Drug interactions
Pamidronate + Tenofovir disoproxil
Severity: Moderate
Pamidronate and Tenofovir disoproxil: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both agents are renally eliminated and both can cause renal toxicity. Concurrent use may add to the risk of kidney injury, particularly in patients with pre-existing renal impairment or dehydration.
What this interaction means in plain words
Pamidronate and Tenofovir disoproxil can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive nephrotoxicity and shared renal elimination; pamidronate can reduce renal function, thereby raising tenofovir exposure.
What to do
Monitor serum creatinine and phosphate regularly and ensure adequate hydration. Adjust the dosing interval of tenofovir if creatinine clearance falls.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Pamidronate
- Aluminum hydroxide + Pamidronate Moderate
- Dichlorphenamide + Pamidronate Moderate
- Foscarnet + Pamidronate Moderate
- Pamidronate + Tenofovir df Moderate
- Calcium carbonate + Pamidronate Minor
- Calcium + Pamidronate Minor
Frequently asked questions
Can I take Pamidronate with Tenofovir disoproxil?
MediHelp rates the interaction as moderate. Pamidronate and Tenofovir disoproxil can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both agents are renally eliminated and both can cause renal toxicity. Concurrent use may add to the risk of kidney injury, particularly in patients with pre-existing renal impairment or dehydration.
How serious is the interaction between Pamidronate and Tenofovir disoproxil?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum creatinine and phosphate regularly and ensure adequate hydration. Adjust the dosing interval of tenofovir if creatinine clearance falls.
What other medicines interact with Pamidronate?
MediHelp also lists interactions of Pamidronate with, for example, Aluminum hydroxide, Dichlorphenamide, Foscarnet. The full list is on the Pamidronate page.
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