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FaLessa (folic acid) Disease Interactions

There is 1 disease interaction with FaLessa (folic acid):


Folic acid (Includes FaLessa) ↔ anemia

Severe Potential Hazard, High plausibility. Applies to: Anemia of Unspecified Nutritional Deficiency

The use of folic acid is contraindicated in patients with undiagnosed anemia. Folic acid in dosages above 1 mg/day can obscure the diagnosis of pernicious anemia by alleviating the hematologic abnormalities while allowing the progression of neurologic complications. In addition, folic acid alone is improper therapy in the treatment of pernicious anemia and other megaloblastic anemias where vitamin B12 is deficient.


  1. Butterworth CE Jr, Tamura T "Folic acid safety and toxicity: a brief review." Am J Clin Nutr 50 (1989): 353-8
  2. Katz M "Potential danger of self-medication with folic acid." N Engl J Med 289 (1973): 1095
  3. "Product Information. Renal Multivitamin Formula Rx (folic acid)." Vitaline Corporation, Ashland, OR.

FaLessa (folic acid) drug interactions

There are 25 drug interactions with FaLessa (folic acid)

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.