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Foltx Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 10/6/2015

Foltx (folacin, cyanocobalamin & pyridoxine) is a combination of vitamin B-6, vitamin B-12 and folic acid used to treat hyperhomocysteinemia, with particular emphasis for individuals with or at risk for atherosclerotic vascular disease in the coronary, peripheral, or cerebral vessels, or vitamin B12 deficiency. Foltx is available in generic form. Common side effects of Foltx include nausea, stomach upset, diarrhea, drowsiness, flushing, numbness/tingling, headaches, itching, skin rash, or a feeling of swelling of the entire body.

The usual adult dose of Foltx is one to two tablets daily or as directed by a physician. Foltx may interact with altretamine, cisplatin, levodopa (when used without carbidopa), folic acid antagonist (e.g., methotrexate), hydantoins (e.g., phenytoin, diphenylhydantoin), pyrimethamine, or other vitamin/nutritional supplements. Tell your doctor all medications or supplements you are taking. Foltx should be used only when prescribed during pregnancy. This medication passes into breast milk. Consult your doctor before breast-feeding.

Our Foltx (folacin, cyanocobalamin & pyridoxine) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is Prescribing information?

The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.

Foltx FDA Prescribing Information: Side Effects
(Adverse Reactions)


Allergic sensitization has been reported following both oral and parenteral administration of folacin (folic acid). Paresthesia, somnolence, nausea and headaches have been reported with pyridoxine. Mild transient diarrhea, polycythemia vera, itching, transitory exanthema, and the feeling of swelling of the entire body has been associated with cyanocobalamin.

Read the entire FDA prescribing information for Foltx (Folacin, Cyanocobalamin & Pyridoxine)

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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