The doc and pharmacist said that for nerve pain it should give me relief in a couple days but that of depression it takes weeks. Is this true or have people found that it does take some time even for nerve damage . Also, what seems to be the effective dosage for nerve damage pain relief ? I've seen people say 10mg but it's doing nihing and neuro said keep going up till I got to 40. I haven't heard of people taking this much before except for depression where I know it goes higher