high blood pressure
"Metoprolol controlled my rapid heart rate and lowered my blood pressure, but after taking it for a couple years, my sense of smell and taste were dulled to the point where I could sniff cat poop and hardly even grimace.  All food was bland and uninteresting.  You'd think this would have allowed me to lose weight, but I stuffed my face anyway, hoping that the next bite might taste like something.  No luck.  My doctor said that Bystolic is the latest and greatest - fewest side effects, so I gave it a try. I'm starting to get my taste and smell back.  It's worth the money."