Hi Gidget, welcome! sorry to hear you have lupus but you have definitely come to the right place, there are a lot of caring people here.
Lupus attacks my GI tract, I started Imuran in May 2005 and it has worked wonders for me. I started taking 50mg a day (=1 tab) and then about
a year later we had to up it to 100mg (=2 tabs). When I first started it my doctor had my labs (CBC, kidney and liver function, etc) checked every two weeks for 6 weeks then when she saw it was working well for me and not lowering my labs she has me going every other month.
I take all of my meds at night after dinner and I have no problems at all. With Imuran you have to make sure to take it with food and a good meal I might add or you could have some nausea, that's also why I take mine at night. The reason I mentioned eating a "good" meal is there have been times I just wanted a bowl of cereal and I would take my meds and have a lot of nausea. Good luck to you and take care