gofl1 Posted September 20, 2012 Report Share Posted September 20, 2012 This is a random thought I have been having, but can a beta blocker cause tachycardia? My thinking has been that tachycardia is generally a response to a drop in blood pressure to maintain equilibrium. Because beta blockers decrease blood pressure, can they cause an increase in heart rate if that blood pressure drop is too great? My pots symptoms have in general been very good lately. My tachycardia upon standing however, has been considerably worse within an hour or two of taking my daily dose of toprol. have also been dealing with increased shortness of breath and lightheadedness lately. It is almost as if my body is healing and the toprol is becoming a hindrance. Sorry if this question is totally dumb. Quote Link to comment Share on other sites More sharing options...
flyingsquirrel Posted September 20, 2012 Report Share Posted September 20, 2012 EDIT: please see reply below Quote Link to comment Share on other sites More sharing options...
giftcreations123 Posted September 20, 2012 Report Share Posted September 20, 2012 I had same thing..It seemed to cause more adrenal rushes and increased heart rate for me too and worse snxiety too Go figure ! Quote Link to comment Share on other sites More sharing options...
flyingsquirrel Posted September 20, 2012 Report Share Posted September 20, 2012 All beta blocker act on beta 1 receptors (non-cardioselective beta blockers also act on beta 2 receptors). Beta 1 blockers have a variety of actions, the two most important ones are:negative chronotropic effect - slowing down the heart ratenegative inotropic effect - decreasing the force with which the heart pumps blood (therefore lowering BP)Generally these effects are fairly evenly balanced with the commonly prescribed beta blockers, however each person will have a slightly different chronotropic and inotropic reaction to any given drug. Also, there may be dose-dependent responses; the blood pressure lowering effects might be seen at a lower dose than the heart rate lowering effects.Any time you lower blood pressure, your body will want to raise your heart rate and constrict your blood vessels in an attempt to compensate. If the beta blocker has not yet taken away your body's ability to increase your heart rate, this is exactly what it will do.I hope this answered your question. Quote Link to comment Share on other sites More sharing options...
gofl1 Posted September 21, 2012 Author Report Share Posted September 21, 2012 Thank you so much flying squirrel, very helpful information. Quote Link to comment Share on other sites More sharing options...
Lemons2lemonade Posted September 25, 2012 Report Share Posted September 25, 2012 i found that metoplerol made my tachycardia worse Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.