Generic Name: etidronate (e ti DROE nate)
Brand Name: Didronel, Didronel I.V.
Medically reviewed on November 8, 2017
What is etidronate?
Etidronate is a bisphosphonate (bis FOS fo nayt) medicine that alters bone formation and breakdown in the body. This can slow bone loss and may help prevent bone fractures.
Etidronate is used to treat Paget's disease of bone. Etidronate is also used to treat conditions of irregular bone growth due to total hip replacement or spinal cord injury.
Etidronate may also be used for purposes not listed in this medication guide.
You should not take etidronate if you have a condition called osteomalacia (softening of the bones).
Before taking this medicine
You should not take etidronate if you are allergic to it, or if you have a condition called osteomalacia (softening of the bones).
To make sure etidronate is safe for you, tell your doctor if you have:
low levels of calcium in your blood;
a dental problem (you may need a dental exam before you begin taking etidronate); or
if you have had a recent bone fracture.
In rare cases, etidronate may cause bone loss (osteonecrosis) in the jaw. Symptoms include jaw pain or numbness, red or swollen gums, loose teeth, or slow healing after dental work. The longer you use etidronate, the more likely you are to develop this condition.
Osteonecrosis of the jaw may be more likely if you have cancer or received chemotherapy, radiation, or steroids. Other risk factors include blood clotting disorders, anemia (low red blood cells), and a pre existing dental problem.
Talk with your doctor about the risks and benefits of using etidronate.
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
It is not known whether etidronate passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
How should I take etidronate?
Etidronate is usually taken once per day. Follow all directions on your prescription label. Your doctor may occasionally change your dose. Do not use this medicine in larger or smaller amounts or for longer than recommended.
When taking etidronate for total hip replacement, you may need to start the medicine 1 month before your surgery.
Take etidronate at least 2 hours before you eat or drink anything, especially foods that are high in calcium such as milk, cheese, or yogurt.
Your doctor will need to check your progress while you are using etidronate.
Etidronate is only part of a complete program of treatment that may also include diet changes and taking calcium and vitamin supplements. Follow your doctor's instructions very closely.
Pay special attention to your dental hygiene while taking etidronate. Brush and floss your teeth regularly. If you need to have any dental work (especially surgery), tell the dentist ahead of time that you are using etidronate.
Your doctor will determine how long to treat you with this medicine. Etidronate is often given for only 3 to 6 months.
Store at room temperature away from moisture and heat.
After you stop taking etidronate, you must stay off the medication for at least 90 days before starting etidronate therapy again.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking etidronate?
Etidronate side effects
Get emergency medical help if you have signs of an allergic reaction: hives; wheezing, difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using etidronate and call your doctor at once if you have:
severe pain in your joints, bones, or muscles;
jaw pain, numbness, or swelling;
severe diarrhea; or
low calcium levels--muscle spasms or contractions, numbness or tingly feeling (around your mouth, or in your fingers and toes).
Common side effects may include:
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.
See also: Side effects (in more detail)
What other drugs will affect etidronate?
Tell your doctor about all your current medicines and any you start or stop using, especially:
This list is not complete. Other drugs may interact with etidronate, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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More about etidronate
- Etidronate Side Effects
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- Drug class: bisphosphonates
Other brands: Didronel