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Folic Acid

Folic Acid Dosage

Robert Chad Hakim, PharmD, BCCCPDaisy Chau, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Daisy Chau, PharmD
Last reviewed on September 29, 2026

The average cost for 90 tablets of 1mg of Folic Acid is $9.24 with a free GoodRx coupon. This is 79.41% off the average retail price of $44.88.

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

1mg

90 tablets

$9.24

$0.10

400mcg

30 tablets

$5.02

$0.17

bottle of oral solutionBottle of oral solution

Dosage

Quantity

Price as low as

Price per unit

75ml of 0.2mg/ml

1 bottle

$949.93

$949.93

Typical dosage for Folic Acid

Doses can range from 0.1 mg to 1 mg per day, depending on your age and other factors:

  • Infants: The typical dose is 0.1 mg by mouth once a day.
  • Children younger than 4 years: The typical dose is 0.1 to 0.3 mg by mouth once a day.
  • Children ages 4 and older: The typical dose is 0.4 mg by mouth once a day.
  • Adults: The typical dose is 0.4 mg by mouth once a day.
  • Pregnancy and breastfeeding: The typical dose is 0.8 mg by mouth once a day.

An injectable form of folic acid is also available for people who can't take the medication by mouth.

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