Metoprolol Tartrate Er Vs Metoprolol Succinate Or Xl

Had been taking metoprolol xl 25 mg once daily for irregular heart beat for years without issue. Due to recent heart palpitations my dr prescribed metoprolol tartrate 50 mg twice daily. Due to a gluten sensitivity I have had several adverse stomach pains nausea etc from several pharmaceutical companies and am reluctant to keep trying different pharmaceutical companies. Have asked my dr to place me back on my metoprolol and he agreed and prescribed xl 25mg twice daily. What concerns me are the two metoprolol 25mg xl that I am now taking equivalent to the two metoprolol 50 mg twice daily. I have only been on the metoprolol xl 25 mg for a few days but I have experienced a few along with a feeling in my stomach that i am hungry.

My pharmacist did infirm me that she actually spoke to my cardiologist and he verified the dosage equivalency but I cannot see how taking two metoprolol xl25 mg can be the same as taking two metoprolol tartrate 50 mg. twice daily! Confused. I have yet to verify this with my cardiologist and plan to do so.

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No, a lower dose is in no way equivalent to a higher dose, according to what you've posted, you were taking 100mgs a day, in two separate doses of 50mgs each, and you are now taking 50mgs a day in two separate doses of 25mgs each.

However, it may not be necessary for you to take the higher dosage for the long-term, and/or the time released XL formulation might just work better for you. Have you discussed your concerns with your doctor?

Ref: Medline Plus Metoprolol

The FDA lists its typical side effects as possibly including nausea, dizziness, headache, increased urination, and hypotension.

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