I don't know about you, but I would find a once-a-

I don't know about you, but I would find a once-a-week or once-a-month formulation easier to use than once every 3 months. It would be much easier to remember to inject on the first day of the month, or on a certain day of the week. I wonder how many people with a quarterly injection would be late by several days, when they suddenly remember that THIS is the month they were supposed to do it.