Hazard
Human systemic effects.
Chemical Properties
Fine White to Off-White Crystalline Powder
Originator
Procter Gamble (US)
Uses
Risedronic Acid is a pyridinyl biphosphonate bone resorption inhibitor.
Definition
ChEBI: Risedronate sodium is a 1,1-bis(phosphonic acid).
Brand name
Actonel (Procter & Gamble).
Biological Activity
Orally active biphosphonate that inhibits farnesyl diphosphate (FPP) synthase. Exhibits antiproliferative and proapoptotic activity in numerous tumor cell lines and inhibits osteoclast-mediated bone reabsorption in vivo .
Biochem/physiol Actions
Risedronate sodium is a bisphosphonate bone resorption inhibitor. It has an affinity for hydroxyapatite crystals in bone and acts as an antiresorptive agent and is an inhibitor of farnesyl diphosphate (FPP) synthase, which results in downstream inhibition of osteoclast activity and reduced bone resorption and turnover. Risedronate sodium has been used to treat postmenopausal osteoporosis and Paget′s disease.
Clinical Use
Bisphosphonate:
Treatment and prevention of osteoporosis (including
corticosteroid induced)
Paget’s disease
Drug interactions
Potentially hazardous interactions with other drugs
Calcium-containing substances: avoid for 2 hours
before and after administration.
Metabolism
The mean bioavailability of risedronate is 0.63% in
the fasting state, and there is no evidence of systemic
metabolism of risedronate sodium.
About half of the absorbed portion is excreted in the
urine within 24 hours; the remainder is sequestered
to bone for a prolonged period. Unabsorbed drug is
eliminated unchanged in the faeces.
