Before taking strontium-89 chloride,

• tell your doctor and pharmacist if you are allergic to strontium-89 chloride or any other drugs.
• tell your doctor and pharmacist what prescription and nonprescription medications you are taking, especially aspirin and vitamins.
• tell your doctor if you have or have ever had bone marrow disease, blood disorders, or kidney disease.
• you should know that strontium-89 chloride may interfere with the normal menstrual cycle (period) in women and may stop sperm production in men. However, you should not assume that you cannot get pregnant or that you cannot get someone else pregnant. Women who are pregnant or breast-feeding should tell their doctors before they begin taking this drug. You should not plan to have children while receiving chemotherapy or for a while after treatments. (Talk to your doctor for further details.) Use a reliable method of birth control to prevent pregnancy. Strontium-89 chloride may harm the fetus.
• notify any health care professional (especially other doctors) giving you treatment that you will be taking strontium-89 chloride.
• do not have any vaccinations (e.g., measles or flu shots) without talking to your doctor.

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at https://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

Side effects from strontium-89 chloride are common and include:

• increased pain starting 2 to 3 days after treatment and lasting 2 to 3 days
• flushing
• diarrhea

Tell your doctor if the following symptom is severe or lasts for several hours:

• fatigue

If you experience any of the following symptoms, call your doctor immediately:

• unusual bruising or bleeding
• no decrease in pain 7 days after treatment
• fever
• chills

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).