Most pharmacies will automatically fax a refill request to our office when you need a new prescription. You can also call your pharmacy directly and ask them to fax your prescription refill request to the office. A prescription refill usually takes three business days to process, however filling your prescription may take longer if it requires a prior authorization or other information from your health insurer. To avoid running out of your medication, please start the refill process well in advance of finishing your current supply of medication.