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Can Synthroid And Flecainide Be Taken Together?

Posted on Tue, 22 Dec 2015

Question: I had been taking a 100 Mg Synthroid and Dr changed it to synthroid 125 mcg. I thought this was a a heavier dose but my daughter said it is a smaller dose Which is it.. Also I am to take it first thing in morning. I a m already taking Flecainide100mg when I first wake up.. Can I take both at same time?

Answered by Dr. Dr. Rovena (1 hour later)

Brief Answer:
It is a greater dose ; no interactions between these drugs.

Detailed Answer:
Hello.

Welcome to Healthcare Magic.

I read carefully your query.This is a common misunderstanding in patients.The dosage of Levothyroxine (Synthroid) is measured in mcg not in mg.
So a dose of 125 mcg (0.125 mg ) is greater than 100 mcg ( 0.1 mg) .
So ,your doctor has increased the dose of Synthroid that you are taking.It is usually taken in the morning ,30 min- 1 hour before breakfast.

There is no major interaction between Synthroid and Flecainide.You can take these drugs together.

Hope it helps.
Let me know if you have any question.I would be happy to help.

Kind regards,
Dr.Rovena Murati

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar