What if the scale has not moved after 12 weeks?

Twelve weeks into a weight-loss medication is a natural checkpoint. If the scale has not moved by then, the useful question is what the published guidance says to do.

What the NIDDK says to do

Ask about stopping. The publisher www.niddk.nih.gov states: "If you are not losing weight after 12 weeks on the full dose of your medication, ask your health care professional whether you should stop taking it."

Note the conditions. The clock is 12 weeks, and it counts from the full dose, not from the first prescription. A person still stepping up to the full dose has not reached the checkpoint yet.

Where this question sits in the course

This is a question for the middle of a course of treatment, not the start. Twelve weeks at the full dose is when the result, or the lack of one, becomes a decision.

The NIDDK's page on prescription medications for overweight and obesity is the source of the guidance above and covers the medications themselves. MedlinePlus on weight control is a broader reference for the rest of the picture.

Starting the conversation yourself

The next stage is a conversation with your health care professional, and the guidance makes you the one who starts it. Go in with the dose you have been on and for how long, so the discussion is about facts.

Where the medication comes from matters too, and the FDA's published concerns with unapproved GLP-1 drugs used for weight loss are worth reading before you change anything after a stalled result.

From continuing by default to deciding

No weight loss after 12 weeks on the full dose is the sign. It changes the plan from continuing by default to deciding, with your health care professional, whether to continue at all.