You rarely run out of medication because you forgot it existed. You run out because of a chain of small delays: the script had no repeats left, the pharmacy had to order it in, the doctor had no appointments until next week and then a public holiday closed everything. The way to never run out is to plan for the slowest path, not the usual one.
Our refill reminder guide explains how supply tracking counts down your tablets. This guide is the system around it: what to check, when to act and how to cover holidays and travel. It works for one medication or ten.
Know your path to a new pack
For each regular medication, answer four questions once and write the answers down:
- How many repeats are left on the script? It is printed on the script or the pharmacy label. Your pharmacist can also tell you.
- Does your pharmacy keep it in stock? Ask. If it is usually ordered in, it can take a day or two.
- How do you get a new script? An appointment, a phone or video consult or a request through your clinic. How long does that usually take?
- How do you collect it? In person, delivery or a family member.
These answers tell you how much warning you need. If a new pack is just a walk to the pharmacy, a week is plenty. If it needs a GP appointment that is booked out for ten days and then a special order, you need three weeks.
Set the warning to match
Set your low-supply warning to the slowest realistic path plus a margin. A rough guide:
- Repeats left, usually in stock: 7 to 10 days
- Repeats left, often ordered in: 10 to 14 days
- No repeats left, need a new script: 2 to 3 weeks
If your medication is one you must not miss, err on the side of more warning. You can always collect early; you cannot collect late.
Our refill date calculator and days of supply calculator help you work out the numbers.
Watch the repeats, not just the tablets
The most common surprise is reaching the pharmacy and hearing "there are no repeats left". Avoid it:
- When you collect the second-to-last repeat, book the doctor. Not when you collect the last one.
- Keep a note of repeats remaining next to each medication in your tracker or on the box.
- Ask your doctor about the script length. If a medication is long term, ask whether more repeats are appropriate. It is their decision, but it is fine to ask.
Line your refills up
If you take several medications, they probably run out on different days, which means many pharmacy trips and many chances to miss one. Ask your pharmacist about lining them up so they all come due together. They can often help you get there over a cycle or two. After that, one weekly or monthly check covers everything.
Plan around holidays
Pharmacies and clinics keep shorter hours over public holidays. The two weeks around Christmas and New Year are the biggest risk, followed by Easter and long weekends. Before each one:
- Check supply for every medication two weeks ahead.
- Collect anything that will run out during the holiday or within a week of it.
- Book any script appointment early, because clinics fill up before holidays.
- Know your nearest extended-hours pharmacy, just in case.
Plan around travel
Before any trip, make sure you have enough for the whole trip plus a few extra days, in case of delays. For longer trips, talk to your pharmacist well before you go, as getting extra supply can take time. Travelling overseas brings its own rules about carrying medication. Our travel checklist covers what to sort out and when.
Keep a small buffer
Where it is allowed and safe, aim to collect your next pack a few days before the current one runs out, so there is always a small overlap. Use the older pack first. Your pharmacist can tell you how early you can collect for each medication.
What to do if you are about to run out
If you realise you will run out before you can get more:
- Call your pharmacy first. In some situations a pharmacist may be able to help with a small emergency supply of a regular medication. Rules differ by state and country, and by medication, so ask.
- Contact your doctor's clinic. Many can arrange a script without a full appointment for a regular medication.
- Do not stretch doses to make the supply last unless your doctor or pharmacist tells you to.
A five-minute weekly check
Pick a day. Check supply for everything you take. Anything under your warning level gets reordered today. Anything with one repeat left gets a doctor's appointment booked. That is the whole system.
How Cadence helps
Supply tracking in Cadence is free. Enter your current count and refill amount, and Cadence shows a Supply Runway with roughly how many days are left, taking away each dose you log. Low supply alerts tell you when it is time to reorder, and Refilled adds a new pack in one tap. Because it counts logged doses, it keeps up with dose changes and as-needed use. It works for vitamins and supplements too.
Frequently asked questions
How many days of medication should I keep on hand?
Ask your pharmacist what is sensible for each medication. Many people aim to collect a new pack about a week before running out.
What if my medication is often out of stock?
Tell your pharmacist and ask them to put it aside or order it in when you collect. Give yourself more warning for that medication.
Can a reminder app order my refill?
No. It tells you when to act. Ordering is still done through your pharmacy or doctor.
Cadence is a free medication reminder app for iPhone and Apple Watch. It is not medical software and does not give medical advice. Cadence Pro is a one-time purchase, with no subscription.
