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Forum Name: Hematology Topics

Question: is ferrex needed for this ferritin level??

 rfied112 - Wed Aug 24, 2005 10:59 am

daughter suffers depression , also had thyroid cancer so on synthroid 175 , due to complaints of fatigue Dr ran blood/urine tests: Ferritin= 34 NG/ML and blood Iron was 86 MCG/DL. dr put her on Ferrex 150 twice a day, given toxicity of iron and her absorbtion of synthroid does it make sense if her numbers aren't really anemic to put her on Ferrex150?? thank you
 Dr. Safaa Mahmoud - Wed Jul 26, 2006 2:04 pm

User avatar Dear rfied112,

The iron supplement may combine with levothyroxine in the stomach and affect the absorption of the drug. As a result the usual dose of levothyroxine becomes less effective in correcting hypothyroidism.

It is recommended to take the dose of levothyroxine enough time before the iron supplements.
While taking the two drugs, it is advisable to check for the thyroid function on a regular basis.

Although the interaction between these two drugs is not common and is usually moderate in severity, any symptoms suggestive of thyroid hypo-function or any abnormal signs should be considered seriously and consultation of the physician is mandatory.

Best regards,

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