zoledronic acid anhydrous at a glance
Medicine class
Intravenous bisphosphonate
Licensed roles
Preventing skeletal complications of advanced cancer involving bone and treating tumour-induced hypercalcaemia in adults
Administration
Given into a vein by a healthcare professional after dilution
Important checks
Kidney function, hydration, mineral levels and dental health need attention
What is zoledronic acid anhydrous used for?
The selected product is licensed in adults for:
Preventing skeletal-related events, including pathological fractures, spinal compression, and need for surgery or radiotherapy to bone, in advanced malignancies involving bone.
Treating tumour-induced hypercalcaemia.
Some UK cancer services use it as adjuvant treatment after early breast cancer to reduce recurrence risk; this is outside the selected product's listed indications.
How does zoledronic acid anhydrous work?
It has a strong affinity for mineralised bone and is taken up at sites of active bone turnover. It inhibits osteoclasts, the cells that remove old bone, slowing cancer-associated bone destruction and reducing calcium released from bone into the bloodstream.
zoledronic acid anhydrous preparations and strengths
Solution for infusion
Route: Intravenous
Strengths: 4 mg/5 mL
How to take zoledronic acid anhydrous
A healthcare professional administers this product as an intravenous infusion; it is not taken by mouth. The concentrate is diluted in a compatible calcium-free solution and given through a separate infusion line.
Follow the treatment team's instructions about fluids before and after the infusion; excessive fluid may be unsuitable for people at risk of heart failure.
Complete requested blood tests before treatment.
Take calcium or vitamin D only as directed by the clinical team.
Maintain good oral hygiene, attend dental checks and tell your dentist about treatment before dental procedures.
zoledronic acid anhydrous side effects
Common or expected effects
- Fever, chills, fatigue or flu-like symptoms after infusion
- Bone, muscle, joint or generalised pain
- Headache
- Nausea, vomiting or reduced appetite
- Red or inflamed eyes
- Anaemia
- Changes in kidney-function blood tests
- Low calcium or phosphate levels
Get urgent medical advice
- Severe allergic reaction
- Severe low calcium causing spasms, seizures, altered sensation or an abnormal heartbeat
- Acute kidney injury
- Jaw pain, swelling, loose teeth or non-healing mouth sores
- New thigh, hip or groin pain that may precede an atypical femoral fracture
- Severe eye pain, redness or visual disturbance
zoledronic acid anhydrous in pregnancy
The selected product should not be used during pregnancy. People who could become pregnant should discuss contraception and pregnancy plans with their specialist. Human pregnancy evidence is limited, and bisphosphonates remain stored in bone for a long time; contact the prescriber if pregnancy occurs during or after treatment.
zoledronic acid anhydrous while breastfeeding
Breastfeeding is contraindicated for the selected product because it is unknown whether zoledronic acid passes into human milk. Discuss feeding options with the specialist before treatment.
zoledronic acid anhydrous interactions
Tell the treatment team about all prescribed, non-prescribed and complementary products. Important combinations include:
Aminoglycoside antibiotics
May lower blood calcium for longer; caution and monitoring are needed.
Calcitonin or loop diuretics
Additive effects may increase or prolong low calcium.
Nephrotoxic medicines
May increase the risk of renal impairment.
Thalidomide
In multiple myeloma, concurrent use may increase the risk of renal dysfunction.
Common questions about zoledronic acid anhydrous
Answers are fully visible for fast scanning and source review.
Why is it used when cancer has spread to bone?
It slows osteoclast-driven bone breakdown, helping to prevent complications including pathological fractures, spinal compression and need for surgery or radiotherapy to bone.
Can it lower calcium caused by cancer?
Yes. The selected product is licensed to treat tumour-induced hypercalcaemia in adults by reducing calcium release from bone.
Is it an infusion or a tablet?
Sources
These sources were used to prepare and review this medicine page.
Prepared and reviewed by the iatroX editorial team.