OnTimer

Put your medication schedule on your calendar

Create recurring calendar events for every dose, then use OnTimer to make those reminders harder to miss.

For organization only. Always follow your prescribed instructions.

Create your schedule

Free medication schedule generator. No account required.

Medication name (optional)

Instructions (optional)

Included in each calendar event.

How often per day?

How should dose times be set?

Choose a practical starting point. You can adjust every time before adding the schedule.

First dose time

Your time zone

Calendar events will use this time zone.

Start date

How long will you take this?

Private by design. What you enter stays in this browser and is not sent to OnTimer. Anonymous tool-usage analytics never include medication names or instructions. Privacy Policy

The Real Reason You Miss Medication

You probably don't miss your medication because you don't care.

You miss it because of what happens right after the reminder.

You see a notification. You register it. You fully intend to act on it. But instead of taking it immediately, you think: “I'll do it in a minute.”

Then something small happens — a message, a task, a conversation. And just like that, the moment is gone.

This is where most systems fail. Not because they didn't remind you — but because they didn't interrupt you.

Why Medication Reminders Don't Work

Most reminder systems rely on a single notification. That works if you're free, you act immediately, and nothing interrupts you.

But real life doesn't work like that.

Notifications are easy to swipe away, ignore, or forget seconds later. So even though you “remembered,” you still miss the dose.

A Better System: Use Your Calendar

OnTimer's free Medication Schedule Generator creates one calendar file containing your complete recurring medication schedule. You can add it to Apple Calendar, Google Calendar, Microsoft Outlook, or another compatible calendar.

Instead of relying on memory, use your calendar as your system. Your calendar already fits your day, already structures your time, and is something you actually check.

Step 1

Enter the medication, instructions, dose times, and schedule duration.

Step 2

Review the complete recurring schedule before adding it.

Step 3

Open one calendar file and confirm the events in your calendar.

The Last 5 Minutes Problem

Your calendar will remind you. But reminders alone are easy to ignore.

If you've ever seen a reminder, thought “I'll take it in a minute,” and then missed it — you've experienced the last 5 minutes problem.

That's where most systems break down.

How OnTimer Helps

OnTimer works with your calendar — but instead of a single notification, it actively interrupts you until you act.

  • You don't just see the reminder
  • You don't lose the moment
  • You're more likely to follow through

If your current reminders aren't working in the moment, this is what you use instead.

Special Situations

For ADHD

If you struggle with time blindness, the issue isn't remembering — it's acting in the moment.

ADHD & medication timing →

For Caregivers

You can set up a shared calendar for a parent and create a system they can rely on.

Helping a parent →

For Pets

Pets won't remind you. A system ensures you don't forget their care.

Pet medication reminders →

Disclaimer: OnTimer is not a medical device and does not guarantee medication adherence or outcomes. This tool is for organizational purposes only and does not replace medical advice or prescribed treatment schedules. Always follow your healthcare provider's instructions.

Frequently Asked Questions

Why do I forget to take my medication even with reminders?

Most people don't forget entirely — they see the reminder, think 'I'll take it in a minute,' get distracted, and miss the dose. The problem is what happens after the reminder fires, not the reminder itself. A single notification is easy to dismiss and forget seconds later.

What is the best way to remember medication daily?

A useful system combines calendar events, so medication timing fits into your day, with a high-salience alert that interrupts you in the moment. Adding medication times to your calendar as recurring events gives the schedule structure. OnTimer pairs with your calendar to make those reminders harder to miss.

Are medication reminder apps effective?

They can help, but a standard notification can still be easy to swipe away or defer. Stronger reminder systems combine visibility through calendar integration with an alert that requires acknowledgment. The goal is to support follow-through after the reminder appears.

How do I set medication reminders on iPhone?

The quickest method: add a recurring calendar event for each dose time using the built-in Calendar app or the schedule generator on this page. For more reliable interruption, pair it with OnTimer — which turns calendar events into persistent, hard-to-ignore alarms.