I used to take it any time of day as it did not make me drowsy or effect my motor skills. I used to get a bit lightheaded from it but it was rather pleasant. I can't say how it will effect you though.

It would hit my system within 20 minutes and I would have relief. I could be at work or out in public and had no problems.

If you are intending to take it and can afford to at most fall asleep or be dizzy then you should be able to take it like a PRN.

Did that help?