Have you been recommended an exercise regimen, or taken one up yourself? The one the great things about GLP-1s is that with the weight loss, it's easier to be more active once you've lost some of the weight. The negatives is that the current breed promote a loss in muscle mass as well as fat loss, so it is very important to do your best to maintain if not increase muscle while on them.
The next generation of drugs are including 2nd molecule...I'm blanking on the name, and a search isn't bringing it to me...which maintains or potentially increases muscle mass.
But curious what your experience with exercise has been.
I also didn't know there was a planned reduction in dosage, but the expectation is that you'll be on some type of GLP1 for life, is that not right?
None of the GLP1s cause more muscle loss than simply losing the same amount of weight without it. It’s the rapid weight loss without resistance training that causes it.
If you calorie restricted with the same exercise routine without the drug you’d see the same amount of lean muscle mass loss as you would taking the drug. This spreading of misinformation is actively harming people.
Cagrilintide (paired with semaglutide) and retatrutide are the next wave, though I'm not aware of any research for either indicating an increase in muscle mass.
My understanding of the literature is that there's nothing special about semaglutide or tirzepatide that promote muscle loss - it's just people who lose weight based purely on diet tend to also lose muscle mass. Even bodybuilders lose some muscle mass when cutting.
It's up to the individual to increase their protein intake and exercise, the same way they would in any caloric deficit.