Etidronate Disodium
Also known as: Didronel, Anfozan, Bonemass, Didronate, Difosfen, Diphos, Dralen, Dronate-OS, Etidrate, Etidron, Etiplus, Feminoflex, Ostedron, Osteodidronel, Osteum, Ostogene, Ostopor, Somaflex, Sviroxit
> **Important Administration Note**: This medication must be given on an **empty stomach** to ensure it is absorbed properly. Food, especially dairy products, will block the drug from entering your pet's system. * **Watch for side effects**: Contact your veterinarian immediately if your pet experiences loss of appetite (anorexia), vomiting, or diarrhea. * **Bone health**: In rare cases, long-term use can affect bone strength. Monitor your pet for any signs of bone pain or limping. * Do not give with antacids or mineral supplements (like calcium or iron) within 2 hours of this medication.
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
What it is used for
- For severe hypercalcemia associated with neoplastic disease
- For severe hypercalcemia associated with neoplastic disease
How it is given
Possible side effects
- Diarrhea
- Nausea (with higher oral doses)
- Bone pain/tenderness
- Increases in serum creatinine
- 'Frozen bone' syndrome in dogs (weakened bones and fractures due to inhibited bone remodeling)
Cautions & contraindications
- Severe renal function impairment (serum creatinine >5 mg/dL)
- Risk vs. benefit should be carefully considered in patients with **bone fractures** (delays healing), **enterocolitis** (higher risk of diarrhea), **cardiac failure** (especially with parenteral etidronate as patients may not tolerate the extra fluid load), or those with **moderate renal function impairment** (serum creatinines 2.5-5 mg/dL). > **Warning**: Do not confuse etidronate with etretinate or etomidate. Safety during pregnancy has not been established (FDA Category C). It is unknown if the drug enters milk.
Drug interactions
- Antacids, dairy products, mineral supplements (iron, magnesium, calcium, aluminum): Absorption of oral etidronate may be inhibited; separate etidronate doses from these substances by at least two hours.
Frequently asked questions
What is Etidronate Disodium used for in pets?
> **Important Administration Note**: This medication must be given on an **empty stomach** to ensure it is absorbed properly. Food, especially dairy products, will block the drug from entering your pet's system. * **Watch for side effects**: Contact your veterinarian immediately if your pet experiences loss of appetite (anorexia), vomiting, or diarrhea. * **Bone health**: In rare cases, long-term use can affect bone strength. Monitor your pet for any signs of bone pain or limping. * Do not give with antacids or mineral supplements (like calcium or iron) within 2 hours of this medication.
Is Etidronate Disodium safe for my pet?
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
This article is for general education and is not a substitute for professional veterinary advice. If your pet is unwell, please consult a veterinarian.
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