the doctor can prescribe whatever limit he or she feels comfortable with and what the insurance company will cover. because many narcotic pain medications are diverted and re-sold on the market for quick cash doctors are very careful about prescribing large quantities of these highly-addictive and potentially dangerous drugs. no doctor will want to lose their medical licenses over this so many will not even prescribe them at all. if you are having real pain. pain so severe that it requires chronic narcotic medications you should be under the care of a pain specialist.
what is the limit quality that a doctor can prescribe a patient with knee pain can't stand or sit down long