hello to all you people who are takign toprol XL...i too was taking that drug i am a 19 yr old girl who started being treated for severe hypertention and attackycardia (extreme fast heart rate always) when i was 15 yrs old i had the same problems i was tired all the time, often felt nausa, and major chest pains. in cast some dont know toprol XL is not only used to lower blood pressure but it also slows ur heart rate which could cause the chest pains because ur heart slows then jults to go back to the pace it is used to...but it IS normal effects...however Monopril 20mg depending on how high ur BP is a much better drug to take for high BP AND it will protect ur kidneys from being damaged from the hypertention. i am taking that now and it is so much better i can function properly now and im no longer tired all the time...and i havnt had a chest pain in a while.

PS. beta blockers are not always the way to go ... usually for hypertention they use ACE Inhibitors...like the monopril i mentioned.

Hope I helped and good luck to all.