Started on lisinopril last week, I've got hypertension that's not responding to lifestyle changes, and no obvious cause.
Nobody told me that not only does it peak at six hours, but that you need to go really steady exercising when you start it, or when you up your dose, to make sure you don't pass out.
Anyway, guess who just learned that lesson the hard way. 35 minutes into a PT session, just shy of 6 hours after my meds.