1. Take the Blood Disorders Quiz

What happens if I miss a dose (FA-8, Folacin-800)?

Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose (FA-8, Folacin-800)?

Seek emergency medical attention if you think you have used too much of this medicine.

Overdose symptoms may include numbness or tingling, mouth or tongue pain, weakness, tired feeling confusion, or trouble concentrating.

What should I avoid while taking folic acid (FA-8, Folacin-800)?

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

What other drugs will affect folic acid (FA-8, Folacin-800)?

The dosages of other medications you take may need to be changed while you are taking folic acid.

Tell your doctor about all other medications you use, especially:

• phenytoin (Dilantin);
• methotrexate (Rheumatrex, Trexall);
• nitrofurantoin (Macrodantin, Macrobid);
• pyrimethamine (Daraprim);
• tetracycline (Ala-Tet, Brodspec, Sumycin);
• a barbiturate such as butabarbital (Butisol), secobarbital (Seconal), pentobarbital (Nembutal), or phenobarbital (Solfoton); or
• seizure medication such as phenytoin (Dilantin) or primidone (Mysoline).

This list is not complete and there may be other drugs that can interact with folic acid. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about folic acid.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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