Switch to Reta or use up Tirz first?

Status
Not open for further replies.

OregonSunshine

GLP-1 Apprentice
Member Since
Jan 1, 2026
Posts
30
Likes Received
88
Location
Portland, OR
I still have about 3-4 months of compounded Tirz left and my brand new stash of Reta arrived last week. I'm really undecided if I should switch now or use up all my Tirz first. I'm still losing, albeit slower than when I started (started weight loss in March 2025 at 236, started Tirz at 205 in September and I am currently about 177). I'm losing at about 4-5 lbs a month - not great, not terrible.

The reasons I'm considering switching are for the liver benefits, to possible increase my rate of loss and to maybe not have the general fatigue/dullness I've had with Tirz.

For those who switched, did you see an increase in rate of weight loss? Were the sides comparable or totally different?
 
If you want to use up the tirz and not screw with what's working but the fatigue/dullness is getting you, a lot of people do a VERY light stack of Survodutide against their tirz. You might read up on it. I'm talking 0.3 mg a week for the first month, 0.6 after that, and not much higher than that. I don't know the science on why it seems to help, but I feel like it does for me.
 
Why not both? Lol I stack both, not forever jist through my weight loss journey. The Chinese market it as "burn blend" and it does just that
 
Use it up, you are losing weight. People also talk a lot about reta fatigue, so might even be worse than now.
 
OregonSunshine said:
maybe not have the general fatigue/dullness I've had with Tirz.

I can feel just as shitty on reta too. In the studies, fatigue is about the same with tirz and reta.

Reta may be overrated but not for the liver. So if you have a fatty liver, reta would be better/quicker for liver health. Reta is also better on paper for lowering LDL.

The studies do show faster weight loss with reta, but you have to get the dose up. Some people temporarily gain weight switching to reta.

Reta is definitely overrated when it comes to preventing muscle loss. Some studies even show a greater percentage of muscle loss with reta than tirz.

(Anyone with heart issues should not even try reta until it is FDA approved.)
 
Calm Logic said:
I can feel just as shitty on reta too. In the studies, fatigue is about the same with tirz and reta.

Reta may be overrated but not for the liver. So if you have a fatty liver, reta would be better/quicker for liver health. Reta is also better on paper for lowering LDL.

The studies do show faster weight loss with reta, but you have to get the dose up. Some people temporarily gain weight switching to reta.

Reta is definitely overrated when it comes to preventing muscle loss. Some studies even show a greater percentage of muscle loss with reta than tirz.

(Anyone with heart issues should not even try reta until it is FDA approved.)
Think i read on 10 to 12mg reta after 42 or 48 weeks 76% percent of the group who had fatty liver no longer had fatty liver.... amazing.
 
Airborne Daddy said:
Think i read on 10 to 12mg reta after 42 or 48 weeks 76% percent of the group who had fatty liver no longer had fatty liver.... amazing.
Thats good to know! My last tests before I started all of this showed a fatty liver. But 85 fucking pounds down now lookong forward to new tests at my 100 pound down mark
 
randompersonrandom said:
If you want to use up the tirz and not screw with what's working but the fatigue/dullness is getting you, a lot of people do a VERY light stack of Survodutide against their tirz. You might read up on it. I'm talking 0.3 mg a week for the first month, 0.6 after that, and not much higher than that. I don't know the science on why it seems to help, but I feel like it does for me.
I stacked when switching to Reta, then did Reta alone, now I’m stacking again. I switched because on just Tirz I have severe fatigue, severe issues with no food tasting good (so I drank unflavored protein in my coffee because I at least was getting my protein in), and severe constipation. If you do stack, start low. People who have elevated heart rates generally start too high or titrate up too quickly. I started w/1 mg Reta and 8 of Tirz. My sweet spot (best weight loss/least side effects) was 4 mg/4mg weekly.

Calm Logic said:
I can feel just as shitty on reta too. In the studies, fatigue is about the same with tirz and reta.

Reta may be overrated but not for the liver. So if you have a fatty liver, reta would be better/quicker for liver health. Reta is also better on paper for lowering LDL.

The studies do show faster weight loss with reta, but you have to get the dose up. Some people temporarily gain weight switching to reta.

Reta is definitely overrated when it comes to preventing muscle loss. Some studies even show a greater percentage of muscle loss with reta than tirz.

(Anyone with heart issues should not even try reta until it is FDA approved.)
Anyone with common sense can use Reta. I have AFib and have had no issues. Start low, wait a full month between increases and you should be fine. Any GLP has the potential to increase resting HR.

I’m sorry you felt bad on Reta- it was such a relief to have energy again. It definitely seems to not suppress appetite as well as Tirz for many, but fortunately I haven’t had that problem. My issue is I’ve lost weight more slowly on Reta.. but I’ve also changed to eating more real food instead of living on protein shakes. I have no idea about muscle loss, I have put some muscle on according to my “smart” scale, but I’ve also gotten more active since the fatigue is improved.

All in all, it’s a good option. Here is what I would do if I were you:

-If no aggravating side effects, max out on weight loss using your Tirz first- get to max dose while still losing weight and switch then.

-if you want to switch for fatty liver or faster losses and don’t want to wait, stack them. Don’t waste your Tirz.

-if you have side effects you can’t stand anymore, stack- you’ll still get relief from the sides as the Reta is titrated. And I titrated down on Tirz while increasing Reta. You might find that you like stacking- as you’ve read here, many do.

Whatever you decide, just be cautious. And good luck!
 
Gr33dyOctopus said:
Why not both? Lol I stack both, not forever jist through my weight loss journey. The Chinese market it as "burn blend" and it does just that
I'm thinking about doing this myself.
 
Status
Not open for further replies.

Trending content

Members online

No members online now.

Forum statistics

Threads
2,651
Messages
56,150
Members
1
Latest member
Admin
Back
Top