http://www.medications.com/effect/view/13915 I am 51 years old i have been taking this medication for over 20 years. I was taking 2 pills a day which was helping me a quite a bit. My son was just born when i started and he is now going to be 20 years old. I have servere arthritis on my knees and i nee Sat, 31 Jan 2009 12:20:55 -0500 http://www.medications.com/effect/view/13915?item=16609 I had knee replacement surgery last September, I used Darvcet N100 all during my recovery. The doctor couldn't believe it worked and said I could take up to 6 a day but I have to have my liver checked once a year. I hurt bad the first 2 months and took http://www.medications.com/effect/view/13915?item=16609