risedronate
Bisphosphonate · Disorders of bone metabolism
Also known as risedronate sodium
Mechanism
Risedronate is a nitrogen-containing (third-generation) bisphosphonate that binds to hydroxyapatite in bone and is internalized by osteoclasts during resorption. Within osteoclasts, it inhibits farnesyl pyrophosphate synthase in the mevalonate pathway, preventing protein prenylation of small GTPases essential for osteoclast function, leading to osteoclast apoptosis. Its pyridinyl side chain provides high potency, and weekly or monthly dosing regimens are available due to prolonged skeletal binding.
Indications
Dosing
- Adult
- with dose and duration of therapy. g Bone-protection treatment should be started at the onset of therapy in patients who are at a high risk of fracture. If glucocorticoid therapy is stopped, the need to continue bone-protection treatment should be reviewed. However, bone-protection treatment should be continued with longterm glucocorticoid therapy.…
Pharmacokinetics
Contraindications
- abnormalities that delay esophageal emptying
- Gastroesophageal reflux
- Peptic ulcer
- Renal impairment (general BPN contraindications)
Side effects
- osteonecrosis of the jaw
- fractures of the femoral shaft
- esophageal ulcers
- esophageal erosions
Related guidelines
Other Bisphosphonate drugs
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Sources: KD Tripathi 7e, Goodman & Gilman 14e, BNF·Verified: 2026-05-13 · House clinical team