Health · official-source review · reviewed 2026-10-10
A refill ordered on the last day of supply runs into weekends and holidays.
Count the days of medication left and the number of days from today to place the refill order.
Anyone who takes a regular prescription and wants to order refills before running short.
Use the source document or official route that applies to your situation. This guide does not contact another person or verify external information.
Count the tablets or doses on hand. Count carefully and check the label.
Use the number your prescriber gave you. Do not change the number to stretch the supply.
Ask your pharmacy how many days a refill takes, including weekends and holidays.
Subtract the lead time from the days of supply. That is the day you should place the order.
If the order day has passed, contact your prescriber or pharmacist the same day.
You have 20 doses left, take 2 a day, and need 7 days for a refill. You have 10 days of supply and should order in 3 days.
Use your own source and details. The example is not a record about a real person or organization.
U.S. Food and Drug Administration · reviewed 2026-10-10
What this source supports: Patients should plan refills ahead of time to avoid running out of essential medications over weekends and holidays.
Source limit: Pharmacy lead times vary; call your pharmacist well before you run out.
These sources support the statements above. They do not show that every person needs this guide. They do not show a specific result.
This guide counts supply from your own numbers. It does not change a dose, decide refill eligibility, or replace your prescriber or pharmacist.
Pharmacy lead times vary; call your pharmacist well before you run out.
Use current instructions from the responsible organization. This guide is a planning aid, not an official decision or a substitute for qualified advice.
Count the days of medication left and the number of days from today to place the refill order.
This App counts supply from the numbers you enter. It does not change a dose, decide refill eligibility, or replace your prescriber or pharmacist.
You enter every number yourself. The sources support the method and the limits. They do not produce a result for your specific case. Keep the original documents next to the sheet you build.
The App computes the worked example with your own numbers, in your browser.
APP 1
Count the days of medication left and the number of days from today to place the refill order.
Free · no account · no upload
Open Medication Refill Lead-Time CheckThe App runs in this browser. It does not send or save entries. Copy, download, or print only when you choose.
This guide uses short, direct instructions as an ASD-STE100-style writing target. It is not a formal certification.
Companion App: Medication Refill Lead-Time Check. It runs in this browser and does not upload your entries.
This guide is edited for clarity and checked against the sources it links. It is not a substitute for official instructions or qualified advice. A linked source does not show that every person needs this guide.