Reta: Split Doses vs. Weekly?

Clean_Dad

Clean_Dad

Active member
Hey everyone,

I'm kinda new to all this, been on reta for about a month and a bit; this is my first venture into peptides. I'm trying to wrap my head around a couple of things.

Firstly, I keep seeing people insist that taking it once a week is the best way, more effective than splitting the dose. I'm not sure I buy it, looking at how the drug works in the body. I get why the clinical trials used weekly doses – it's easier for the participants, and with a half-life of around 6 days, it makes sense. I'm just struggling to see why it'd be better than splitting the dose. Seems like you need a certain minimum dose to get any effect, maybe around 2mg or so. So, anything more than that is probably enough.

If you split the doses, you'd have smaller ups and downs, but the overall amount in your system would be the same (lower peak, higher minimum, same average level). The only thing I can think of is that people "feel" it more with a bigger weekly dose because they get a strong appetite suppression at the beginning of the week (and more side effects), which then fades by the end of the week. Am I missing something? I get that people have different experiences, but I'm trying to figure out how a once-a-week dose could actually be better than split doses, from a scientific perspective. I'm doing split doses myself and am happy, but I'm open to doing whatever works best.

Secondly, I'm seeing people who've used sema or tirz saying they felt hungrier and had more food cravings on reta. Some even go back to tirz or stack both. I know everyone's different, but here's what I don't get...

The reta studies show impressive weight loss without any special diet or exercise. Just the drug itself. So, those people in the trials must've had regular hunger cues, like us, while on reta. But they still lost a lot of weight.

My thinking is that even if reta makes you hungrier than tirz, if you 1) use a high enough dose for 2) long enough, you'll 3) probably lose weight, even with stronger hunger. That's what the studies seem to say. I still get hungry on reta, at the same times as always, but now I only eat one serving of dinner instead of two, and I don't want sweets at all (like grabbing a candy bar at the checkout). It's just taken the edge off, which I like so far.

Anyone have any thoughts on this? Hope you all have a good weekend.

the split-dose vs weekly question gets covered well in the reta dosing & stacking thread
 
With tirz, I feel satisfied after a few bites and don't get hungry often. Appetite is really reduced.

With reta, it's less strong. I feel a slight hunger, an empty feeling, then I find myself at the fridge but nothing looks good, so I skip it.

Someone said tirz reduces appetite, but reta makes you dislike food.

Tirz seems stronger, but reta gets better results. I really don't know why.
 
I kinda heard somewhere that Tirz is like a band-aid, and Reta is more of a fix. The idea is that after a while, you can stop Reta and it'll have fixed your hormones and balanced things out. But Sema/Tirz are for life… but that came from some TikTok docs, so who knows.

You could always try matching the peak levels if you injected daily. If the study was 2mg weeks 1-4, 4mg week 5-8, and 8mg week 9-??, then you could do 0.6mg every day weeks 1-4, 1.2mg daily weeks 5-8, and 1.8mg daily weeks 9-??

But that daily schedule makes assumptions about how you burn through stuff. If you want study results, you gotta do the study. If you change it, expect different results. Keep us posted if you try it. You could be onto something.
 
I see the dosing schedule like my drinking habits, back in the day. If you want to get hammered (maximum weight loss), do you sip a shot every few days or down several at once?

Then there's the old diet thinking. Does varying your intake trick your body out of starvation mode? People report appetite changes when dosing weekly.

It's annoying how many people want to shut off hunger with GLPs. We're not robots; those folks titrate too quickly and use up all their options.

I like feeling my GLP working. Dosing once a week, I feel it strong early on; later I eat more. It worked at 5mg to reach my goal (5mg Tirz). No diet, no exercise, no scale... just time. I know that's rare, but the scale was a trap causing PTSD. I'd have increased the dose faster with bad scale days. (-75lbs/10 months)

About your Reta observations, remember study people don't stack or use "gray market" options. We have plenty of choices! Many of us are good at navigating those choices! Sema and Tirz focus on weight loss, while Reta attracts people who want weight loss and fitness. People say "cut" with Reta often, which I never saw with other GLPs.
 
