Most people don't stop taking prescribed medication because they decide to — they stop because life gets in the way of a system that was never built to survive real life. A dose gets missed during a busy morning, and by evening it feels pointless to take it "late." A refill runs out over a weekend when the pharmacy is closed. A side effect shows up in week one and nobody explained it would fade by week three. None of these are failures of willpower; they're gaps in the system around the medication, not the person taking it.
What consistently helps: tying doses to an existing daily habit (right after brushing your teeth, not "sometime in the morning"), keeping a visible streak or log so missed days are noticed immediately rather than weeks later, and looping in one other person — a spouse, an adult child, a caregiver — who gets a nudge if a dose is missed. For chronic conditions like hypertension or diabetes, where missing doses often produces no immediate symptoms at all, that outside visibility matters more than it seems like it should. The condition doesn't announce itself when the medication lapses — the consequences just quietly accumulate.