Yes, after I had an accident, I was given them daily in hospital for a month, and no I probably take one a week only.
I would love to take one daily as it does take away my pain, however I prefer not to as they can do damage and have side effects, so I only take them when I ache and know I have to stand for longer than usual.
They work brilliantly on me, and the ones I now have are supposedly the easiest on your stomach and can be taken more often.