

“Parathyroid” is a historical misnomer, named in the 1800s before its function was understood.
Its function is still misunderstood and overlooked, likely reinforced by the name.
It is not part of the thyroid. It is a separate system, with a distinct embryonic origin.
Its role is different: it regulates calcium in real time, maintaining neuromuscular function, cardiac conduction, and cellular stability. Even small drops can have rapid, systemic effects.
Yorvipath (palopegteriparatide, PTH replacement) is now accessible in 30+ countries via standard approvals and special access programs.
Australia is not one of them, despite TGA approval.
We have accessible hormone replacement for all other major endocrine systems - just not this one.
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If you have hypoparathyroidism, please share your experience below.