Q: Why does my BP spike every day around 4 p.m.? It stays very elevated for around an hour, then gradually goes down in the evening. I am on Atenolol, Hydrochlorot, and just started Enalapril this week.
A: Blood pressure is not constant. It varies throughout the day. Also you are on several blood pressure medications. Depending upon their strength and when you take them, they will have different peak effects on your blood pressure at various times throughout the day. I assume your doctor started the Enalapril (Vasotec) to get you in better control. You should discuss the best time to take your medications with your doctor. Make sure you mention the afternoon spike.