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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Levothyroxine And Microgynon Be Taken Together?

I take 75 mg of Levothyroxine at night as well as the pill (Microgynon 30) should this affect either of these medications? I used to take my levothyroxine in the morning but I take iron tablets & I heard that you shouldn’t take iron with levothyroxine & that they recommend taking levothyroxine at night as it absorbs better into the blood stream. My main concern is that it will affect my contraceptive pill or vice versa my pill will affect the levothyroxine. Can I check that with you please?
Thu, 22 Feb 2018
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General & Family Physician,  's  Response
Dear Ma'am, Hi & Welcome.

I can understand your concerns regarding the efficacy of the prescribed medications if taken together.

The combined oral contraceptive pills like Microgynon may decrease the blood level of Levothyroxine thereby reducing its efficacy of controlling the symptoms of hypothyroidism such as tiredness, feeling cold, constipation, weight gain, depression, joint or muscle pain, thinning hair or hair loss, dry skin, hoarseness, and abnormal menstrual periods.

Consult your treating doctor to increase the dose of Levothyroxine while taking Microgynon and you also need to undergo thyroid function tests periodically while taking these two medications together.

I usually advise my patient to take Levothyroxine in the morning on an empty stomach with water, at least one-half hour before any food is eaten.

As the iron tablets interfere with the absorption of Levothyroxine, they should be taken at least 4 hours apart.

Hope to have answered your queries.
Best regards.
A feed back is appreciated.

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Can Levothyroxine And Microgynon Be Taken Together?

Dear Ma am, Hi & Welcome. I can understand your concerns regarding the efficacy of the prescribed medications if taken together. The combined oral contraceptive pills like Microgynon may decrease the blood level of Levothyroxine thereby reducing its efficacy of controlling the symptoms of hypothyroidism such as tiredness, feeling cold, constipation, weight gain, depression, joint or muscle pain, thinning hair or hair loss, dry skin, hoarseness, and abnormal menstrual periods. Consult your treating doctor to increase the dose of Levothyroxine while taking Microgynon and you also need to undergo thyroid function tests periodically while taking these two medications together. I usually advise my patient to take Levothyroxine in the morning on an empty stomach with water, at least one-half hour before any food is eaten. As the iron tablets interfere with the absorption of Levothyroxine, they should be taken at least 4 hours apart. Hope to have answered your queries. Best regards. A feed back is appreciated.