Hi. This week I increased to 1800. I started at 300 and my doc siad 1800 to I think 3200. I had tried it at the start of this 2 plus years ago but was having weird symptoms but it ended up it was not from this so I started it again. Each week we increased by 300. Are you on any other meds or have you tried any? Everyone is different in what and how much they can tolerate.