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Calcitonin is a naturally occurring hormone. It helps regulate
calcium levels in your body and is involved in the
process of bone building. When taken by shot or nasal spray, it slows the rate
of bone thinning. It also relieves pain that occurs when the bones in the spine
(vertebrae) break and collapse on top of each other (spinal compression
Calcitonin is used in women with
osteoporosis to help reduce bone loss.
It may be prescribed for women who are more than 5 years beyond
menopause and who do not tolerate bisphosphonate medicines.
Calcitonin may be used in men with osteoporosis who have normal
levels of the male sex hormone
testosterone or whose osteoporosis does not get better
with testosterone treatment.
Calcitonin may relieve pain caused by spinal compression
Calcitonin slows thinning of bone, and may help relieve pain from broken bones
caused by osteoporosis.footnote 1 It may also decrease the risk of fractures in the spine.footnote 2
All medicines have side effects. But many people don't feel the side effects, or they are able to deal with them. Ask your pharmacist about the side effects of each medicine you take. Side effects are also listed in the information that comes with your medicine.
Here are some important things to think about:
Call 911 or other emergency services right away if you have:
Call your doctor if you have:
Common side effects include:
Common side effects of injected calcitonin include:
Common side effects of nasal calcitonin include:
See Drug Reference for a full list of side effects. (Drug Reference
is not available in all systems.)
It may take up to 2 weeks before pain relief is noticed. Not all
people who take calcitonin get relief from their pain.
Medicine is one of the many tools your doctor has to treat a health problem. Taking medicine as your doctor suggests will improve your health and may prevent future problems. If you don't take your medicines properly, you may be putting your health (and perhaps your life) at risk.
There are many reasons why people have trouble taking their medicine. But in most cases, there is something you can do. For suggestions on how to work around common problems, see the topic Taking Medicines as Prescribed.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
Complete the new medication information form (PDF)(What is a PDF document?) to help you understand this medication.
Drugs for postmenopausal osteoporosis (2011).
Treatment Guidelines From The Medical Letter, 9(111): 67–74.
Vestergaard P, et al. (2011). Fracture prevention in
postmenopausal women, search date September 2010. BMJ Clinical Evidence. Available online:
ByHealthwise StaffPrimary Medical ReviewerKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerCarla J. Herman, MD, MPH - Geriatric Medicine
Current as ofNovember 14, 2014
Current as of:
November 14, 2014
Kathleen Romito, MD - Family Medicine & Carla J. Herman, MD, MPH - Geriatric Medicine
How this information was developed to help you make better health decisions.
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