Each instruction for medications containing folic acid lists contraindications. The latter include:
• individual intolerance to the substance;
• malignant tumors;
• iron metabolism disorder (hemochromatosis);
• pernicious anemia (problems with the absorption of vitamin B12);
• lack of cobalamin in the body;
• childhood;
• hemosiderosis (excessive accumulation of iron in tissues);
• allergic reaction.
In some cases, the body may not absorb folacin. This often happens if a woman:
• smokes;
• drinks alcoholic beverages;
• does not get enough sleep;
• often finds himself in stressful situations;
• takes medications containing hormones.
The simultaneous use of certain medications and folic acid is also contraindicated, since this contributes to the rapid removal of the vitamin from the body. Such medications include:
• painkillers;
• antibiotics;
• antacids;
• cytostatic agents;
• cholestyramine;
• anticonvulsants;
• acetylsalicylic acid;
• contraceptives;
• glucocorticoids;
• nitrofurans.
Vitamin B9 has no toxic effects on the human body. If the prescribed dosage is violated or the drug is taken for a long time, adverse reactions are possible in the form of:
• rash;
• allergies;
• hyperthermia;
• disorders of the digestive tract;
• imbalance in kidney function;
• anemia;
• increased excitability;
• bronchospasm.