Calcitonin
/api/v1/drug/calcitoninMechanism of action
Sourced from openFDACalcitonin salmon is a calcitonin receptor agonist. Calcitonin salmon acts primarily on bone, but direct renal effects and actions on the gastrointestinal tract are also recognized.
Indications
Sourced from openFDA- Calcitonin salmon injection, synthetic is a calcitonin, indicated for the following conditions: Treatment of symptomatic Paget's disease of bone when alternative treatments are not suitable ( 1.1 ) Treatment of hypercalcemia ( 1.2 ) Treatment of postmenopausal osteoporosis when alternative treatments are not suitable. Fracture reduction efficacy has not been demonstrated ( 1.3 ) Limitations of Use: Due to the possible association between malignancy and calcitonin salmon use, the need for continued therapy should be re-evaluated on a periodic basis ( 1.4 , 5.3 ) 1.1 Treatment of Paget’s Disease of Bone Calcitonin salmon injection is indicated for the treatment of symptomatic Paget's disease of bone in patients with moderate to severe disease characterized by polyostotic involvement with elevated serum alkaline phosphatase and urinary hydroxyproline excretion.ICD-10: E83.52, M81.0
Contraindications
Sourced from openFDA- Hypersensitivity to calcitonin salmon or any of the excipients. Reactions have included anaphylaxis with death, bronchospasm, and swelling of the tongue or throat [see Warnings and Precautions ( 5.1 )].contraindicated
Dosage & administration
Sourced from openFDASymptomatic Paget's disease of bone: 100 USP Units daily. Ensure adequate calcium and vitamin D intake ( 2.1 , 2.5 ) Hypercalcemia: start with 4 USP Units/kg body weight every 12 hours. Increase to 8 USP Units/kg every 12 hours if no improvement in 1-2 days. Increase further to 8 USP Units/kg every 6 hours if no improvement after 2 more days ( 2.2 ) Postmenopausal osteoporosis: 100 USP Units daily. Ensure adequate calcium and vitamin D intake ( 2.3 , 2.5 ) 2.1 Paget’s Disease of Bone The recommended dose of Calcitonin salmon injection for treatment of symptomatic Paget's disease of bone is 100 USP Units (0.5 mL) per day administered subcutaneously or intramuscularly. 2.2 Hypercalcemia The recommended starting dose of Calcitonin salmon injection for early treatment of hypercalcemia is 4 USP Units/kg body weight every 12 hours by subcutaneous or intramuscular injection. If the response to this dose is not satisfactory after one or two days, the dose may be increased to 8 USP Units/kg every 12 hours. If the response remains unsatisfactory after two more days, the dose may be further increased to a maximum of 8 USP Units/kg every 6 hours. 2.3 Postmenopausal Osteoporosis The recommended dose of Calcitonin salmon injection for treatment of postmenopausal osteoporosis in women greater than 5 years postmenopause is 100 USP Units (0.5 mL) per day administered subcutaneously or intramuscularly. The minimum effective dose of Calcitonin salmon injection for the prevention of vertebral bone mineral density loss has not been established.
Warnings & precautions
Sourced from openFDASerious hypersensitivity reactions, including reports of fatal anaphylaxis have been reported. Consider skin testing prior to treatment in patients with suspected hypersensitivity to calcitonin salmon ( 5.1 ) Hypocalcemia has been reported. Ensure adequate intake of calcium and vitamin D ( 5.2 ) Malignancy: A meta-analysis of 21 clinical trials suggests an increased risk of overall malignancies in calcitonin salmon-treated patients ( 5.3 , 6.1 ) Circulating antibodies to calcitonin salmon may develop, and may cause loss of response to treatment ( 5.4 ) 5.1 Hypersensitivity Reactions Serious hypersensitivity reactions have been reported in patients receiving calcitonin salmon injection, e.g., bronchospasm, swelling of the tongue or throat, anaphylactic shock, and death due to anaphylaxis. Appropriate medical support and monitoring measures should be readily available when calcitonin salmon injection is administered. If anaphylaxis or other severe hypersensitivity/allergic reactions occur, initiate appropriate treatment [see Contraindications ( 4 )]. For patients with suspected hypersensitivity to calcitonin salmon, skin testing should be considered prior to treatment utilizing a dilute, sterile solution of calcitonin salmon injection. Healthcare providers may wish to refer patients who require skin testing to an allergist. 5.2 Hypocalcemia Hypocalcemia associated with tetany (i.e., muscle cramps, twitching) and seizure activity has been reported with calcitonin salmon injection therapy. Hypocalcemia must be corrected before initiating therapy.
