Tranexamic acid prevents enzymes in the body from breaking down blood clots.

Cyklokapron is used to prevent bleeding in people with hemophilia who need to have a tooth pulled. This medication is usually given just before the dental procedure, and daily for up to 8 days afterward.

Tranexamic acid may also be used for purposes not listed in this medication guide.

You should not use Cyklokapron if you are color blind, if you have problems with the blood vessels in your eyes, or if you have ever had a stroke, blood clot, or bleeding in your brain.

Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.

Cyklokapron is given as an infusion into a vein just before your tooth is pulled. You may need to keep using Cyklokapron for up to 8 days afterward.

A healthcare provider will give your first dose and may teach you how to properly use the medication by yourself.

Read and carefully follow any Instructions for Use provided with your medicine. Ask your doctor or pharmacist if you don't understand all instructions.

Your vision may need to be tested while you are using tranexamic acid.

Store this medicine at room temperature. Prepare an injection only when you are ready to give it.

Each vial or ampule is for one use only. Throw it away after one use, even if there is still medicine left inside.

You should not use Cyklokapron if you are allergic to tranexamic acid, or if you have:

• problems with the blood vessels in your eyes;

• color blindness; or

• a history of stroke, blood clot, or bleeding in your brain.

Tell your doctor if you have ever had:

• kidney disease;

• a bladder or kidney infection; or

• leukemia.

Tell your doctor if you are pregnant or breastfeeding.

Call your doctor for instructions if you miss a dose.

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

Overdose symptoms may include headache, confusion, vision problems, vomiting, diarrhea, numbness or weakness, problems with speech or balance, feeling light-headed, or fainting.

Avoid driving or hazardous activity until you know how Cyklokapron will affect you. Your reactions could be impaired.

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Cyklokapron may cause serious side effects. Stop using Cyklokapron and call your doctor at once if you have:

• problems with your vision (including color vision);

• a light-headed feeling, like you might pass out;

• a seizure;

• painful or difficult urination, blood in your urine;

• signs of a stroke--sudden numbness or weakness (especially on one side of the body), severe headache, slurred speech, balance problems;

• signs of a blood clot in the lung--chest pain, sudden cough, wheezing, rapid breathing, coughing up blood; or

• signs of a blood clot in your leg--swelling, warmth, or redness in an arm or leg.

Common side effects include:

• nausea, vomiting, diarrhea;

• dizziness, feeling light-headed;

• mild itching or rash; or

• feeling unusually happy.

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:

• any type of medication to treat a bleeding episode or a blood clot; or

• factor IX complex (Bebulin, Bebulin VH, Profilnine, and others).

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