There is a lot of truth to most of these Responses, however you must be warry of those misinformed or under educated. I m a pharmacist and the first thing that must be addressed is the low pulse. A pulse that is 42 is much too low (unless you are a world class athlete). Are you tired, dizzy, light headed, etc? Are you urinating normally? There are many bad consequences that can occur from too low of blood pressure, most likely the above previously stated lightheadedness, dizzyness, tiredness. Those don t pose any immediate threat unless they are pronounced, but kidney problems, stroke, or ever heart attacks may occur if blood pressure gets too low and with such a low pulse that is certainly possible. As you can see this could be very serious and requires immediate attention. your primary physician is completely qualified to prescribe beta blockers (ie Tenormin) As for the poster who inferred you must see a cardiologist to prescribe these drugs is completely wrong. The majority of Hypertensive patients are treated by primary physicians and beta blockers are most likely one of their first choices. However in your case a beta blocker may not be the best choice for you. Make an appt. immediately if your pulse is consistently under 50. Anywhere between 60 and 100 is considered to be normal as long as you are not symptomatic. Don t let these posts scare you and cause you to completely stop taking the drug, that can cause a rebound hypertensive effect and could lead to a dangerously high pulse. If yar are suffering from some of the symptoms above you may try taking less, for example take 1/2 tablet until you can meet up with your MD. If things get worse you should seek immediate medical attention. I hope this helps. let me know if I could be of more assistance.