Strontium

How does Strontium work?

A special form of strontium called strontium ranelate can increase bone formation and prevent bone loss when used in postmenopausal women with osteoporosis. It's not known if strontium contained in dietary supplements has these effects.

A radioactive form of strontium may kill some cancer cells. This type of strontium is not available in dietary supplements.

There is some interest in using strontium for osteoarthritis because developing research suggests it might boost the formation of collagen and cartilage in joints.

There is also interest in studying strontium for preventing tooth decay because researchers have noticed fewer dental caries in some population groups who drink public water that contains relatively high levels of strontium.

Are there safety concerns?

Strontium is LIKELY SAFE when taken by mouth in amounts found in food. The typical diet includes 0.5 to 1.5 mg/day of strontium.

The prescription form of strontium known as strontium-89 chloride is also LIKELY SAFE when given intravenously (by IV) under the supervision of a healthcare provider.

Toothpastes (Sensodyne-SC) that contain strontium are also LIKELY SAFE and have received safety approval from the U.S. Food and Drug Administration (FDA).

Taking another prescription form of strontium known as strontium ranelate by mouth for up to 56 months is POSSIBLY SAFE. Strontium ranelate might cause side effects such as stomach pain, diarrhea, and headache in some people.

Taking very high doses of strontium by mouth is POSSIBLY UNSAFE. High doses of strontium might damage the bones.

There's not enough information to know if the form of strontium contained in dietary supplements is safe.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Strontium is LIKELY SAFE during pregnancy and breast-feeding when taken by mouth in food amounts or when used in toothpaste (Sensodyne-SC).

Strontium-89 is LIKELY UNSAFE during pregnancy and breast-feeding. It is a radioactive material that might harm the fetus. It may also pass into breast milk and could harm a nursing infant.

There is not enough reliable information about the safety of taking strontium in greater amounts than found in foods or in supplements if you are pregnant or breast-feeding. Stay on the safe side and avoid use.

Paget's disease (a bone disease): The bones of people with Paget's disease seem to take up more strontium than normal. It's not known how important this finding is for health.

Kidney problems: Strontium is eliminated by the kidneys and can build up in people with poor kidney function. Use strontium supplements with caution if you have kidney disease. Strontium ranelate should not be used if kidney disease is advanced.

Blood clotting disorders: Strontium ranelate is associated with a small increased risk of blood clots. There is some concern that strontium might be more likely to cause blot clots in people with blood clotting disorders. It's best not to use strontium if you have a clotting disorder.


Therapeutic Research Faculty copyright

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Health Solutions From Our Sponsors