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Alendronic acid or Alendronate, sold under the brand name Fosamax among others, is a bisphosphonate medication used to treat osteoporosis and Paget's disease of bone, which works by decreasing the activity of osteoclasts, the cells that break down bone. It is taken by mouth as the neutral sodium salt, alendronate sodium, but is absorbed as the active free drug alendronic acid. Use is often recommended together with vitamin D, calcium supplementation, and lifestyle changes.
Read the full article on WikipediaCorticosteroid-induced osteoporosis Clinical criteria: The condition must be stable for the prescriber to consider the listed maximum quantity of this medicine suitable for this patient, AND Patient must currently be on long-term (at least 3 months), high-dose (at least 7.5 mg per day prednisolone or equivalent) corticosteroid therapy, AND Patient must have a Bone Mineral Density (BMD) T-score of -1.5 or less, AND Patient must not receive concomitant treatment with any other PBS-subsidised anti-resorptive agent for this condition. The duration and dose of corticosteroid therapy together with the date, site (femoral neck or lumbar spine) and score of the qualifying BMD measurement must be documented in the patient's medical records when treatment is initiated.
Osteoporosis Clinical criteria: The condition must be stable for the prescriber to consider the listed maximum quantity of this medicine suitable for this patient. Population criteria: Patient must be aged 70 years or older. Patient must have a Bone Mineral Density (BMD) T-score of -2.5 or less, AND Patient must not receive concomitant treatment with any other PBS-subsidised anti-resorptive agent for this condition. The date, site (femoral neck or lumbar spine) and score of the qualifying BMD measurement must be documented in the patient's medical records when treatment is initiated.
Established osteoporosis Clinical criteria: The condition must be stable for the prescriber to consider the listed maximum quantity of this medicine suitable for this patient, AND Patient must have fracture due to minimal trauma, AND Patient must not receive concomitant treatment with any other PBS-subsidised anti-resorptive agent for this condition. The fracture must have been demonstrated radiologically and the year of plain x-ray or computed tomography (CT) scan or magnetic resonance imaging (MRI) scan must be documented in the patient's medical records when treatment is initiated. A vertebral fracture is defined as a 20% or greater reduction in height of the anterior or mid portion of a vertebral body relative to the posterior height of that body, or, a 20% or greater reduction in any of these heights compared to the vertebral body above or below the affected vertebral body.
“Nitrogen containing bisphosphonates, which include ibandronate, pamidronate and alendronate exert their effects on osteoclasts mainly by inhibiting the synthesis of isoprenoid lipids such as isopentenyl diphosphate (IPP), farnesyl diphosphate (FPP), and geranylgeranyl diphosphate (GGPP) via the mevalonate pathway. These isoprenoids are used in posttranslational modification(prenylation) of small GTPases such as Ras, Rho, and Rac. These prenylated GTPases are necessary for various cellular processes including osteoclast morphology, endosome trafficking, and apoptosis. Alendronate has also been shown to impair the function of osteclast lysosomes.”
“126 months”
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