If I want sex without using condom for only one time; how many femilon tablet I have to use and what are the schedule?

They are by prescription and the usage is right on the label. However, you take them every day of the month (some are "blanks") and they are not effective until after the first month's supply has been taken.

They are not a "take once or twice" and don't get pregnant option. You go on them for at least a month before they are effective.

How old are you?