What happens when you forgot to take high blood pressure medicine?

Missing a single dose of high blood pressure medicine is unlikely to cause any immediate harm, but it does increase the risk of high blood pressure reaching dangerously high levels. If you forget to take a dose, take it as soon as you remember, unless it's close to the time for the next dose. Taking two doses at once to make up for the missed dose is not recommended, as this can lead to side effects. If you frequently forget to take your medication, talk to your doctor about ways to improve adherence.