At my local practice, they will go as high as 75mg. I am personally prescribed 50mg at night and been on that for roughly 8-9 years...
I have meet people who have been prescribed up to 200mg of the drug. They have been most of them with mental health issues...
Were the drug was used many years ago. I have even heard of small children been prescribed it for bed wetting at 5mg at night...
I must admit for nerve pain which i get my legs has worked great!! and find it to be far better than being on any Anticonvulsant meds that get used for that nerve pain..
all the best Dinger