Adverse reactions
Sourced from openFDAThe following serious adverse reactions are discussed in greater detail in other sections of the label: Hypersensitivity Reactions, including anaphylaxis [see Warnings and Precautions ( 5.1 )] Hypocalcemia [see Warnings and Precautions ( 5.2 )] Malignancy [see Warnings and Precautions ( 5.3 )] Most common adverse reactions are nausea with or without vomiting (10%), injection site inflammation (10%), and flushing of the face or hands (2% to 5%) ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Zydus Pharmaceuticals (USA) Inc. at 1-877-993-8779 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of calcitonin salmon injection was assessed in open-label trials several months to two years in duration. The most common adverse reactions are discussed below. Nausea Nausea with or without vomiting has been noted in about 10% of patients treated with calcitonin salmon. It is most evident when treatment is first initiated and tends to decrease or disappear with continued administration. Dermatologic Reactions Local inflammatory reactions at the site of subcutaneous or intramuscular injection have been reported in about 10% of patients. Flushing of face or hands occurred in about 2% to 5% of patients. Skin rashes and pruritus of the ear lobes have also been reported.
Use in specific populations
Sourced from openFDAThere are no data to support use in children ( 8.4 ) 8.1 Pregnancy Risk Summary There are no studies with calcitonin salmon injection in pregnant women to inform a drug associated risk for birth defects or miscarriage. In an animal reproduction study, subcutaneous administration of calcitonin salmon to pregnant rabbits during organogenesis at 4-18 times the recommended parenteral human dose caused a decrease in fetal birth weights. No adverse developmental outcome was observed in the rat with subcutaneous administration of calcitonin salmon at 9 times the recommended human parenteral dose based on body surface area (see Data). In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. Data Animal Data Calcitonin salmon has been shown to cause a decrease in fetal birth weights in rabbits when given by subcutaneous injection in doses 4 to 18 times the parenteral dose recommended for human use (of 54 International Units/m 2 ). No embryo/fetal toxicities related to calcitonin salmon were reported from maternal subcutaneous daily doses in rats up to 80 International Units/kg/day from gestation day 6 to 15.
Pharmacokinetics
Sourced from openFDA- Metabolism
- The absolute bioavailability of calcitonin salmon is approximately 66% and 71% after intramuscular or subcutaneous injection, respectively. After subcutaneous administration, peak plasma levels are reached in approximately 23 minutes.
Overdosage
Sourced from openFDAThe pharmacologic actions of calcitonin salmon injection suggest that hypocalcemic tetany could occur in overdose. Therefore, provisions for parenteral administration of calcium should be available for the treatment of overdose. A dose of calcitonin salmon l000 International Units subcutaneously may produce nausea and vomiting. Doses of 32 International Units per kg per day for 1 to 2 days demonstrate no other adverse effects. Data on chronic high-dose administration are insufficient to assess toxicity.
Approval history
Sourced from openFDA- Jul 3, 1986NDANDA017808Mylan Ireland Ltd
- Nov 17, 2008ANDAANDA076396Apotex Inc
- Jun 8, 2009ANDAANDA076979Ph Health
- May 14, 2021ANDAANDA212416Custopharm Inc
- Nov 10, 2021ANDAANDA209358Ph Health
- Apr 11, 2024ANDAANDA215715Dr Reddys
- Sep 20, 2024ANDAANDA213766Cipla
- Dec 5, 2024ANDAANDA212675Fresenius Kabi Usa
FAERS reports
- 1Nausea2528.2%
- 2Drug Ineffective2488.0%
- 3Fall2187.1%
- 4Pain2116.8%
- 5Arthralgia1876.1%
- 6Dizziness1805.8%
- 7Headache1755.7%
- 8Back Pain1735.6%
- 9Dyspnoea1625.2%
- 10Asthenia1565.1%
- 11Fatigue1535.0%
- 12Diarrhoea1454.7%
- 13Pain In Extremity1454.7%
- 14Vomiting1374.4%
- 15Pneumonia1063.4%
Literature
Recent PubMed references pinned to Calcitonin as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.
- Combined Predictive Value of Serum NGAL, CysC, Urinary NAG, and eGFR for Sepsis-Associated Acute Kidney Injury in Patients in ICU.Saudi medical journal · 2026 · Han Y, Ning W, Lu J, et al.PMID 42239558DOI 10.15537/1658-3175.8772
- Diagnostic accuracy of PCT, IL-6, and MR-ProADM for early identification of sepsis in the emergency department.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2026 · Tejada S, Clemente A, Socias A, et al.PMID 42213063DOI 10.37201/req/145.2026
- Diagnostic Value of the Combination of Serum TH1/TH2 Cytokines, Procalcitonin, and High-sensitivity C-reactive Protein for Predicting the Severity of Pneumonia.Iranian journal of allergy, asthma, and immunology · 2026 · Zeng H, Huang X, Zeng G, et al.PMID 42130141DOI 10.18502/ijaai.v25i3.21257
- KInetics of Procalcitonin to Reduce Unnecessary aNtibiotic use (KIPRUN): protocol for a multicentre, randomised, superiority trial to compare the efficacy and safety of procalcitonin kinetics-guided and absolute procalcitonin value-guided antibiotic initiation in critically ill patients.BMJ open · 2026 · Papp M, Turan C, Kiss N, et al.PMID 42128499DOI 10.1136/bmjopen-2025-115344
- Sensitive and selective quantification of elcatonin in equine plasma and urine using LC-FAIMS-MS/MS.Journal of pharmaceutical and biomedical analysis · 2026 · Ohnuma K, Fukazawa M, Uchida T, et al.PMID 42127554DOI 10.1016/j.jpba.2026.117551
- Procalcitonin kinetics in Gram-negative bloodstream infections and its value for infection management.Journal of medical microbiology · 2026 · Ali S, Mullane N, Rees N, et al.PMID 42113673DOI 10.1099/jmm.0.002168
- The Role and Importance of Procalcitonin (PCT) Testing in Rational Antibiotic Prescribing and Antibiotic Stewardship Programs.Immunity, inflammation and disease · 2026 · Abdollahi A, Nozheh A, Mozahheb Yousefi K, et al.PMID 42036811DOI 10.1002/iid3.70398
- Relationship between changes in BNP, PCT, and SIGIRR levels in peripheral blood and prognosis of sepsis patients caused by abdominal infection and construction of a nomogram.Medicine · 2026 · Li S, Cui Y, Yuan J, et al.PMID 41995565DOI 10.1097/MD.0000000000048227
Clinical trials
The 10 most recently updated of 145 ClinicalTrials.gov registrations naming Calcitonin as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.
