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This page presents data from the FDA Adverse Event Reporting System (FAERS) and the FDA-approved drug label. A report submitted to FAERS does not prove a drug caused the reported event. Always consult a healthcare provider about medications.

Stoboclo (denosumab)

rank ligand inhibitor
Last updated: June 18, 2026
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Stoboclo is the brand name for denosumab, a rank ligand inhibitor. According to the FDA-approved label, Stoboclo is a RANK ligand (RANKL) inhibitor indicated for treatment: of postmenopausal women with osteoporosis at high risk for fracture ( 1.1 ) to increase bone mass in men with osteoporosis at high risk for fracture. FAERS contains 198,108 submissions naming this drug from 2008 through 2026; the top three reactions cited are off label use, death, and arthralgia.

Most-Reported Reactions

Counts of the reactions most often cited in FAERS submissions that named Stoboclo. Inclusion here does not establish causation - submitters describe what was observed, not what was confirmed. One submission can list several reactions, so the totals exceed the report count.

OFF LABEL USE 36,585 (18.5%) DEATH 20,086 (10.1%) ARTHRALGIA 8,763 (4.4%) OSTEONECROSIS OF JAW 8,521 (4.3%) FATIGUE 7,589 (3.8%) PAIN IN EXTREMITY 6,950 (3.5%) PAIN 6,838 (3.5%) BACK PAIN 6,822 (3.4%) NAUSEA 5,374 (2.7%) DIARRHOEA 5,215 (2.6%) FALL 5,037 (2.5%) RASH 4,268 (2.2%) MYALGIA 4,202 (2.1%) BONE PAIN 4,010 (2.0%) ASTHENIA 4,008 (2.0%)

Patient Demographics

Patient sex and age across the FAERS submissions that named Stoboclo. Percentages here are computed only from submissions where these fields were filled in - many leave them blank.

By Sex

Female Male Unknown

By Age Group

0-17 18-44 45-64 65+

Severity Outcomes

Severity flags recorded across the 198,108 FAERS submissions that named Stoboclo. Each bar shows the count of those reports carrying that flag. A single case can carry more than one (a hospitalization that became life-threatening, for example), so these bars are independent rates - they don't sum to 100%. Inclusion of a case under any flag does not establish that the drug caused the outcome.

DEATH 25,330 (12.8%) HOSPITALIZATION 30,635 (15.5%) LIFE-THREATENING 2,404 (1.2%) DISABLING 3,190 (1.6%)

Submissions Per Quarter

Quarterly count of FAERS submissions that named Stoboclo. Ups and downs on this chart can track prescribing volume, news cycles, or shifts in how reports get filed, rather than the drug becoming safer or more dangerous.

2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

From the FDA-Approved Label

Excerpts from the official FDA-approved prescribing information for Stoboclo. This is the authoritative source on indications, warnings, and known adverse reactions.

Indications

1 INDICATIONS AND USAGE Stoboclo is a RANK ligand (RANKL) inhibitor indicated for treatment: of postmenopausal women with osteoporosis at high risk for fracture ( 1.1 ) to increase bone mass in men with osteoporosis at high risk for fracture ( 1.2 ) of glucocorticoid-induced osteoporosis in men and women at high risk for fracture ( 1.3 ) to increase bone mass in men at high risk for fracture receiving androgen deprivation therapy for nonmetastatic prostate cancer ( 1.4 ) to increase bone mass in women at high risk for fracture receiving adjuvant aromatase inhibitor therapy for breast cancer ( 1.5 ) 1.1 Treatment of Postmenopausal Women with Osteoporosis at High Risk for Fracture Stoboclo is indicated for the treatment of postmenopausal women with osteoporosis at high risk for fracture, defined as a history of osteoporotic fracture, or multiple risk factors for fracture; or patients who have failed or are intolerant to other available osteoporosis therapy. In postmenopausal women with osteoporosis, denosumab reduces the incidence of vertebral, nonvertebral, and hip fractures [see Clinical Studies (14.1) ] . 1. (continues in label)

Adverse Reactions (from label)

6 ADVERSE REACTIONS The following serious adverse reactions are discussed below and also elsewhere in the labeling: Severe Hypocalcemia and Mineral Metabolism Changes [see Warnings and Precautions (5.1) ] Hypersensitivity [see Warnings and Precautions (5.3) ] Osteonecrosis of the Jaw [see Warnings and Precautions (5.4) ] Atypical Subtrochanteric and Diaphyseal Femoral Fractures [see Warnings and Precautions (5.5) ] Multiple Vertebral Fractures (MVF) Following Treatment Discontinuation [see Warnings and Precautions (5.6) ] Serious Infections [see Warnings and Precautions (5.7) ] Dermatologic Adverse Reactions [see Warnings and Precautions (5.8) ] The most common adverse reactions reported with denosumab products in patients with postmenopausal osteoporosis are back pain, pain in extremity, musculoskeletal pain, hypercholesterolemia, and cystitis. The most common adverse reactions reported with denosumab products in men with osteoporosis are back pain, arthralgia, and nasopharyngitis. The most common adverse reactions reported with denosumab products in patients with glucocorticoid-induced osteoporosis are back pain, hypertension, bronchitis, and headache. (continues in label)

FDA label effective date: 2026-02-05

Disclaimer

AdverseEvent.ai is not affiliated with the FDA. Adverse-event counts come from the FDA Adverse Event Reporting System (FAERS). Drug labels come from the FDA drug label dataset. A report submitted to FAERS does not prove a drug caused the reported event — always consult a healthcare provider about medications. This site is for informational purposes only and is not medical advice.