Thông tin thuốc gốc
Chỉ định và Liều dùng
Corticosteroid-induced osteoporosis, Hypogonadal osteoporosis in men, Osteoporosis in postmenopausal women, Primary osteoporosis in men
Adult: In patients at high risk of fracture, or who have failed or are intolerant to other available osteoporosis therapies: 20 mcg once daily to be injected into the thigh or abdominal wall. Max duration of treatment: 24 months (a treatment course must not to be repeated over a patient's lifetime).
Suy thận
Severe: Contraindicated.
Chống chỉ định
Hypersensitivity. Pre-existing hypercalcaemia, skeletal malignancies or bone metastases, other metabolic bone diseases (e.g. Paget's disease, hyperparathyroidism), unexplained elevations of alkaline phosphatase, previous implant or external beam radiation therapy to the skeleton, hereditary disorders predisposing to osteosarcoma. Young adults with open epiphyses. Severe renal impairment. Pregnancy.
Thận trọng
Patient with active or recent urolithiasis or underlying autoimmune disease. Young adults (including premenopausal women). Hepatic and moderate renal impairment. Lactation. Patient must be supplemented with Ca and vitamin D if dietary intake is inadequate. Concomitant use with warfarin, systemic corticosteroid, or digoxin.
Tác dụng không mong muốn
Significant: Serious calciphylaxis and worsening of previous stable cutaneous calcification; transient orthostatic hypotension, transient and minimal elevations of serum Ca or hypercalcaemia. Rarely, osteosarcoma.
Blood and lymphatic system disorders: Anaemia.
Cardiac disorders: Palpitations, tachycardia.
Ear and labyrinth disorders: Vertigo.
Gastrointestinal disorders: Nausea, vomiting, hiatus hernia, GERD, haemorrhoids, dyspepsia.
General disorders and administration site conditions: Fatigue, asthenia, chest pain, mild and transient inj site events (e.g. pain, swelling, erythema, localised bruising, pruritis, minor bleeding).
Immune system disorders: Hypersensitivity reactions (e.g. angioedema, anaphylaxis).
Investigations: Weight increased, alkaline phosphatase increased, cardiac murmur.
Metabolism and nutrition disorders: Hypercholesterolaemia, hyperuricaemia.
Musculoskeletal and connective tissue disorders: Pain in limb, muscle cramps, arthralgia, myalgia, back cramp or pain.
Nervous system disorders: Dizziness, headache, sciatica.
Psychiatric disorders: Depression, insomnia.
Renal and urinary disorders: Polyuria, urinary incontinence, nephrolithiasis, micturition urgency.
Respiratory, thoracic and mediastinal disorders: Dyspnoea, emphysema, pharyngitis, pneumonia, rhinitis.
Skin and subcutaneous tissue disorders: Increased sweating.
Vascular disorders: Syncope.
Chỉ số theo dõi
Screen for elevated alkaline phosphatase or Paget's disease prior to initiation. Monitor serum Ca (draw sample at least 16 hours post-dose), urinary Ca (in patients with suspected active urolithiasis or pre-existing hypercalciuria); signs and symptoms of orthostatic hypotension; weight and height annually. Evaluate BMD at baseline and approx 1-2 years after initiation of therapy. Consider monitoring of bone turnover biochemical markers (e.g. serum procollagen type 1 N-terminal propeptide [P1NP]) at baseline, 3 months, and 6 months to assess response to treatment. Monitor for chronic back pain.
Quá liều
Symptoms: Nausea, vomiting, dizziness, headache, weakness, and hypotension. Management: Supportive treatment (e.g. hydration). Monitor serum Ca and phosphorus levels.
Tương tác
Concomitant use with digoxin may increase the risk of digitalis toxicity due to the effect of teriparatide on serum Ca levels.
Tác dụng
Description: Teriparatide is a recombinant peptide identical to the N-terminal 34-amino acid sequence of endogenous PTH. It binds to the PTH receptor with the same affinity as the intact endogenous hormone and exerts similar physiologic effects as PTH, including stimulation of bone formation by direct effects on bone forming cells (osteoblasts) and increasing gastrointestinal Ca absorption, renal tubular Ca reabsorption and phosphate excretion in the kidney. Anabolic effects of teriparatide demonstrate as increase in bone strength, skeletal mass, and bone formation and resorption markers.
Absorption: Rapidly and extensively absorbed. Absolute bioavailability: Approx 95%. Time to peak plasma concentration: Approx 30 minutes.
Distribution: Volume of distribution: Approx 0.12 L/kg.
Metabolism: Intact PTH and the N-terminal 34-amino acid sequence of PTH are suspected to undergo nonspecific proteolysis in the liver.
Excretion: Via urine (as metabolites). Elimination half-life: Approx 1 hour.
Đặc tính

Chemical Structure Image

Source: National Center for Biotechnology Information. PubChem Compound Summary for CID 16133850, Forteo. https://pubchem.ncbi.nlm.nih.gov/compound/Forteo. Accessed Aug. 26, 2021.

Bảo quản
Store between 2-8°C. Do not freeze. Protect from light. Once opened, store between 2-8°C for a max of 28 days.
Phân loại MIMS
Thuốc ảnh hưởng chuyển hóa xương
Phân loại ATC
H05AA02 - teriparatide ; Belongs to the class of parathyroid hormones and analogues. Used in the management of calcium homeostasis.
Tài liệu tham khảo
Anon. Teriparatide. AHFS Clinical Drug Information [online]. Bethesda, MD. American Society of Health-System Pharmacists, Inc. https://www.ahfscdi.com. Accessed 30/07/2021.

Anon. Teriparatide. Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 08/07/2021.

Buckingham R (ed). Teriparatide. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 08/07/2021.

Forsteo 20 mcg/80 microliters Solution for Injection in Pre-Filled Pen (Eli Lilly Nederland B.V.). MHRA. https://products.mhra.gov.uk. Accessed 08/07/2021.

Forteo 20 mcg/80 microliters Solution for Injection in Pre-Filled Pen (Zuellig Pharma Sdn Bhd). National Pharmaceutical Regulatory Agency - Ministry of Health Malaysia. https://www.npra.gov.my. Accessed 30/07/2021.

Forteo Injection, Solution (Eli Lilly and Company). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed. Accessed 08/07/2021.

Joint Formulary Committee. Teriparatide. British National Formulary [online]. London. BMJ Group and Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 08/07/2021.

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