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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Side Effects Did You Experience Being On Metoprolol(lopressor) ?

I take half of a 25mg in the morning and the other half at dinner time. I ve been dizzy, cold, tired, haven t been sleeping well, felt like my heart is racing and sometimes my blood pressure or my pulse are up in between doses. I m waiting to hear back from my cardiologist. I have a digital blood pressure monitor that I use to take my blood pressure and pulse. My bp was 130/96 this morning and my pulse was 96 before medication. Usually my diastolic blood pressure is higher. I have been on lopressor since April 27th. Before that I was on hctz.
Tue, 22 Jun 2010
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  User's Response
's  Response
i felt the same way when i was on atenolol (very similar drug, both are beta blockers). you can feel cold, dizzy, and tired because it reduces the amount of blood your heart pumps. your body adjusts some to the side effects after a couple weeks. if you skip a dose or stop taking the medication suddenly, your heart can race, because your body adjusts to having the metoprolol in your system. when the metoprolol is no longer there, your heart rate and blood pressure increase. cutting the tablets into quarters and taking one in the morning and one at night may help, but ask your cardiologist before you do it. also, i know theyre little guys so cutting them into quarters might not work well. anyway, if you really dont like beta blockers you could see if he'll switch you to another drug like an ace inhibitor. dont just suddenly stop taking it or your problems can get worse. i didnt stay on atenolol very long bc i got too tired when i went jogging or swimming
  Anonymous's Response
Anonymous's  Response
The side effects of Lopressor include dizziness, diarrhea and vomiting. The side effects increase when they interact with certain medications like albuterol, Hydroxychloroquine, Insulin, Isocarboxazid and few other medications. You can find the full details on the drugs that interact and increase the intensity of the side effects at International Drug Mart
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What Side Effects Did You Experience Being On Metoprolol(lopressor) ?

i felt the same way when i was on atenolol (very similar drug, both are beta blockers). you can feel cold, dizzy, and tired because it reduces the amount of blood your heart pumps. your body adjusts some to the side effects after a couple weeks. if you skip a dose or stop taking the medication suddenly, your heart can race, because your body adjusts to having the metoprolol in your system. when the metoprolol is no longer there, your heart rate and blood pressure increase. cutting the tablets into quarters and taking one in the morning and one at night may help, but ask your cardiologist before you do it. also, i know theyre little guys so cutting them into quarters might not work well. anyway, if you really dont like beta blockers you could see if he ll switch you to another drug like an ace inhibitor. dont just suddenly stop taking it or your problems can get worse. i didnt stay on atenolol very long bc i got too tired when i went jogging or swimming