Stacking GLP-1s... too much?

Hong Kong Yanpep International
I've also seen people talking about stacking sermorelin and ipamorelin. Has anyone tried that while coming off TRT to boost T levels? I'm curious if it would help with energy too, which might help with the hunger indirectly.

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Exactly right. It's not about the medication doing all the heavy lifting. Once you train yourself to not eat past full and you actually know better? That's the real win. The shot helps but the habits are what stick with you.
 
Just curious - what were the warning signs that told you too much was happening? I've done three shots, spaced two days apart, each 250 micrograms. Haven't noticed a huge shift yet.
 
Quitting smokes was brutal for me back in 2010, the weight just packed on. No GLP-1 option then. Patches helped me taper off, and eventually one day it just clicked. That breakthrough moment will happen for you too.
 
High-dose GLP-1 stacking significantly slows gastric transit, which compounds constipation risk - especially if you're adding anything that slows motility independently. The bowel regimen approach that surgical teams use (senna + MOM combination) is relevant preventively at 15mg+ even outside the opioid context. If the persistent hunger at that dose level is real, the question is also whether an actual serum level check would confirm the pharmacokinetic reality of stacking two GLP-1s.
 
The move from OMAD to two meals on GLP-1 is common - the capacity for one compressed sitting just is not there under active suppression. Two meals is where most people land. On stacking, appetite effects compound more than linearly so the meal structure adjustment matters even more.
 
The exact agonist ratios are measured in binding affinity percentages not really comparable across compounds. Sema is pure GLP-1 agonist. Tirz is roughly equal GLP-1 and GIP. Reta adds glucagon receptor on top of both. The 'less GLP-1 in Reta' framing is accurate but the glucagon receptor adds a different mechanism, not just less of the same thing.
 
The cagri plus sema combo working where tirz didn't is a useful data point when you're trying to figure out which mechanism actually suits you. Some people just have a better response to one pathway than another. Have you tried adding tirz back at a smaller dose to see if the combination changes anything?
 
The persistent hunger at high combined GLP-1 doses is worth investigating at the receptor level rather than just adding more - tolerance is possible at that volume, but the more likely explanation is that something else is driving the hunger that isn't GLP-1 mediated. Worth reviewing protein intake, sleep quality, and cortisol patterns before assuming the medication is the problem.
 
Such interesting replies here! This journey started on a prescribed branded medication. The first couple months at smaller amounts, nothing really registered. Things kicked in at a moderate amount, which is the current level. Now stacking that with a second compound, taken as a split dose across the week, plus a small third dose midweek.

Works well here.

Hard to fully separate the effects, but the first compound seems to bring stronger appetite suppression, matching what others describe. The second just operates differently. Zero interest in eating entirely isn't the goal here. Feeling nauseated just picturing a meal isn't desired either. Just wanting the food noise gone is really the target, and this combination delivers that. Also not wanting to lose a huge amount of muscle mass, so protein stays a priority. Being able to eat matters here.

Normally there's a fierce sweet tooth, but recently a coworker brought a box of rich pastries into the office. Had one, tasted incredibly sweet, genuinely enjoyed it, but had zero desire for a second. That's exactly the effect here.

Both compounds rate a ten out of ten personally. Haven't tried the third major option yet. Tempted to switch over, but restarting from a beginner dose feels like too much effort right now.
 
Wow, surprising that a fairly high weekly reta amount still left you that hungry. Currently running a very low combined amount of cagri and reta myself. Thinking about adding a small tirz amount into the mix too. From my own experience, this drug class alongside cagri tends to create a nice synergy where they reinforce each other, so it's odd that isn't happening for you. Hopefully the adjusted cagri amount works out without too many side effects, since that compound tends to hit pretty hard. Not planning to increase either dose personally since side effects just haven't shown up yet.

Worth watching those side effects closely though. Combining reta and cagri tends to stack the gastrointestinal effects into something more intense. So going that route might mean scaling back the reta amount a bit.

Definitely not matching my own experience though, still eating fine here with strong suppression, just filling up fast. Only real thing is a persistently dry mouth, drinking water constantly and it barely helps. Been at this a while now though, so it's just background noise at this point.
 
