Do The following meds block Levo absorption? - Thyroid UK

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Do The following meds block Levo absorption?

Henson1980 profile image
11 Replies

Hi guys

So I'm currently on 50mg of Levo, I take it first thing in the morning an hour before food. I'm also taking fluoxetine for PMS in the evening, my question is does fluoxetine effect the absorption of Levo? Even if taken at opposite ends of the day? Also I would like to start taking a pantethenic acid supplement to help with hair loss, would this effect Levo? Any advice is appreciated as there is conflicting views on the net 😊 thanks xx

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Henson1980
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11 Replies
Marz profile image
Marz

Fluoride was once given to patients with an over active thyroid - so I am wondering if you really need the SSRI. Do you have any thyroid results with ranges you could share ?

Henson1980 profile image
Henson1980 in reply toMarz

I don't I'm afraid I only know my last results from a few weeks ago showing my TSH as 6.79

Marz profile image
Marz in reply toHenson1980

If you are being medicated then it is well reported here on this forum that your TSH should be around 1 ....

From reading on this forum for 6 years I would like to suggest your FT3 is too low in range - hence the need for AD's.

Please read up on Kelly Brogan - who wrote the book - A Mind of Your Own. There is also a website in her name and you can sign up for her Newsletters .... :-)

shaws profile image
shawsAdministrator

I wonder why a doctor whose patient is on a starter dose of 50mcg prescribes fluoexetine for PMS.

Past post re fluoxetine.

healthunlocked.com/thyroidu...

Henson1980 profile image
Henson1980 in reply toshaws

Iv been on the fluoxetine alot longer than the Levo x

Marz profile image
Marz in reply toHenson1980

healthunlocked.com/api/redi...

shaws profile image
shawsAdministrator in reply toMarz

Great link :)

shaws profile image
shawsAdministrator in reply toHenson1980

Then, could it be that you were diagnosed due to a 'symptom' instead of hypothyroidism initially and not tested for hypothyroidism.

thyroiduk.org.uk/tuk/about_...

Henson1980 profile image
Henson1980 in reply toshaws

Could well be! Thanks for the links I'll have a read x

Dee215 profile image
Dee215 in reply toshaws

In my experience that happens often

Clutter profile image
Clutter

Henson1980,

You are undermedicated to have TSH 6.79 while taking 50mcg Levothyroxine. Ask your GP for a dose increase. The goal of Levothyroxine is to restore the patient to euthyroid status. For most patients that will be when TSH is 0.4 - 1.0 with FT4 in the upper range. FT4 needs to be in the upper range in order that sufficient T3 is converted. Read Treatment Options in thyroiduk.org.uk/tuk/about_... Email louise.roberts@thyroiduk.org if you would like a copy of the Pulse article to show your GP.

You should have a follow up thyroid test 6-8 weeks after increasing Levothyroxine dose as you may need further adjustment. Arrange an early morning and fasting (water only) blood draw when TSH is highest, and take Levothyroxine after your blood draw.

thyroiduk.org.uk/tuk/about_...

Re Fluoxetine and hypothyroid patients:

CONCLUSIONS:

Neither fluoxetine nor sertraline was associated with clinically significant changes in thyroid function or thyroid autoimmunity in either primary hypothyroid or normal thyroid function patients with depression. However, results suggest that patients with normal thyroid function who were treated with fluoxetine are more susceptible to minor changes within the serotoninergic system than patients with hypothyroidism on the same SSRI therapy. To the best of our knowledge, this is the first study to demonstrate the safety of administering SSRIs in hypothyroid patients.

ncbi.nlm.nih.gov/pubmed/195...

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