Meds & supplements › Risedronate
Medicine
Risedronate sodium delayed-release tablets are bisphosphonate in a delayed-release formulation and is indicated for treatment of postmenopausal osteoporosis Limitations of Use Optimal duration of use has not been determined.
Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗
ACTONEL is a prescription medicine used to:
It is not known how long ACTONEL works for the treatment and prevention of osteoporosis. You should see your doctor regularly to determine if ACTONEL is still right for you.
ACTONEL is not for use in children.
ACTONEL can cause serious side effects including:
1. Esophagus problems.
Some people who take ACTONEL may develop problems in the esophagus (the tube that connects the mouth and the stomach). These problems include irritation, inflammation, or ulcers of the esophagus which may sometimes bleed.
2. Low calcium levels in your blood (hypocalcemia).
ACTONEL may lower the calcium levels in your blood. If you have low blood calcium before you start taking ACTONEL, it may get worse during treatment. Your low blood calcium must be treated before you take ACTONEL. Most people with low blood calcium levels do not have symptoms, but some people may have symptoms. Call your doctor right away if you have symptoms of low blood calcium such as:
Your doctor may prescribe calcium and vitamin D to help prevent low calcium levels in your blood, while you take ACTONEL. Take calcium and vitamin D as your doctor tells you to.
3. Severe jaw bone problems (osteonecrosis).
Severe jaw bone problems may happen when you take ACTONEL. Your doctor should examine your mouth before you start ACTONEL. Your doctor may tell you to see your dentist before you start ACTONEL. It is important for you to practice good mouth care during treatment with ACTONEL.
4. Bone, joint, or muscle pain.
Some people who take ACTONEL develop severe bone, joint, or muscle pain.
5. Unusual breaks in thigh and other bones.
Some people have had unusual bone breaks, including the thigh bone, when taking ACTONEL. A break in the thigh bone can feel like a new pain in your hip, groin, or thigh. People taking ACTONEL can also have breaks in other bones.
Call your doctor right away if you have any of these side effects.
After swallowing ACTONEL tablet, wait at least 30 minutes:
Do not lie down for at least 30 minutes after you take ACTONEL and after you eat your first food of the day.
If you miss a dose of ACTONEL, do not take it later in the day. Take your missed dose the next morning and then return to your normal schedule. Do not take 2 doses at the same time.
If you miss more than 2 doses of ACTONEL in a month, call your doctor for instructions.
If you take too much ACTONEL, call your doctor. Do not try to vomit. Do not lie down.
ACTONEL may cause serious side effects:
The most common side effects of ACTONEL are:
You may get allergic reactions, such as hives, swelling of your face, lips, tongue, or throat.
Tell your doctor if you have any side effect that bothers you or that does not go away.
These are not all the possible side effects of ACTONEL. For more information, ask your doctor or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Do not take ACTONEL if you:
Before you start ACTONEL, be sure to talk to your doctor if you:
Especially tell your doctor if you take:
Tell your doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins and herbal supplements. Certain medicines may affect how ACTONEL works.
Know the medicines you take. Keep a list of them and show it to your doctor and pharmacist each time you get a new medicine.
Safely throw away medicine that is out of date or no longer needed.
Keep ACTONEL and all medicines out of the reach of children.
General information about the safe and effective use of ACTONEL.
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use ACTONEL for a condition for which it was not prescribed. Do not give ACTONEL to other people, even if they have the same symptoms you have. It may harm them.
This Medication Guide summarizes the most important information about ACTONEL. If you would like more information, talk with your doctor. You can ask your doctor or pharmacist for information about ACTONEL that is written for health professionals.
For more information, go to www.Actonel.com or call 1-800-633-9110.
sofidex [Internet]. Daloreum; c2026. Risedronate; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/risedronate
sofidex. (2026, August 2). Risedronate. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/risedronate
Risedronate. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/risedronate
The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.