high blood pressure
"Switched from Atenolol after many years due to usual beta blocker problems (tiredness, etc) and blood pressure wouldn't stay down long, tightness in chest and breathlessness. After 3 months on Coreg CR, tightness in chest much better, breathlessness no change, blood pressure stays down all day, but is 147/91 at night and in the morning. It is 113/57 two hours after medication, but I am also taking Isosorbide ER at the same time, which also lowers blood pressure as a side effect. Coreg CR is much more expensive, but I would rather take this anytime compared to Atenolol. Also beware of mixing these with Nasonex (no matter what they say) and any cold decongestants with phenylephrine. They will increase blood pressure."