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Home > Drugs > Vitamins > Folic acid
Vitamins

Folic acid

https://themeditary.com/drug/folic-acid-305.html
Medically Reviewed by Sophia Entringer, PharmD TheMediTary.Com | Reviewed: Jul 10, 2023  Additional Content by TheMediTary.Com

Generic name: folic acid [ foe-lik-as-id ]

Drug class: Vitamins

Dosage form: oral tablet (0.4 mg; 0.8 mg; 1 mg)

Availability: Rx and/or otc

Pregnancy & Lactation: Risk data available

Brand names: Folacin-800 (oral/injection)

Contents
Uses Warnings Before Taking Dosage Side effects Interactions FAQ
  • Folic acid (Folic acid [ foe-lik-as-id ])-West-ward 248-1 mg-Yellow-Round Folic acid 1 mg (West-ward 248)
  • Folic acid (Folic acid [ foe-lik-as-id ])-RUGBY 3845-1 mg-Yellow-Round Folic acid 1 mg (RUGBY 3845)
  • Folic acid (Folic acid [ foe-lik-as-id ])-5216 DAN DAN-1 mg-Yellow-Round Folic acid 1 mg (5216 DAN DAN)
  • Folic acid (Folic acid [ foe-lik-as-id ])-AN 516-1 mg-Yellow-Round Folic acid 1 mg (AN 516)
  • View all images

What is Folic acid?

Folic acid is a type of B vitamin that is normally found in foods such as dried beans, peas, lentils, oranges, whole-wheat products, liver, asparagus, beets, broccoli, brussels sprouts, and spinach.

Folic acid helps your body produce and maintain new cells, and also helps prevent changes to DNA that may lead to cancer.

As a medication, folic acid is used to treat folic acid deficiency and certain types of anemia (lack of red blood cells) caused by folic acid deficiency.

Folic acid is sometimes used with other medications to treat pernicious anemia. Folic acid used alone will not treat pernicious anemia and other anemias not related to Vitamin B12 deficiency. Take all of your medications as directed.

Warnings

You should not use this medication if you have ever had an allergic reaction to folic acid.

Before you take folic acid, tell your doctor if you have kidney disease (or if you are on dialysis), an infection, if you are an alcoholic, or if you have any type of anemia that has not been diagnosed by a doctor and confirmed with laboratory testing.

Talk to your doctor about taking folic acid during pregnancy or while breast-feeding. Folic acid is sometimes used in combination with other medications to treat pernicious anemia.

Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

How should I take Folic acid

Take folic acid exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.

Folic acid oral is taken by mouth.

Folic acid injection is given into a muscle, under the skin, or into a vein. A healthcare provider will give you this injection.

Take folic acid tablets with a full glass of water.

Your doctor may occasionally change your dose to make sure you get the best results from this medication.

Store folic acid at room temperature away from moisture and heat.

Dosing information

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
Folic acid Dosage information (more detail)

Before Taking

You should not use this medicine if you have ever had an allergic reaction to folic acid.

Ask a doctor or pharmacist if this medicine is safe to use if you have ever had:

  • epilepsy or other seizure disorder;

  • cirrhosis or other liver disease;

  • kidney disease (or if you are on dialysis);

  • hemolytic anemia;

  • pernicious anemia;

  • anemia that has not been diagnosed by a doctor and confirmed with laboratory testing;

  • an infection; or

  • alcoholism.

Tell your doctor if you are pregnant or breastfeeding. Your dose needs may be different during pregnancy or while you are breastfeeding.

Folic acid pregnancy and breastfeeding warnings (more detail)

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.

What should I know about storage and disposal of this medication?

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).

Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.

It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location – one that is up and away and out of their sight and reach. http://www.upandaway.org

What special dietary instructions should I follow?

Your doctor may tell you to eat more liver, foods prepared from dried yeast, fruit, and fresh leafy green vegetables to increase the folic acid in your diet.

What should I avoid while using Folic acid?

Follow your doctor's instructions about any restrictions on food, beverages, or activity.

Folic acid side effects

Get emergency medical help if you have signs of an allergic reaction to folic acid: hives, rash, itching, skin redness; wheezing, difficult breathing; swelling of your face, lips, tongue, or throat.

Common folic acid side effects may include:

  • nausea, loss of appetite;

  • bloating, gas, stomach pain;

  • bitter or unpleasant taste in your mouth;

  • confusion, trouble concentrating;

  • sleep problems;

  • depression; or

  • feeling excited or irritable.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See more: Folic acid Side Effects

What other drugs will affect Folic acid?

Ask a doctor or pharmacist before using folic acid with any other medications, especially:

  • methotrexate;

  • nitrofurantoin;

  • pyrimethamine;

  • tetracycline;

  • a barbiturate such as phenobarbital or secobarbital; or

  • seizure medicine such as phenytoin or primidone.

This list is not complete. Other drugs may interact with folic acid, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

What other information should I know?

Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to folic acid.

Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Combination Products

  • Folvron® (containing Ferrous Sulfate, Folic Acid)

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More about Folic acid (Folic acid [ foe-lik-as-id ])

Dosage information
Folic acid Side Effects
Patient tips
During pregnancy
Drug images
Side effects
Drug class: Vitamins

Patient resources

Advanced Reading: Folic acid (Oral, Injection)
Folic Acid Capsules and Tablets
Folic Acid Injection

Related treatment guides

Vitamin/Mineral Supplementation and Deficiency
Anemia, Megaloblastic
Folic Acid Deficiency
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Contents
Uses Warnings Before Taking Dosage Side effects Interactions FAQ
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