Medication adherence: why consistency matters
Non-adherence to medication is estimated to cause 125,000 deaths and up to 10% of hospitalisations in the US every year. For chronic conditions like hypertension, diabetes and heart failure, the evidence is stark: patients who take their medications consistently have dramatically better outcomes than those who don't.
What counts as good adherence?
Clinically, adherence above 80% is considered adequate for most medications. Below 80%, therapeutic efficacy drops significantly for many drug classes. But for narrow therapeutic index drugs — warfarin, lithium, immunosuppressants, antiepileptics — even occasional missed doses can cause blood levels to drop below therapeutic range with serious consequences.
Why people miss doses
Forgetfulness accounts for roughly 55% of missed doses. Side effects account for another 20%. Cost is a factor for 15%. The remaining reasons include feeling better and stopping early, complex regimens with confusing timing, and practical barriers like running out before refill. The Refill Reminder Tracker addresses the last one directly. For complex regimens, the Medication Schedule Planner reduces confusion by organising everything into a clear daily card.
How to use your adherence data
Your 30-day calendar and adherence percentage give you a factual picture to share with your pharmacist or doctor. If you're consistently missing the same dose time (say, the midday dose), that's actionable data. It might mean switching to a once-daily formulation, adjusting the dose time, or finding a practical reminder strategy that fits your routine. Print the log and bring it to your next appointment.