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• Dosage of Folcidin in details
• Folcidin interactions
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Dosage of Folcidin in details

Folcidin Dosage

Applies to the following strength(s): 1 mg; 0.4 mg; 5 mg/mL; 0.8 mg

The information at Drugs.com is not a substitute for medical advice. Always consult your doctor or pharmacist.

Usual Adult Dose for:

• Megaloblastic Anemia
• Folcidin Deficiency

Usual Pediatric Dose for:

• Folcidin Deficiency
• Vitamin/Mineral Supplementation

Additional dosage information:

• Renal Dose Adjustments
• Liver Dose Adjustments
• Dose Adjustments
• Dialysis
• Other Comments

Usual Adult Dose for Megaloblastic Anemia

1 mg orally, intramuscularly, subcutaneously or IV once a day. May continue until clinical symptoms of folate deficiency and the hematological profile have normalized.

Usual Adult Dose for Folcidin Deficiency

400 to 800 mcg orally, intramuscularly, subcutaneously or IV once a day.

Women of childbearing age, pregnant, and lactating women: 800 mcg orally, intramuscularly, subcutaneously or IV once a day.

Usual Pediatric Dose for Folcidin Deficiency

Infant:

0.1 mg orally, intramuscularly, subcutaneously or IV once a day.

Child:

Less than 4 years: up to 0.3 mg orally, intramuscularly, subcutaneously or IV once a day.

4 years or older: 0.4 mg orally, intramuscularly, subcutaneously or IV once a day.

Usual Pediatric Dose for Vitamin/Mineral Supplementation

Recommended daily allowance (RDA):

Premature neonates: 50 mcg/day (15 mcg/kg/day).

Full-term neonates and infants 1 to 6 months: 25 to 35 mcg/day.

Children:

1 to 3 years: 150 mcg/day.

4 to 8 years: 200 mcg/day.

9 to 13 years: 300 mcg/day.

14 years and older: 400 mcg/day.

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dose Adjustments

Rarely, a dosage of 2 mg/day may be required, particularly in patients with malabsorption, alcoholism, chronic hemolysis, chronic exfoliative skin disease or who are on concomitant anticonvulsant therapy.

Dialysis

Folcidin is removed by both hemodialysis and peritoneal dialysis. The amount removed varies with type equipment used.

Because folate may accumulate in patients with end-stage renal disease, side effects may be more likely in this patient who is undergoing dialysis. Once this patient's body stores of folate are replete, three times a week dosing may be just as beneficial as once daily dosing but should portend a lower risk of side effects.

Other Comments

The recommended daily allowance of Folcidin for adult males and females ranges from 150 to 200 and 150 to 180 mcg/day, respectively.

There is a potential danger in administering Folcidin to patients with undiagnosed anemia, since Folcidin may obscure the diagnosis of pernicious anemia by alleviating the hematologic manifestations of the disease while allowing the neurologic complications to progress.

Severe megaloblastic anemia may require therapy for 4 to 5 weeks. Once stabilized, if dietary intake is inadequate, maintenance therapy can be started.

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Consumer resources

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• Other brands: Folacin-800, Folcidin

Professional resources

• Folcidin (AHFS Monograph)
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Related treatment guides

• Folcidin Deficiency
• Vitamin/Mineral Supplementation and Deficiency
• Anemia, Megaloblastic

What other drugs will affect Folcidin?

The dosages of other medications you take may need to be changed while you are taking Folcidin.

Tell your doctor about all other medications you use, especially:

• phenytoin (Dilantin);

• methotrexate (Rheumatrex, Trexall);

• nitrofurantoin (Macrodantin, Macrobid);

• pyrimethamine (Daraprim);

• tetracycline (Ala-Tet, Brodspec, Sumycin);

• a barbiturate such as butabarbital (Butisol), secobarbital (Seconal), pentobarbital (Nembutal), or phenobarbital (Solfoton); or

• seizure medication such as phenytoin (Dilantin) or primidone (Mysoline).

This list is not complete and there may be other drugs that can interact with Folcidin. 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.

Folcidin interactions

Medications that interfere with your bodys ability to use folate may also increase the need for this vitamin. Medications can interfere with folate utilization, including: anticonvulsant medications (such as phenytoin, and primidone) metformin (sometimes prescribed to control blood sugar in type 2 diabetes) sulfasalazine (used to control inflammation associated with Crohns disease and ulcerative colitis) triamterene (a diuretic) Methotrexate There has been concern about the interaction between vitamin B12 and Folcidin. Folcidin supplements can correct the anemia associated with vitamin B12 deficiency. Unfortunately, Folcidin will not correct changes in the nervous system that result from vitamin B12 deficiency. Permanent nerve damage could theoretically occur if vitamin B12 deficiency is not treated. Therefore, intake of supplemental Folcidin should not exceed 1000 micrograms (g, sometimes mcg) per day to prevent Folcidin from masking symptoms of vitamin B12 deficiency. It is important for older adults to be aware of the relationship between Folcidin and vitamin B12 because they are at greater risk of having a vitamin B12 deficiency. If you are 50 years of age or older, ask your physician to check your B12 status before you take a supplement that contains Folic Acid.

References

1. DailyMed. "ASCORBIC ACID; BIOTIN; CYANOCOBALAMIN; DEXPANTHENOL; ERGOCALCIFEROL; FOLIC ACID; NIACINAMIDE; PHYTONADIONE; PYRIDOXINE HYDROCHLORIDE; RIBOFLAVIN 5'-PHOSPHATE SODIUM; THIAMINE HYDROCHLORIDE; VITAMIN A; VITAMIN E: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailyme... (accessed September 17, 2018).
2. FDA/SPL Indexing Data. "935E97BOY8: The UNique Ingredient Identifier (UNII) is an alphanumeric substance identifier from the joint FDA/USP Substance Registration System (SRS).". https://www.fda.gov/ForIndustry/Data... (accessed September 17, 2018).
3. MeSH. "Vitamin B Complex". https://www.ncbi.nlm.nih.gov/mesh/68... (accessed September 17, 2018).

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Information checked by Dr. Sachin Kumar, MD Pharmacology