i've been on ortho lo for about 4 months now and my dr. has just switched me to orthotricyclen. my acne was getting worse w/ ortho lo and she said the orthotricyclen may help a little better. my question is, has anyone else used the two, and how are they different, and which did you like better? also did anyone see weight gain on orthotricyclen vs. the ortho lo? i know orthotricyclen has 35mcg of estrogen as opposed to 25mcg in the ortho lo. i don't know if the estrogen is the hormone that's responsible for acne tho? any input would be appreciated!