I have read some people take codeine to thicken things up, can this be prescribed by physician with refills or is it now like narcotics where they can not do refills and must have an office visit to get a script? Cleveland Clinic used to send my script for oxycodone by mail every 3 months without an office visit but then said I had to see pain management due to policy change and I had to have office visit every month to get refills..