Risedronic acid

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Risedronic acid
Clinical data
AHFS/Drugs.comInternational Drug Names
  • AU: B3
  • US: C (Risk not ruled out)
Routes of
ATC code
Legal status
Legal status
Pharmacokinetic data
Protein binding~24%
Elimination half-life1.5 h
ExcretionRenal and fecal
CAS Number
PubChem CID
ECHA InfoCard100.116.436 Edit this at Wikidata
Chemical and physical data
Molar mass283.112 g/mol
3D model (JSmol)
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Risedronic acid (INN) often used as its sodium salt risedronate sodium (USAN) is a bisphosphonate used to strengthen bone, treat or prevent osteoporosis, and treat Paget's disease of bone. It is produced and marketed by Warner Chilcott, Sanofi-Aventis, and in Japan by Takeda under the trade names Actonel, Atelvia, and Benet. It is also available in a preparation that includes a calcium carbonate supplement, as Actonel with Calcium.


In January 2006 P&G and its marketing partner Sanofi-Aventis filed a Lanham Act false claims lawsuit against rival drugmakers Roche and GlaxoSmithKline claiming false advertising about Boniva.[1] The manufacturers of Boniva, a rival bisphosphonate, were accused in the suit of causing a "serious public health risk" through misrepresentation of scientific findings. In a ruling on September 7, 2006 U.S. District Judge Paul A. Crotty rejected P&G's attempted injunction. P&G was criticized for attempting to "preserve its market share by denigrating Boniva". Judge Crotty wrote that "Roche was clearly entitled to respond with its own data, provided that the data was truthfully and accurately presented".[2]

In 2006, P&G faced controversy over its handling of clinical research involving risedronate (News Reports[3] and discussion).[4]

In common with other bisphosphonate drugs, risedronate appears to be associated with the rare side effect osteonecrosis of the jaw, often preceded by dental procedures inducing trauma to the bone.

See also[edit]


  1. ^ "P&G Press statement". Uk.pg.com. Retrieved 2013-03-01.
  2. ^ NY fed judge finds promotions for bone drug Boniva are fair Associated Press, 7 Sept 2006[dead link]
  3. ^ http://www.thejabberwock.org/wiki/index.php?title=Actonel_Case_Media_Reports
  4. ^ "Scientific Misconduct Blog". Scientific-misconduct.blogspot.com. Retrieved 2013-03-01.

External links[edit]