Drug interactions
Human parathyroid hormone recombinant + Risedronate
Severity: Moderate
Human parathyroid hormone recombinant and Risedronate: 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
Bisphosphonates inhibit bone resorption and may reduce the calcium-mobilising effect of recombinant PTH. This could make it harder to normalise serum calcium in patients treated for hypoparathyroidism.
What this interaction means in plain words
Human parathyroid hormone recombinant and Risedronate 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
Pharmacodynamic opposition: bisphosphonates suppress osteoclast-mediated bone resorption that PTH stimulates.
What to do
Monitor serum calcium closely and adjust calcium and vitamin D or PTH doses as needed. Avoid concurrent use unless clearly indicated.
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 Risedronate
- Aluminum hydroxide + Risedronate Moderate
- Calcium acetate + Risedronate Moderate
- Calcium carbonate + Risedronate Moderate
- Calcium chloride + Risedronate Moderate
- Calcium citrate + Risedronate Moderate
- Calcium gluconate + Risedronate Moderate
Frequently asked questions
Can I take Human parathyroid hormone recombinant with Risedronate?
MediHelp rates the interaction as moderate. Human parathyroid hormone recombinant and Risedronate 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. Bisphosphonates inhibit bone resorption and may reduce the calcium-mobilising effect of recombinant PTH. This could make it harder to normalise serum calcium in patients treated for hypoparathyroidism.
How serious is the interaction between Human parathyroid hormone recombinant and Risedronate?
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 calcium closely and adjust calcium and vitamin D or PTH doses as needed. Avoid concurrent use unless clearly indicated.
What other medicines interact with Risedronate?
MediHelp also lists interactions of Risedronate with, for example, Aluminum hydroxide, Calcium acetate, Calcium carbonate. The full list is on the Risedronate page.
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