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A member asked:
Took 50mg toprol (metoprolol) xl as doctor made me switch from atenolol. i didnt feel this med working until about 7 hours later and there on. doctor says its ok?
A doctor has provided 1 answer
Atenolol/Toprol XL: Atenolol had faster onset of action than Toprol (metoprolol) XL and also eliminated faster than Toprol (metoprolol) XL from our body. Toprol (metoprolol) XL had longer time to show effect( Longer onset of action) but also stay in system longer and that's why the frequency of taking Toprol (metoprolol) per day is less than atenolol
Answered 9/14/2015
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