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risedronate

Bisphosphonate · Disorders of bone metabolism

Also known as risedronate sodium

BisphosphonateDisorders of bone metabolism
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
none in our sources
PREGNANCY
not curated

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

Prevention and treatment of osteoporosis in postmenopausal womenProphylaxis and treatment of glucocorticoid-induced osteoporosisTreatment of osteoporosis in menPaget diseasetreatment and prevention of osteoporosisglucocorticoid-associated osteoporosisOsteoporosisPaget’s disease

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

Bioavailability
<1%

Contraindications

  • abnormalities that delay esophageal emptying
  • Gastroesophageal reflux
  • Peptic ulcer
  • Renal impairment (general BPN contraindications)

Side effects

Common
heartburnesophageal irritationesophagitisabdominal paindiarrheaGastric irritation
Serious
  • 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