Dosing & Uses
Dosage Forms & Strengths
Tablet:
- 400mcg
- 800mcg
- 1mg
Injectable solution:
- 5mg/mL
Nutritional Supplementation
Recommended daily allowance (RDA)
- Males: 400 mcg/day PO
- Females: 400-800 mcg/day PO
- Pregnant women: 600 mcg/day PO
- Nursing women: 500 mcg/day PO
- Upper limit: 1 mg/day PO
Neural Tube Defects Prophylaxis
- Females of childbearing potential: 400 mcg/day PO
- Pregnancy women: 600 mcg/day PO
- Females with high risk or family history of neural tube defects: 4 mg/day PO
Folic Acid Deficiency
- 0.4-1 mg PO/IV/IM/SC once daily
Methanol Toxicity
- 50-75 mg IV q4hr for 24 hr
Methotrexate Toxicity Prophylaxis (Off-label)
- 1 mg PO qDay; may increase up to 5 mg/day if toxicity emerges