The following drugs can interact with ferrous sulfate. Tell your doctor if you use any of these:
acetohydroxamic acid (Lithostat);
chloramphenicol;
cimetidine (Tagamet);
etidronate (Didronel);
dimercaprol (an injection used to treat poisoning by arsenic, lead, or mercury);
levodopa (Larodopa, Dopar, Sinemet);
methyldopa (Aldomet); or
penicillamine (Cuprimine).
This list is not complete and there may be other drugs that can interact with ferrous sulfate. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.
Get emergency medical help if you have any of these
Less serious side effects may include:
constipation;
upset stomach;
black or dark-colored stools; or
temporary staining of the teeth.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.
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