- Eptinezumab for Chronic Headache in Idiopathic Intracranial HypertensionNot yet recruiting · Phase 3 · Interventional · 96 enrolled · Rigmor Højland JensenNCT07645833updated 2026-06-12
- i-NEED: NEw migrainE Drugs DatabaseRecruiting · Observational · 2,641 enrolled · IRCCS San Raffaele RomaNCT07103694updated 2026-06-11
- Mulligan Mobilization and Stabilization Exercises for Sensorimotor Function in Women With Text Neck SyndromeCompleted · Interventional · 38 enrolled · Pamukkale UniversityNCT07613879updated 2026-05-29
- STAGE-MTC Trial Thyroid Lobectomy With Ipsilateral Central Neck DissectionNot yet recruiting · Interventional · 100 enrolled · Jonsson Comprehensive Cancer CenterNCT07612293updated 2026-05-28
- Using Virtual Reality to Teach Mindfulness to People With MigraineNot yet recruiting · Interventional · 160 enrolled · Brigham and Women's HospitalNCT07599228updated 2026-05-20
- Paravertebral Calcitonin in ThoracotomyCompleted · Interventional · 92 enrolled · Tanta UniversityNCT06330168updated 2026-05-19
- Calcitonin Therapy on Incidence and Severity of Neuropathic Pain After Spinal Cord InjuryRecruiting · Interventional · 126 enrolled · Tanta UniversityNCT05805683updated 2026-05-14
- A Study to Compare Blood Levels of Different Dosage Formulations of the Study Medicine That Is a CGRP Receptor Antagonist in Healthy AdultsCompleted · Phase 1 · Interventional · 64 enrolled · PfizerNCT07261371updated 2026-05-04
- 177Lu-PP-F11N for Receptor Targeted Therapy and Imaging of Metastatic Thyroid Cancer.Active not recruiting · Phase 1 · Interventional · 24 enrolled · University Hospital, Basel, SwitzerlandNCT02088645updated 2026-05-01
- Plasma Calcitonin Gene-Related Peptide (CGRP) Levels in Patients With Head and Neck Malignancies Undergoing RadiotherapyCompleted · Observational · 23 enrolled · West China HospitalNCT07029373updated 2026-04-21
Frequently asked questions
- How does Calcitonin work?
- Calcitonin salmon is a calcitonin receptor agonist. Calcitonin salmon acts primarily on bone, but direct renal effects and actions on the gastrointestinal tract are also recognized.
- What is Calcitonin used for?
- According to FDA labeling, Calcitonin carries indications including: Calcitonin salmon injection, synthetic is a calcitonin, indicated for the following conditions: Treatment of symptomatic Paget's disease of bone when alternative treatments are not suitable ( 1.1 ) Treatment of hypercalcemia ( 1.2 ) Treatment of postmenopausal osteoporosis when alternative treatments are not suitable. Fracture reduction efficacy has not been demonstrated ( 1.3 ) Limitations of Use: Due to the possible association between malignancy and calcitonin salmon use, the need for continued therapy should be re-evaluated on a periodic basis ( 1.4 , 5.3 ) 1.1 Treatment of Paget’s Disease of Bone Calcitonin salmon injection is indicated for the treatment of symptomatic Paget's disease of bone in patients with moderate to severe disease characterized by polyostotic involvement with elevated serum alkaline phosphatase and urinary hydroxyproline excretion.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
- What class of drug is Calcitonin?
- Calcitonin is classified as Structural Macromolecules, Bone Resorption Inhibition, Increased Distal Tubule Ca++ Excretion, Increased Distal Tubule K+ Excretion, Increased Distal Tubule Mg++ Excretion, Increased Distal Tubule Na+ Excretion, Increased Distal Tubule PO4-- Excretion, Stimulation Small Intestine Fluid/Electrolyte Secretion.
- What are the contraindications for Calcitonin?
- Calcitonin labeling lists contraindications including: Hypersensitivity to calcitonin salmon or any of the excipients. Reactions have included anaphylaxis with death, bronchospasm, and swelling of the tongue or throat [see Warnings and Precautions ( 5.1 )].. Always consult the full prescribing information and a clinician.
calcitonin is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.