Medication - 43FoldersWiki: "Most health insurance prescription plans have rules regarding how soon a prescription can be refilled. The term 'refill' also applies to any drugs that require a new prescription each month (certain narcotics, ADD-ADHD meds, some psychiatric meds, for example). A common rule is that a refill may be obtained when 75% of the previous prescription has been used following the physician's dosing instructions. This means that a 30-day prescription can actually be refilled after 23 days (rounded up from 22.5). If you get your prescriptions filled at a retail pharmacy on a monthly basis, this means you can refill your script every 24 days. Adhering strictly to this method makes good financial sense whether you pay a percentage of the meds' total cost or a flat fee because you can obtain approximately 15 refills a year as opposed to 12 (365/24=15.21). By far the most important reason for using this method is building up a supply of the essential medications for yourself and your family. If there is a major disruption at any step along the way from manufacture to delivery of life-sustaining medications (widespread power outages, satellite failures, natural disasters) you could potentially have months of vital medications on hand. As always, laws may vary from state to state, and all prescription medications must be stored properly to retain quality and preferably locked away to keep them out of the wrong hands. "