Where is T4 tablet broken down

[Sailing14]

Where is T4 levothyroxine tablet broken down in the body. Is it in the stomach or small intestine or both?

I am on antibiotics at the moment and have had stomach upset today and diarrhoea, and this is the reason for my question and whether it has affected absorption of the tablet I took my tablet at 7 am and waited two hours until I took liquid antibiotics. No food between only coffee.

I have got some liquid T4 and wondered would this help while I am taking antibiotics and the disruption they cause? (I do prefer tablet form normally)

Thank you for any advice people may be able to give.

[tattybogle]

healthunlocked.com/thyroidu.... where-and-how-is-levo-absorbed-....-a-collection-of-information.

[Sailing14 in reply to tattybogle]

Thank you very much for these links. I will read through them and hopefully find some answers.

[Fizzyinch]

nhs.uk/medicines/levothyrox...

Caffeine can reduce the absorption of levothyroxine so best to ensure you space out your coffee 👍

[joydot]

I take NDT sublingually. Was taking t3 that way but was disgusting. Munich based daughters gut issues are worse than mine & she uses drops- less interference.

I found out by accident btw. Had loads of tests & was better on NDT but taking same sublingually was like rocket fuel.