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fast heart rate

I am 65 and take metoprolol (25 mg) for a fast heart rate.  I went hiking this week and my heart rate was still running around 170.  Is this normal or should I up the dose of metoprolol?
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Avatar universal
Hello  I am 61 yrs old  and  I been using metoprolol tartrate 25 mgs  twice daily  and I been noticed  I feel funny when I been working on gardening greenhouse and feel weak  and I  check my blood pressure   its normal but heart rate  low avg like 50 sometime later on normal  mostly low heart  beating what cause it ?? Should have to be cut down once daily  instead twice daily just wondering my appt Dr  next week pls reply  thank you ...
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11548417 tn?1506080564
At an age of 65 you must be close to your max heart rate with 170.

When you have a healthy heart, there is nothing wrong with exercising at near max heart rates.
Question: Why did your doctor prescribe the metoprolol?

When you increase the dose of the metoprolol, your max heart rate will go down, meaning that you can not hike at the pace you used to anymore.
If you do not want these high heart rates, it is probably better to slow your hiking pace in stead of forcing that with an increased dose of betablocker.

Anyway, I suggest that you do not up or down the metoprolol dose without consulting your doctor.
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