through a combination of willpower and occasional dips in hunger.

Now that I have stepped up to the bigger shots, starting with shot number five, appetite control has genuinely improved.
I have since taken several more at that higher amount with another coming up shortly.

Where this medication really shines once it kicks in is during actual meals.
It tells your body sooner that you have had enough, so you naturally stop eating.
Those skipped calories at every meal accumulate steadily, and the weight comes off.
Plus hunger does not return as quickly between meals either.

My approach has just been eating the foods I already like, while trimming back on carbs somewhat.
But this medication has me eating smaller portions each meal regardless, and those calories add up over the weeks.

I have steered clear of any kind of fad diet where I am forcing down food I do not actually enjoy.

Been on this a full year and only dropped about two pounds monthly... not great results honestly. Planning to switch over to the dual-action medication soon. As for the nausea though, mine hit hardest right after that very first dose. After that first shot it eased off noticeably. Feeling queasy for several days straight is completely typical.

Did you begin on 2.5 already? Each dose needs one month at minimum. Whether you linger or move on depends on if it still works: satiety, quiet food noise, eating inside your deficit. Standard practice moves up after a month since 2.5mg is a loading dose, yet for some, myself included, it works well, and they stay weeks or months, a few even finishing their entire journey there. You can't know how you'll react to 2.5mg before taking it, and afterward it's still uncertain whether to stay or climb before the third or fourth week, since blood levels keep rising across the opening weeks of each dose. Same at 5mg and beyond. So sure, people do a month on 2.5 and longer at 5, but nobody can predict your case. I'd just start and watch.

Keep 2.5mg, then prioritise protein/macros plus lifting. Given your height and weight you might need more calories. A pound weekly is excellent progress. Eighteen months into Mounjaro, mostly on 2.5mg. Save 3.3 or 5mg until you truly need it.

I wouldn't lower the dose yet. Mounjaro has a 5 day half life, so hunger might come back over the next two days. Week 1 tends to hit hardest since you go from nothing to drug in your body, and week 2 and after at 2.5mg feel weaker. If you're still struggling after 4 weeks, then think about dropping or stretching to every 8-10 days. My own week 1 was strong and 1200 calories a day was tough. Week 2 felt like no drug at all. Weeks 3 and 4 were better, I ate 1200-1400 with no cravings. I stayed at 2.5 and week 5 was my strongest yet, some days I barely got 600-800 in, obviously not great. Week 6 just began and I'm giving 2.5 one more week. Today my appetite is already better. Things bounce around until you reach steady state, which takes 4-5 weeks.

Side effects can be managed and even prevented. Five months in, fatigue is the only thing I've felt since day 3. Evening magnesium glycinate plus lots of water has, I believe, prevented constipation. Stay on the lower doses as long as they work before moving up. I spent about two months on 2.5mg first. Going slow lets your body adapt better. If you're diabetic, this really helps you lose. I exercised and dieted but couldn't lose without Mounjaro. For non-diabetics I imagine loss is even easier. It cuts cravings and hunger enormously, yet you still need self control for best results. I'm stalling now because of alcohol.. Daily walks with no drinking make the weight fly off.

On my third or fourth dose at 5mg myself. Been on metformin for nearly twenty years now. No issues there, and honestly haven't run into any side effects from mounjaro either.

Going from a 2.5 dose up to the 5mg mark hit me pretty hard side-effect wise, though obviously that varies a lot and plenty of people barely notice it. To give some background, I weighed around 215 lbs and got the type 2 diabetes diagnosis back in January, and Mounjaro was prescribed for that, not specifically for weight. By the time I bumped to 5mg I'd already dropped to 165 lbs after eight weeks at the starter dose, my blood sugar was so out of control it was driving weight off on its own, and that's probably what made the higher dose hit so hard. It got bad enough that I went out to dinner and could only manage a few bites of salad before I was stuffed and nauseous. My doctor returned me to the 2.5 dose once I reported it.