FDA APPROVED
Extensively Studied
Healing
Teriparatide
29
Amino acids
Molecular weight
Peptide
Type
Teriparatide is an FDA-approved anabolic bone-building agent consisting of the first 34 amino acids of parathyroid hormone. Unlike antiresorptive osteoporosis drugs that slow bone loss, teriparatide actively stimulates new bone formation. The key to its mechanism is intermittent exposure: while continuous PTH causes bone resorption, daily injections stimulate osteoblasts more than osteoclasts, resulting in net bone formation. Clinical trials show 8% spine bone density increases and 65% reduction in vertebral fractures.
Teriparatide binds to PTH type 1 receptors (G-protein coupled receptors) on osteoblasts, osteocytes, and renal tubular cells. This activates PKA and PKC signaling pathways that promote osteoblast activity. The intermittent daily dosing creates an 'anabolic window' where bone formation exceeds resorption. Teriparatide upregulates IGF-1 and FGF2 expression, stimulates bone formation on trabecular and cortical surfaces, and increases bone mineral density through preferential osteoblast stimulation.
Pen: 2-8°C refrigerated, do not freeze. Discard after 28 days
Once daily at same time each day
20mcg daily (FDA-approved dose)
Maximum 2 years lifetime treatment
FDA-approved for osteoporosis treatment
Actively builds new bone (anabolic)
Increases spine bone density by 5-9%
Reduces vertebral fracture risk by 65%
Reduces nonvertebral fractures by 35%
Works differently than antiresorptive drugs
Benefits seen within 3 months
Creates 'anabolic window' for bone growth
This peptide is still gaining traction in the community.
PTH(1-34) | Bone-Building Anabolic Peptide
This overview is informational and based on aggregated descriptions from studies and user reports.
Was it helpful?YesView the scientifc details of Teriparatide.
29
Amino Acids
Teriparatide
Asn
Asn
Position 1
Thr
Thr
Position 2
Glu
Glu
Position 3
Arg
Arg
Position 4
Met
Met
Position 5
Ile
Ile
Position 6
Asn
Asn
Position 7
Ala
Ala
Position 8
Leu
Leu
Position 9
Pyl
Pyl
Position 10
Phe
Phe
Position 11
Pro
Pro
Position 12
Ala
Ala
Position 13
Arg
Arg
Position 14
Ala
Ala
Position 15
Thr
Thr
Position 16
His
His
Position 17
Tyr
Tyr
Position 18
Arg
Arg
Position 19
Pyl
Pyl
Position 20
Ile
Ile
Position 21
Asp
Asp
Position 22
His
His
Position 23
Pyl
Pyl
Position 24
Arg
Arg
Position 25
Met
Met
Position 26
Pyl
Pyl
Position 27
Asn
Asn
Position 28
Glu
Glu
Position 29
Teriparatide is administered as a once-daily subcutaneous injection, typically in the thigh or abdomen. It comes in pre-filled pen devices (Forteo) containing a 28-day supply. Treatment is typically limited to 2 years due to theoretical bone cancer risk from long-term use (seen only in rats at high doses).
| Goal | Dosage | Frequency | Route |
|---|---|---|---|
| Osteoporosis treatment | 20 | 1 week range | SubQ (thigh or abdomen) |
Materials needed:
Steps to reconstitute
The Teriparatide Cycle section explains how long a typical cycle lasts and what to expect during each phase. Over time, your body can become less responsive with continuous use.
Taking breaks between cycles may help maintain effectiveness and support better overall results.
Dosing tools
Calculate peptide doses with our visual syringe guide.
0.3mL / 30 units
5 units
0.050 mL
1 mL
2 mL
3 mL
5 mL
Custom
Conversion: 1,000 mcg = 1 mg
Based on your vial and dilution inputs.
Teriparatide
SINGLE COMPOUNDVolume per injection
0.05
mL
Concentration
10.00
mg/mL
Doses per vial
20
doses
Total injections per vial
20 injections
How it works
Based on a 10 mg Teriparatide vial diluted with 1 mL of bacteriostatic water, each 500 mcg injection equals 0.05 mL.
Research Purposes Only
These calculators are provided for educational and research purposes only. Always verify calculations and consult with qualified professionals. The information provided is not medical advice. Peptides should only be used in accordance with applicable laws and regulations.
Note: Triple agonist; microdose for fewer side effects
Research suggestions of Teriparatide interactions with other common peptides and substances.
Paget's disease of bone
Prior skeletal radiation therapy
History of skeletal malignancies
Metabolic bone diseases other than osteoporosis
Pre-existing hypercalcemia
Pregnancy
Signs of hypercalcemia (confusion, fatigue, nausea)
Persistent bone pain
Allergic reactions
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Teriparatide is an extensively studied compound
Teriparatide
Teriparatide is an extensively studied compound
Teriparatide
Intermittent PTH exposure induces bone formation more than resorption; FDA-approved for osteoporosis.
n.d.
The effect of teriparatide therapy on bone density in men with osteoporosis
Spine BMD increased 5.9% (20mcg) and 9.0% (40mcg); femoral neck increased 1.5-2.9%.
n.d.
Teriparatide: 2.5 Years of Experience
Reduced vertebral fractures by 65% and nonvertebral fractures by 35% after 20 months.
n.d.
Parathyroid Hormone (1-84) and Teriparatide in Postmenopausal Osteoporosis
Initial formation without resorption creates 'anabolic window' for rapid bone volume increase.
n.d.