Appreciate you sharing details on higher-dose tirz (plus everything else), given how little formal research exists, anecdotal reports online are pretty much the only resource out there for higher amounts and stacked combinations of these weight-loss peptides, and a few of us dealing with severe obesity or poor GLP response don't have much real science guiding our choices.

60mg of tirz doesn't strike me as wildly extreme once you line it up against that 16mg semaglutide trial. Scale it proportionally, 2.4mg to 15mg, and you'd land near a 100mg tirz equivalent, though I'd guess your body would need serious desensitization before side effects stopped being a major issue up there. Even holding 15mg tirz plus 6mg reta, one extra milligram of either sends my skin absolutely crawling, so that's firmly my ceiling.
 
Had RNY surgery back in 2003 and tirzepatide's genuinely nailed the weight loss side for me as well. Sitting at 17mg currently, stepped down recently from 20mg. Also stacking with elora these days. Ran brief stints stacking sema and cagri before that too.

Since you've already hit your target, this really sounds like a maintenance question more than anything. There's just not much solid clinical direction out there on the best way to hold steady long-term. Most people end up winging it, trying different combos and seeing what actually sticks.

In your shoes, I'd lean toward layering in a small amount of cagri or sema instead of pushing tirzepatide any higher than 15mg. Might also be worth dialing in your diet over the next couple months to close that last 10 pounds. Even if nothing's consciously changed on your end, worth double-checking for any small shifts. Only reason I'd steer away from raising the tirzepatide dose is I've come to believe the returns shrink at higher amounts while side effects just get worse. That's honestly what I'm currently blaming my terrible sleep on. Trying to work my way back down to 15mg myself.

Good luck!
 
Unsure whether you mean a GLP paired with a second GLP, or combos broadly. Kudos for starting a thread with some substance as a newbie. My rule of thumb is that fewer compounds beat more, provided it works, and extra peptides hopefully cost little. Sema got added onto my weekly 18mg Reta to cut food noise and push through a stall (creatine-driven, not real). I have plenty of most things to try; I chose Sema because it's popular and I hadn't tried it (I'd done Tirz and Reta). I only wanted quieting food noise, which I figured a GLP1 would give. I own Cagri and Elora too, but should a smidge of Sema be enough I could save my amylin agonizing for later. Sema worked. In absolute terms the sides were mild, yet the most noticeable ones compared with 5mg of Tirz or as much as 20mg of Reta.
 
Reta 4mg failed for me. What works is 2.5mg reta plus 2mg tirz. I don't get why pushing one glp to its top dose would beat stacking two at doses I can tolerate. The alarm about that confuses me, it sounds like everyone agrees maxing one glp is sacred, which I haven't heard before. Maybe the mechanics just escape me (likely). Can you explain?
 
Dunno man... results differ person to person. Personally I'd keep the reta regimen going and throw in some tirz, 2-4mg, or .25-.5mg of sema or cagri, and see how that handles food noise, best of luck.
 
My stack is Tirz 7.5mg on Friday, Reta 4mg on Monday, plus Cargi .250mg on Wednesday, newly added, as I work toward goal weight. Experimenting is definitely my thing. I want to learn which of GLP1, GIP, glucagon or amylin controls my obesity best for life. Everyone is different, so your result may not match mine. Eventually I plan to test eloralintide too. Each of us took a different road, at a different point in life. Your view seems valid to me. Once I saw GLPs as a dangerous shortcut. Look at me now.
 
Honestly, there's no science on stacking multiple GLPs. The closest data comes from the high-dose sema trials (7.2mg and 16mg): nothing unexpected on safety, not much extra weight loss, much heavier GI trouble plus skin sensitivity, and 7.2mg sema was approved anyway. For GLPs plus amylin agonists the cagrisema studies mostly let people down, delivering less than tirz alone and piling on side effects, and the very early tirz plus elora results that sound amazing. The one upside to stacking reta, tirz or sema is tweaking the balance across the different receptors to get a slightly different profile than any single drug gives.
 
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