On this part, though, I don’t think it’s a necessarily binary “take the drugs forever or you regain all the weight” sort of situation. It would depend on a lot on individual responses and lifestyle changes you make during that time (if any).
All else being equal, people do quickly regain weight after stopping the drugs: People regained weight, worsened heart health after stopping weight loss drugs: review | CBC News
I’m hoping for this to be more of a “kickstart” — losing enough weight to be able to take more on activities and do things I currently can’t (like a pushup or pullup), coupled with behavioral therapy and consultation with a dietician. My doc said this three-prong approach (exercise + better nutrition + better emotional/mental regulation) is really necessary (and often suggested by insurance companies, apparently) in order to sustain a healthy weight, with or without the help of drugs. The goal for me is for the drug to make the first few months/years a bit easier, but after that, keeping up the weight loss is up to me. I can’t afford to stay on the maintenance dose ($300/mo at Costco, more elsewhere) unless it becomes generic soon.
I mean, it makes sense, right? If you use the drugs to help you jumpstart a healthier lifestyle and you can keep it up afterward, then you shouldn’t regain all the weight.
If all you do is take the drugs and change nothing else, well, once you stop, you’ll go right back to your previous, unhealthy habits (and the unhealthy “food environment”, as the professor in the CBC article called it):
Once people stop taking weight-loss medications, the hunger-curbing effects of the drug are removed but their “food environment,” such as ultra-processed foods, remains, and weight tends to return, said Dana Small, a professor at McGill University who holds a Canada Excellence Research Chair in metabolism and the brain.
“I still think that the GLP-1 drugs, as well as the new drugs in the pipeline are incredibly helpful and should be continued to be prescribed,” Small said. “However, we need to couple this with weight-loss maintenance strategies and concerted efforts to change the food environment.”