Please make sure you use only one of the pharmacy on the LDN site. You need to start low ..like 1mg and go uo .5 every 2 weeks or so. Sleep can be affected for a few weeks. I did not have this and actually slept better. Do Not go over 4.5mg as this can then have a reverse affect. Everyone's body is different . I am very sensitive and can only take 2 mg. If you have low blood pressure it can drop it to but will level out for most. I hope this helps. Try to find a dr that has used this. I think on the LDN there is a dr referral if not call one of the pharmacy on the list and they can tell you one near you.
God Bless