1 mg per day is equivalent to oral morphine
75 mg per day. Most patients require between 1 mg and 4 mg per 24 hours intrathecally to achieve reasonable comfort. This is equivalent to between 75 - 300 mg oral morphine
per day. Even with
this "Rolls Royce" technique, 100% pain relief is not attainable nor expected. Co-medication with
paracetamol, NSAIDs, amitriptyline and gabapentin
may still be necessary.