The only doses of Wegovy available in US right now are the 1.7 and 2.4. This is because Norvo stopped making the smaller dose pens so doctors would stop putting new patients on it so Norvo could provide doses to patients already taking it. This will stay that way until they can catch up. (I work in pharmacy). Also some insurance companies only approve 90 days supply at a time (84 days in case of a weekly shot) of weight loss medication so they can see if it is helping you. If nothing happens within first 3 months then they have a reason to deny a refill. It is expensive, about $1300 per month, so insurance wanto to make sure that first 3 months you are giving it you all to lose with the shot, diet changes and exercise.