Should You Take Your Blood Pressure Pill in the Morning or at Bedtime? A 21,104-Patient Trial Finally Settled the Debate
Viral posts claim taking blood pressure medicine at night cuts heart attacks in half. We read The Lancet TIME trial (N = 21,104, PMID 36240838) and JAMA BedMed trial alongside Harvard Health and Sensible Medicine to give you the straight answer.
In the landmark TIME trial published in The Lancet (PMID 36240838, N = 21,104), researchers randomly assigned 21,104 adults with high blood pressure to take their daily pills either in the morning (6:00–10:00 A.M.) or at night (8:00 P.M.–midnight) and followed them for 5.2 years . The result? 3.4% of the bedtime group had a heart attack, stroke, or vascular death compared to 3.7% of the morning group—a statistical tie (0.3% absolute difference, Hazard Ratio 0.95, p = 0.53) . The Canadian BedMed trial in JAMA confirmed the exact same tie .