Ibandronate Sodium (ibandronate sodium)

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Last reviewed · Source: First Databank (FDB) drug data

Overview

Ibandronate sodium, a synthetic bisphosphonate analog of pyrophosphate, is a bone resorption inhibitor.

Ibandronate sodium, a synthetic bisphosphonate analog of pyrophosphate, is an inhibitor of osteoclast-mediated bone resorption. Ibandronate decreases bone resorption and turnover in a dose-dependent manner, resulting in maintenance of or increases in bone mineral density (BMD) and a net increase in bone mass compared with placebo in postmenopausal women. Ibandronate is structurally and pharmacologically related to other bisphosphonates (e.g., alendronate, etidronate, pamidronate, risedronate, zoledronic acid).

About 50-60% of an absorbed oral or IV dose of ibandronate sodium is eliminated in urine as unchanged drug. Nonrenal clearance is believed to result from uptake of the drug by bone. Unabsorbed drug is excreted unchanged in feces.

Ibandronate is not metabolized and does not inhibit cytochrome P-450 (CYP) enzymes 1A2, 2A6, 2C9, 2C19, 2D6, 2E1, or 3A4 in vitro.

USES: Ibandronate is used to prevent and treat certain types of bone loss (osteoporosis). Osteoporosis causes bones to become thinner and break more easily. Your chance of developing osteoporosis increases after menopause, as you age, or if you take corticosteroid medications (such as prednisone) for long periods.

This medication works by slowing bone loss to help maintain strong bones and reduce the risk of broken bones (fractures). Ibandronate belongs to a class of medications called bisphosphonates.

Generic name: ibandronate sodium
Pronunciation: (eye-BAN-droe-nate)

Reference product & biosimilars

No reference, biosimilar or interchangeable associated with this drug.

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Indications

The following indications are listed for Ibandronate Sodium:

  • Post-Menopausal Osteoporosis Prevention
  • Postmenopausal Osteoporosis

Also known as: Post-Menopausal Osteoporosis, Postmenopausal Osteoporosis Prophylaxis.

Dosing

Dosage of ibandronate sodium, which is commercially available as the monosodium monohydrate, is expressed in terms of ibandronate.

The optimal duration of bisphosphonate therapy for osteoporosis has not been established. Safety and efficacy of ibandronate for the management of osteoporosis are based on clinical data over 3 years (for the oral formulation) or 1 year (for the IV formulation). Some evidence suggests that increased durations of bisphosphonate use may be associated with a higher risk of some adverse effects (e.g., jaw osteonecrosis, atypical fractures). (See Cautions.) All patients receiving a bisphosphonate should have periodic evaluations to determine the need for continued therapy with the drug. Discontinuance of bisphosphonate therapy may be considered after 3-5 years of use for patients who are assessed to be at low risk of fracture. Risk of fracture should be evaluated periodically in patients who discontinue therapy.

Drug interactions

There is no enhanced messaging for this drug.

Contraindications

Hypocalcemia or known hypersensitivity to ibandronate or any ingredient in the formulation.

With oral ibandronate, abnormalities of the esophagus that delay esophageal emptying, such as stricture or achalasia.

With oral ibandronate, inability to stand or sit upright for at least 60 minutes.

Adverse reactions

Adverse effects occurring in at least 2% of patients receiving daily oral ibandronate therapy in osteoporosis treatment or prevention studies and in more patients than with placebo include upper respiratory tract infection, back pain, dyspepsia, bronchitis, pain in the extremities, diarrhea, headache, pneumonia, myalgia, urinary tract infection, hypercholesterolemia, infection (unspecified), dizziness, joint disorder, asthenia, tooth disorder, arthritis, vertigo, vomiting, allergic reaction, pharyngitis, gastritis, and nerve root lesion.

Adverse effects occurring in at least 2% of patients receiving once-monthly oral ibandronate include upper abdominal or abdominal pain, hypertension, dyspepsia, arthralgia, nausea, diarrhea, back pain, constipation, influenza, pain in the extremities, nasopharyngitis, headache, influenza-like illness and acute phase inflammatory reaction, localized osteoarthritis, bronchitis, urinary tract infection, dizziness, rash (including pruritic, macular, papular, erythematous, or generalized rash; dermatitis or allergic dermatitis; exanthem; erythema; and dermatitis medicamentosa), myalgia, upper respiratory tract infection, and insomnia.

Adverse effects occurring in at least 2% of patients receiving quarterly IV ibandronate therapy for the treatment of osteoporosis include arthralgia, back pain, cystitis, gastroenteritis, upper abdominal or abdominal pain, influenza-like illness and acute phase inflammatory reaction, headache, dyspepsia, nasopharyngitis, constipation, fatigue, diarrhea, pain in the extremities, myalgia, urinary tract infection, osteoarthritis, rash (including pruritic, macular, papular, erythematous, or generalized rash, dermatitis or allergic dermatitis, exanthem, erythema, and dermatitis medicamentosa), bronchitis, and nausea.

Precautions

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ICD codes

No ICD codes are available for this drug.

Formulary status

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Last reviewed · Source: First Databank (FDB) drug data