I have nerve pain related to back and sciatica damage. I am to take one only at night to sart, I am on the fentanyl patch and norco for breakthrough. I ask about starting it tonight as we are photographing a big wedding tomorrow and I can' afford to be out of it or foggy in the morning. I am only o take one x 100 mg tonight but have no idea how strong this druig is. Ayone around tonight who can give me their opinion? Thanks.