Can I just check please 2.5 pen 1 dose 60 clicks is 2.5 30 clicks 1.25 so would be 3.75 does it have to be done as 2 doses or can I do 90 clicks and that is the dose ? Also 5mg pen 1 dose 60 clicks 5mg 30 clicks 2.5 15 clicks 1.25 thank you