we only get 2 boxes, lasts about a week x
We get 4 boxes a time It depends on age to how long it lasts though As a baby she was needing more every 2-3weeks as she needed 2 sachets a bottle then we weaned down to 1 sachet and have just gone to 2 formula bottles a day so will last 2 months
We got 9 boxes a month he would go through 1 box every 3 days. He had 1 dual sachet or 2 single sachets per bottle 5x a day x
We got the prescription in boxes of 8. Lasted around the month or so. We didn’t find it worked for us so moved to something else and then weaned off that when the time came