heart attack
"I'm a 52 YO male in fairly good shape. I started taking Metoprolol, 50mg twice a day after suffering a cardiac arrest earlier this year, in April. It has been very effective in controlling my blood pressure and keeping my heart rate low. The side effects are becoming unbearable now though. I'm tired, and have a lot of trouble focusing on my work during the day, have a lot of restless nights of tossing and turning, and have now developed a rash under my arms. I think it also contributes to erectile dysfunction. I spoke to my cardiologist about all this today, and he's cutting my dose in half. I'm hoping some of these side effects will diminish when I cut down to 25mg twice a day."