OSTEOS

MEDIS
Identification
- Active ingredient (INN)
- ACIDE RISEDRONIQUE SEL MONOSODIQUE
- Internal code
- 21 C 041
- Country of Origin
- Algeria
- Pharmaceutical form
- Tablet
- Prescription List
- Highly Regulated (List I)
- Packaging
- b/30

DAWA Clinical Workbench v2.0
Information may not be accurate. Always consult a physician, pharmacist, or specialist before acting on any data shown here.
Description
Risedronic acid is a third generation bisphosphonate that is used for the treatment of some forms of osteoperosis and Paget's disease Label 1, 2.
It functions by preventing resorption of bone Label 1.
Indications
Risedronic acid is indicated for the treatment of osteoperosis in men, treatment of Paget's disease, treatment and prevention of osteoperosis in postmenopausal women, and treatment and prevention of glucocorticoid-induced osteoperosis Label.
Pharmacodynamics
Risedronate is a pyridine-based bisphosphonate that inhibits bone resorption caused by osteoclasts Label.
Absorption
Oral bioavailability is 0.63% and maximum absorption is approximately 1 hour after dosing Label.
Administration half and hour before a meal reduces bioavailability by 55% compared to fasting and dosing 1 hour before a meal reduces bioavailability by 30% Label.
Metabolism
Risedronic acid is not likely not metabolized before elimination Label.
P-C-P group of bisphosphonates is resistant to chemical and enzymatic hydrolysis preventing metabolism of the molecule 1.
Route of Elimination
Risedronate is excreted by the kidneys and the unabsorbed dose is eliminated in the feces Label.
Half-life
The initial half life of risedronic acid is approximately 1.5 hours 3, with a terminal half life of 561 hours Label.
Clearance
Mean renal clearance was 52 mL/min and mean total clearance was 73 mL/min Label.
Adverse Effects
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Toxicity
In clinical trials, over 10% of patients experienced back pain, arthralgia, abdominal pain, and dyspepsia Label.
Less commonly, patients experience angioedema, generalized rash, bullous skin reactions, iritis, and uveitis Label.
Patients experiencing an overdose may experience a decrease in serum calcium and phosphorus Label.
Patients can be given milk or antacids to bind the drug and reduce its absorption Label.
In more severe cases, patients may require gastric lavage and intravenous calcium Label.
A lethal dose in rats is equivalent to 320-620 times the human dose based on surface area Label.
Warnings
For external use only.
Do not use more than one acne product at a time.
Dosage & Administration
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