Dihydrotachysterol
Dihydrotachysterol is a vitamin D analog used to manage conditions characterized by low blood calcium levels, such as hypoparathyroidism and renal osteodystrophy. It increases intestinal calcium absorption.
A vitamin D analog that treats hypocalcemia by enhancing calcium absorption from the intestines.
Key facts at a glance
- ATC
- A11CC02
- RxNorm
- 3429
- Generic
- Dihydrotachysterol
- Class
- atc-a11
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- oral
- Forms
- capsule, tablet, solution
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of hypoparathyroidism, renal osteodystrophy, vitamin D-resistant rickets, and other disorders causing hypocalcemia
Acts as a vitamin D receptor agonist; increases calcium absorption in the small intestine and promotes calcium-phosphate homeostasis
Serum calcium levels must be monitored regularly to avoid hypercalcemia; has a slower onset but longer duration of action compared to calcitriol; dose adjustments may be needed based on individual response
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy