Folacin-800 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.

Folacin-800 helps your body produce and maintain new cells, and also helps prevent changes to DNA that may lead to cancer.

As a medication, Folacin-800 is used to treat this medicine deficiency and certain types of anemia (lack of red blood cells) caused by this medicine deficiency.

Folacin-800 is sometimes used with other medications to treat pernicious anemia. This medicine used alone will not treat pernicious anemia and other anemias not related to Vitamin B12 deficiency. Take all of your medications as directed.

Folacin-800 may also be used for other purposes not listed in this medication guide.

Use only as directed. Tell your doctor if you use other medicines or have other medical conditions or allergies.

Use exactly as directed on the label, or as prescribed by your doctor.

Folacin-800 oral is taken by mouth.

Folacin-800 injection is given into a muscle, under the skin, or into a vein. A healthcare provider will give you this injection.

Store Folacin-800 at room temperature away from moisture and heat.

You should not use Folacin-800 if you have ever had an allergic reaction to Folacin-800.

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.

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.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

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

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

Common side effects of Folacin-800 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.

Tell your doctor about all your other medicines, 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 affect Folacin-800, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.