Medication·Interactions & depletion·Reviewed June 9, 2026
Risedronate interactions.
Risedronate has 7 documented interactions in the NutriStack database. Prolonged use is also associated with lower Calcium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Risedronate at a glance.
A quick, data-grounded summary. The full tables are below.
Risedronate has 7 documented interactions in the NutriStack database. Prolonged use is also associated with lower Calcium. The full interaction list, depletion table, and replacement suggestions are below. None of this is a substitute for your prescriber's advice.
Substances that interact with risedronate.
Every supplement and medication in the NutriStack database with a documented interaction with this drug, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Calcium | Timing Sensitive | Risedronate forms insoluble chelates with calcium in the gut, which can drop its already low oral bioavailability (~1%) to near zero. Even calcium... details → |
| Iron | Timing Sensitive | Iron (Fe2+/Fe3+) forms tight, non-absorbable complexes with risedronate's phosphonate groups in the gut, blocking its already poor oral absorption.... details → |
| Magnesium Glycinate | Timing Sensitive | Magnesium is a divalent cation that chelates risedronate in the gut lumen and prevents it from being absorbed. Studies of mineral water rich in... details → |
| Zinc | Timing Sensitive | Zinc, like calcium, iron, and magnesium, is a divalent cation that can complex with risedronate in the gut and reduce its absorption. Risedronate's... details → |
| Calcium Carbonate | Synergy | Dietary calcium intake of around 1000-1200 mg/day is required for risedronate to fully build bone, but the calcium must not be taken at the same... details → |
| Vitamin D3 | Synergy | Risedronate, like other bisphosphonates, depends on adequate vitamin D status for full bone benefit and for protection against hypocalcemia. Vitamin... details → |
| Vitamin K2 | Synergy | Vitamin K2 complements bisphosphonate therapy by activating osteocalcin, the matrix protein that binds calcium into bone. Combining vitamin K2 with... details → |
What risedronate can deplete.
Nutrients this medication is associated with lowering over time, with the mechanism, a suggested replacement where one applies, and the biomarker to monitor. Discuss any replacement with your prescriber first.
| Nutrient | Severity | How it happens | Replace with | Monitor |
|---|---|---|---|---|
| Calcium | Moderate | Bisphosphonate suppression of bone resorption can lower serum calcium, especially when calcium intake, vitamin D status, or kidney function is poor. | Calcium | Serum calcium + 25-OH vitamin D |
The full risedronate profile.
Uses, typical dosing, side effects, and the cited evidence for this medication.
Common risedronate questions.
Quick answers drawn from the tables above.
What interacts with Risedronate?
In the NutriStack database, Risedronate has 7 documented interactions. The most notable include Calcium, Iron, Magnesium Glycinate, Zinc, and Calcium Carbonate. Check any specific combination before taking it and confirm with your prescriber.
Does Risedronate deplete any nutrients?
Risedronate is associated with lowering Calcium with prolonged use. Useful biomarkers to monitor include Serum calcium + 25-OH vitamin D. Ask your prescriber before adding any replacement supplement.
Is it safe to take Calcium with Risedronate?
NutriStack classifies the Calcium and Risedronate pairing as timing sensitive: Risedronate forms insoluble chelates with calcium in the gut, which can drop its already low oral bioavailability (~1%) to near zero. Even calcium from mineral water... Take risedronate first thing in the morning with plain tap water only, then wait at least 30 minutes (60 minutes is safer) before any calcium... Always confirm with your prescriber.
Check your whole stack
See how risedronate fits your supplements.
NutriStack screens your full routine for interactions and depletions, and updates the moment you change it.