This one has a reasonably settled answer, so here it is. Extending the interval and reducing the dose are pharmacologically different. Reducing the dose lowers the whole exposure curve evenly; extending the interval keeps the peak and drops the trough. Since the appetite effect tracks the trough, interval extension tends to give you good days and bad days rather than a uniformly smaller effect, which most people find harder to live with.

PharmD_Rodriguez said:

Extending the interval and reducing the dose are pharmacologically different.

Maintenance phase reality on maintenance dosing: reached my goal 6 months ago and now I'm in maintenance. It's a different mental game.

During weight loss, the scale going down is constant positive reinforcement. In maintenance, the scale staying the same is... just... nothing. It's anticlimactic. The dopamine hit is gone.

What keeps me going: lab improvements, physical capabilities, how I feel, fitting in clothes I love, and the knowledge that regain happens when people stop being intentional. I'm staying intentional.

pam_stl said:

I am eight weeks into deliberately reducing rather than stopping, and the appetite change came back faster than the weight did.

Can confirm the pattern pam_stl describes. STEP 4 is the study that answers this and it is blunt. Participants who continued kept losing; participants switched to placebo regained about two thirds of what they had lost within a year, and the metabolic improvements faded with the weight. That is the same pattern as every other chronic-disease medication ever withdrawn, and it is an argument about the condition rather than about the drug.

From the other side of the consultation, briefly.

pam_stl said:

...I stopped maintenance dosing and regained all the weight...

This is a really important data point and I appreciate your honesty. The STEP 1 extension data showed ~2/3 of weight regain within 12 months of discontinuation.

This doesn't mean the drug "doesn't work" — it means obesity is a chronic disease requiring ongoing treatment, just like hypertension or diabetes. We don't criticize blood pressure meds for "not working" when BP rises after stopping them.

The framing matters. maintenance dosing is a treatment, not a cure. And that's okay.