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A member asked:
Vitamins containin iron are said to interact with doxycycline. does this include pyridoxine (25mg) and thiamine (100mg)? how exactly do they interfer?
2 doctors weighed in across 2 answers
None Cited: There are no interactions cited for pyridoxine or thiamine when taking doxycycline. I appreciate your question. It is always best to check.
Answered 7/3/2014
3.9k views
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Iron binds to doxycy: Doxycycline reacts with iron because it binds to polyvalant cations. Iron or ferrous sulfate has a charge that binds or chelates to the doxycycline that is why they should be separated by at least 2 hours.
Answered 4/25/2015
3.9k views
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