GLP-1 Agonists: How They Work, Every Drug, Side Effects
GLP-1 agonists: a plain explanation, with the facts from the prescribing information.

Weight loss and half-life overview
In section 12.3 of each FDA label, half-life in days is the time the body needs to clear half of a dose.
Percentage of body weight. Trials, doses and lengths differ, so on its page, compare each with its own placebo.