Do NOT use Cyklokapron if:

• you are allergic to any ingredient in Cyklokapron
• you have blood clots (eg, in the leg, lung, eye, brain), a history of blood clots, or conditions that may increase your risk of blood clots (eg, certain heart valve problems, certain types of irregular heartbeat, certain blood clotting problems)
• you have bleeding in the brain, blood in the urine, or bleeding related to kidney problems
• you have a disturbance of color vision
• you have irregular menstrual bleeding of unknown cause
• you are using medicine to help your blood clot (eg, factor IX complex concentrates or anti-inhibitor coagulant concentrates)

Contact your doctor or health care provider right away if any of these apply to you.

Some medical conditions may interact with Cyklokapron. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

• if you are pregnant, planning to become pregnant, or are breast-feeding
• if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
• if you have allergies to medicines, foods, or other substances
• if you have a history of kidney problems, diabetes, polycystic ovary syndrome, bleeding or blood clotting problems, a certain blood problem called disseminated intravascular coagulation (DIC), eye or vision problems, or bleeding in the brain
• if you are very overweight
• if you have a personal or family history of blood clots or endometrial cancer
• if you also take estrogen or tamoxifen

Some MEDICINES MAY INTERACT with Cyklokapron. Tell your health care provider if you are taking any other medicines, especially any of the following:
Hormonal birth control (eg, birth control pills), medicines to help your blood clot (eg, anti-inhibitor coagulant concentrates, factor IX complex concentrates), or tretinoin (all-trans retinoic acid) because the risk of blood clots may be increased
Desmopressin, hydrochlorothiazide, nitroglycerin, ranitidine, or sulbactam-ampicillin because the risk of heart attack may be increased
Anticoagulants (eg, warfarin) because they may decrease Cyklokapron's effectiveness

This may not be a complete list of all interactions that may occur. Ask your health care provider if Cyklokapron may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Cyklokapron while you are pregnant. Cyklokapron is found in breast milk. If you are or will be breast-feeding while you are using Cyklokapron, check with your doctor. Discuss any possible risks to your baby.

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Diarrhea; nausea; vomiting.
Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); calf or leg pain, swelling, or tenderness; chest pain; confusion; coughing up blood; decreased urination or difficulty urinating; eye problems; fainting; numbness of an arm or leg; one-sided weakness; pain, swelling, or redness at the injection site; seizures; severe or persistent dizziness or light-headedness; shortness of breath; slurred speech; sudden, severe headache or vomiting; vision changes or problems (eg, disturbance of color vision, sharpness, or field of vision).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects.