Risedronic acid

Risedronic acid
Clinical data
Trade names	Actonel, Atelvia, Benet, others
AHFS/Drugs.com	Monograph
License data	US DailyMed: Risedronic;
Pregnancy; category	AU: B3;
Routes of; administration	By mouth
ATC code	M05BA07 (WHO) ;
Legal status
Legal status	AU: S4 (Prescription only); UK: POM (Prescription only); US: ℞-only; In general: ℞ (Prescription only);
Pharmacokinetic data
Bioavailability	0.63%
Protein binding	~24%
Metabolism	None
Elimination half-life	1.5 h
Excretion	Kidney and fecal
Identifiers
	IUPAC name (1-hydroxy-1-phosphono-2-pyridin-3-yl-ethyl)phosphonic acid;
CAS Number	105462-24-6 ;
PubChem CID	5245;
IUPHAR/BPS	3176;
DrugBank	DB00884 ;
ChemSpider	5055 ;
UNII	KM2Z91756Z;
KEGG	D00942; D03234;
ChEMBL	ChEMBL923 ;
PDB ligand	RIS (PDBe, RCSB PDB);
CompTox Dashboard (EPA)	DTXSID2023563 ;
ECHA InfoCard	100.116.436
Chemical and physical data
Formula	C7H11NO7P2
Molar mass	283.113 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES OC(Cc1cccnc1)(P(=O)(O)O)P(=O)(O)O;
	InChI InChI=1S/C7H11NO7P2/c9-7(16(10,11)12,17(13,14)15)4-6-2-1-3-8-5-6/h1-3,5,9H,4H2,(H2,10,11,12)(H2,13,14,15) ; Key:IIDJRNMFWXDHID-UHFFFAOYSA-N ;
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Risedronic acid, often used as its sodium salt risedronate sodium, is a bisphosphonate. It slows down the cells which break down bone. It's used to treat or prevent osteoporosis, and treat Paget's disease of bone. It is taken by mouth.

It was patented in 1984 and approved for medical use in 1998.