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 Folic Acid 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 Folic Acid Deficiency:
Infant:
0.1 mg orally, intramuscularly, subcutaneously or IV once a day.
Child:
Initial dose: 1 mg orally, intramuscularly, subcutaneously or IV once a day.
Maintenance dose:
1 to 10 years: 0.1 to 0.4 mg orally, intramuscularly, subcutaneously or IV once a day.
> 10 years: 0.5 orally, intramuscularly, subcutaneously or IV once a day.
 Detailed Folic acid dosage information
What happens if I miss a dose?
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