I can't explain the mechanism, but I was split dosing when I hit a plateau on Reta at 12mg. I switched to once a week and started losing again. I lost about 10 more pounds before plateauing again. But I lost 90 pounds split dosing in about a year. I prefer split dosing for how it feels.
 
I take 3mg on Mondays and 4mg on Thursdays to get me through the weekend when I get cravings. Once a week, I'd be more likely to cheat on Saturday or Sunday.
The split stops me from buying a dozen donuts, a pizza, and a six-pack of beer to watch the game on Sunday.
 
Thanks. That's a cool tool. When I use the same doses but change how often I take them during the week, I still see the same thing - similar average levels per week, but the peaks and valleys change.

Maybe it's like some said about weekly doses giving you a stronger feeling that fades, and that change is good. Lots of hormones are released in pulses to keep receptors sensitive.

I guess I'll keep looking into it. Thanks!
 
That's the question! More info on those mechanisms would be good. I think steady levels are better, no nausea, fast heartbeat, etc.
But if letting it drop off is important, I'd like to know.

I'm doing Tirz and Reta every 3 days, but on different days, so they peak at different times.
 
I just saw a study on how much builds up with 1x weekly at doses. Higher doses mean more overage in the body. It doesnt clear but jumps to higher levels in its peaks and valleys. And how much body fat you have changes it, more BF holds onto the dose longer.
 
I see that as a good thing about reta, helping you build better eating habits. I've been on tirz for 15 months and was going to switch to reta for maintenance, but tirz lets me eat "bad" food too much, which is a crutch.
 
Thanks! Super real. Thanks!

I know I don't have much experience to talk about this, but I want to find answers. I've been reading lots of scientific stuff, including emailing about 10 researchers from 10 different reta articles, so I'll share something soon on the weekly vs twice weekly thing.

Someone said they go to the fridge but nothing looks good - I've had that happen. I think those small things can help, instead of just shutting down appetite.
 
I know I should move on, but after more digging, here's what I found about semaglutide in published trials, models, and results.

First, a Phase 2 trial used daily semaglutide, 0.4 mg/day (2.8 mg/week total). It found a −13.8% weight loss at 52 weeks.

Second, a Phase 3 trial used weekly 2.4 mg/week, which found −14.9% weight loss at 68 weeks.

The FDA's clinical review said:

2. 4 mg once weekly was seen as about the same as 0.4 mg once daily (2.4 vs 2.8 mg/week).
3. Modeling said that even with a larger dose, steady-state Cmax would be similar with weekly 2.4 mg versus daily 0.4 mg because daily doses add up, and weekly doses lower average concentrations.
4. The trade-offs were similar results but better tolerability for weekly dosing: about 1% less loss, and about 2% fewer GI problems and dropouts.

The results showed a bit more weight loss with weekly, but that trial was 16 weeks longer (68 vs 52 weeks) and used a 0.4 mg lower dose (2.4 vs 2.8 mg) - go figure. Both trials used people without diabetes.
 
Following this thread with interest.
Clean_Dad said:
I see that as a good thing about reta, helping you build better eating habits. I've been on tirz for 15 months and was going to switch to reta for maintenance, but tirz lets me eat "bad" food too much, which is a crutch.
Click to expand...
Makes a lot of sense. Seems like Reta might be better for the long game.
 
For those who are experiencing decreased libido, it seems to be a possible side effect.
LillyLover_88 said:
My heart rate hasn’t changed, but there is a slight loss of libido. Its likely due to reduced dopamine production in the gut.
Click to expand...
 
I hear you about the cost. And it's not just the money, it's the mental cost of having to rely on something forever. I'm hoping reta can help me get to a point where I don't need anything.
 
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