There are a number of occasions when blood pressure medications may be prescribed for use, but the best time to take them will depend on your individual circumstances. In most cases, it is preferable to stay clear of high-risk situations during this time period. The following conditions can cause individuals with low or normal blood pressure levels to have dangerous spikes in their readings: Smoking
Heavy drinking and/or consumption of caffeine products (coffee, soda pop)
Anxiety / Stressful Situations A sudden spike in blood pressure could also occur if a person who has been taking medication suddenly stops doing so or experiences changes that affect his or her ability to control these factors. If you find yourself needing medical assistance during one of these times, remember that every second counts!